Podcast
Renovation Collaborative
Hosted by Stephanie Skyring · EN
Highly respected Australian residential architect Stephanie Skyring interviews industry experts to share the latest environmentally sustainable home design ideas, products and materials.
Each podcast season demystifies a specific topic. Episodes are released weekly on Tuesdays.
Australian Architects can claim their formal CPD hours for listening to the podcasts and completing an online quiz. Find out more at www.renovationcollaborative.com.au
11episodes
Episodes
Newest firstAll episodes
Get Started: Climate Action in the built environment across Australia
Nov 1701:03:11Tap to summarizeAcross Australia numerous groups are taking meaningful climate action and working hard to develop inspiring solutions. Today, I speak with representatives from five different organisations from the built environment to find out what’s happening. These groups tackle climate change from various angles, employing different structures and methods. They include formal committees, research groups, informal support and information sharing, and grass roots action. Today we’ll hear from: 1. The Australian Institute of Architects, Climate Action and Sustainability Committee – Andrew Noonan2. The Retrofit Lab, from the University of Melbourne – Professor Sarah Bell3. Australian Architects Declare – Steffen Welsch4. Parlour Regenerative Designers Annexe – Anna Lindstad5. Architects Climate Action Network, Australia – Lucy HumphreyMost of the groups I speak with today welcome all built environment professionals. And most importantly, they all provide free environmental information on their websites. Australian Architects can claim formal CPD hours the time they spend listening to the podcasts. MORE INFORMATIONFind everything you need on the Renovation Collaborative website. www.renovationcollaborative.com.auPODCASTKey points summary, timestamps and resource linksFREERESOURCESTranscript edited into clear Q&A.CPDAustralian architects can find more information on CPD, andCOURSESEleven easy to read courses demystifying the entire home design and construction process. INTERVIEW QUESTIONS[00:00:00] Introduction[00:01:43] AIA – Climate Action & Sustainability Committee – Andrew Noonan[00:02:19] What are the primary functions of the committee at State & National level?[00:05:24] What projects are you working on at the moment?[00:07:08] Can you tell us about the Embodied Carbon Curriculum?[00:09:43] How can architects get involved?[00:11:27] The Retrofit Lab, The University of Melbourne – Professor Sarah Bell[00:12:08] How did the Retrofit Lab get started?[00:14:13] Can you tell us about the Retrofit Lab and the work you do?[00:20:18] Tell us about your project investigating digital info for retrofit decisions?[00:23:53] Tell us about about your Climate Safe Rooms project?[00:26:42] How can we get involved and find out more?[00:28:29] Australian Architects Declare – Steffen Welsch[00:29:29] How did Architects Declare get started in Australia?[00:31:06] What are your primary aims?[00:31:44] How is it run?[00:33:49] How can architects get involved?[00:35:17] What campaigns are you working on?[00:39:35] Do you have any final advice for anyone considering getting involved?[00:41:09] Parlour: Regenerative Designers Annexe – Anna Lindstad[00:42:04] How did this group get started?[00:43:30] Tell us about your events and how to get involved?[00:45:07] Architects Climate Action Network (ACAN) Australia – Lucy Humphrey[00:45:58] How did you come to co-found ACAN in Australia?[00:47:33] Tell us about ACAN and what it does?[00:49:26] What are the primary aims?[00:51:38] How can built environment professionals get involved?[00:57:15] What other climate action groups could you recommend?[00:58:47] Do you have any advice for anyone considering joining a climate action group? THANKYOUI want to say a big thank you for joining me this season as we explored the latest sustainable design knowledge. I truly hope the ideas and information that we've discussed have helped you clarify a path forward for improving the environmental outcomes of your projects. I also want to say a special thank you to all my guests for generously sharing their knowledge to help us all renovate smarter. I'll be back in 2026 with Season 4. REVIEWIf you're enjoying my podcasts, I would love it if you would leave me a review or a star rating to help others find the show, head over to www.ratethispodcast.com/renovationcollaborative and follow the simple instructions. RESOURCE LINKSAUSTRALIAN INSTITUTE OF ARCHITECTS: CLIMATE ACTION & SUSTAINABILITY COMMITTEEAustralian Institute of Architects Embodied Carbon Curriculumhttps://www.architecture.com.au/embodied-carbon-curriculumWhere to find out about Living Building Exchange Videos https://www.architecture.com.au/eventsAIA Climate Action Plan - https://www.architecture.com.au/advocacy-news/policy/architecture-industry-decarbonisation-plan-2025-2050WA Chapter: Regenerative design resources: https://www.architecture.com.au/sa-chapter/regenerative-design-resources THE RETROFIT LAB: THE UNIVERSITY OF MELBOURNEThe Retrofit Lab Website: https://www.unimelb.edu.au/retrofitClimate Safe Room Initiativehttps://www.yarracity.vic.gov.au/climate-and-sustainability/renewable-yarra/create-all-electric-home/climate-safe-roomsEnergy Efficiency and Electrification Alliance https://www.3ea.com.au/ AUSTRALIAN ARCHITECTS DECLAREArchitects Declare website: https://architectsdeclare.com.au/Resources: https://architectsdeclare.com.au/resources/Sustainability Action Plan https://architectsdeclare.com.au/wp-content/uploads/2024/09/AAD-Sustainability-action-plan-template.pdfProduct Aware https://www.productaware.au/Sustainable Builders Alliance https://www.thesba.com.au/Australian Suppliers Declare https://au.suppliersdeclare.com/ PARLOUR REGENERATIVE DESIGNERS ANNEXEParlour – Regenerative Designers Annexe website: https://parlour.org.au/parlour-annexe/regenerative-designers/ ACAN AUSTRALIAACAN Australia website: https://acanaustralia.org/ACAN / Melbourne University - Demolition Atlas project https://msd.unimelb.edu.au/events/exhibitions/melbourne-design-week/melbourne-demolition-atlas-workshopClimate Action in Australian Architectural Practicehttps://www.aasa-arch.org/post/climate-action-in-australian-architectural-practice-2022-industry-survey-results OTHER AUSTRALIAN CLIMATE ACTION GROUPSArchitects Assist https://www.architectsassist.org/Parents For Climate <a href="https://www...
Transcribe →Get Started: Reducing Embodied Carbon – Lucy Humphrey, Studio Ecology
Nov 1001:12:57Tap to summarizeReducing embodied carbon in all new buildings and renovations is fast becoming a global priority, and in Australia new regulations are on the horizon. In today's episode, we move on to our final theme - Getting Started - and the first of two episodes to conclude the season.I talk with environmental architect, artist and well known Australian climate advocate Lucy Humphrey. Lucy is a director of the climate active architecture practice Studio Ecology, she teaches at the School of Architecture at the University of Sydney and the Sydney University of Technology and was a co-founder of the Australian branch of ACAN. Today, Lucy gives us a powerful wake up call about the current state of our planet. And she shares strategies to help us decarbonise our designs and meet our global targets, so together we can bring about change. We'll learn about: What's really happening to the planet and why change is urgent,The validity of climate emotionsAbout Life cycle carbon assessments and practical strategies to reduce embodied carbon.What's happening to the construction industry in Denmark where construction carbon caps are now mandatory, and alsoThe critical importance wholistic design thinking Australian Architects can claim formal CPD hours the time they spend listening to the podcasts. MORE INFORMATIONFind everything you need on the Renovation Collaborative website. www.renovationcollaborative.com.auPODCASTKey points summary, timestamps and resource linksFREERESOURCESTranscript edited into clear Q&A.CPDAustralian architects can find more information on CPD, andCOURSESEleven easy to read courses demystifying the entire home design and construction process. KEY POINTS SUMMARY[01:08:57] Stephanie: Today's summary only scratches the surface, and I found it very challenging to narrow down six key points. Lucy’s knowledge and passion are both inspiring and empowering so I recommend listening to the episode or reading the transcript.1. Climate emotions are valid and can include heavy feelings such as anger, isolation, grief and guilt. It's completely acceptable and healthy to take a step back and say, ‘No, I'm not engaging with this today.’ As an industry, we need to foster open conversations about this to enable everyone to embrace change. 2. Enable clients to make informed decisions about their home designs by sharing embodied carbon information and letting them decide. The best time to start talking about reducing embodied carbon is in the concept design stage at the very beginning of the project. This is when we have the most power to reduce carbon and all environmental impacts, because we can choose not to build, to reduce the size, we set the direction for the structural system and the form. Present design options with clearly indicated carbon impacts, such as very low, medium and high carbon. Share this information with engineers and builders to empower all parties to effect change. 3. Embodied carbon is part of material knowledge and must become a fundamental part of every designer's skill set. To get started and gain a general understanding of materials, have a look at the Australian Institute of Architects, Embodied Carbon Curriculum. And learn to do a basic carbon lifecycle assessment.4. Reduction of carbon emissions - both embodied and operational - is critical, but it's only part of the equation. When designing, always balance three equal aims: Mitigation of carbon emissions,Regeneration of nature, andAdaptation to heat, flooding and bushfire.5. Ideally, Australia needs to halve its carbon emissions by 2030. To achieve this in architectural practice, establish a benchmark by measuring the embodied carbon on past projects and aim to halve that on future work. Focus on structural materials because they account for around 70% of embodied carbon. As a general guide, standard architectural homes average around 500 -1000 kilograms of CO2e, carbon dioxide equivalents per square metre. Lucy suggested that in most cases a 20-30% carbon reduction was reasonably achievable through designing out heavy carbon materials like concrete and new masonry and material substitution. However greater carbon reductions required substantial use of recycled materials and a significant shift towards avoiding demolition unless absolutely essential. 6. Globally, Denmark has enacted policies around embodied whole of life carbon including caps per square metre. And the good news is their construction industry is alive and well. This legislation has opened up new opportunities in the circular material and recycling industry and created new aesthetics. I love how the innovative Denmark sustainable architectural practice Lendager uses an inspirational tagline ‘Form follows availability.’And finally, building less comes with benefits of time and financial freedom. There is less stuff to manage, less space to clean, less home to pay for in terms of bills and mortgage. Flow on effects include opportunities to work less hours or even less days in the week, delivering more free time, better health, better relationships and improved quality of life. Now that's real food for thought. INTERVIEW QUESTIONS[00:00:00] Introduction[00:01:44] Why did you become so active in driving environmental change?[00:04:22] Is anyone talking openly about climate change impacts?[00:05:22] How is ACAN helping create space for these heavy conversations?[00:12:08] Are any media talking openly about climate change?[00:17:39] When and how should approach design for climate change with clients?[00:20:42] How can architects learn about material embodied carbon and LCAs?[00:23:35] Is engaging a sustainability consultant for an LCA a good way to get started?[00:24:25] Do any countries in Europe have regulations around construction carbon emissions? [00:25:47] Are there any guidelines to help us reduce embodied carbon by 50% by 2030?[00:29:39] What useful info is in the Leti Guides from the UK?[00:31:05] Can you give us some practical steps to get started reducing carbon emissions?[00:32:31] Can you give us advice around the implications of using timber to reduce carbon?[00:36:44] How easy is it to reduce carbon emissions by 50%[00:39:41] How can we get to 98% reduction in 10 years?[00:41:02] Do you have advice on a holistic approach to design? [00:43:56] No demolition at all is a very big mindshift![00:49:25] In Denmark - What has happened to the industry since imposing carbon regulations?[00:55:20] What is your final advice to help everyone move forward with reducing impacts and embracing change?[01:07:11] Key point summary IN THE NEXT EPISODENext week we move on to our final Getting Started episode and our final episode in season three. We'll find out about Climate Action Around Australia and what's happening behind the scenes to bring about change. I talk with guests from:The Australian Institute of Architects - Sustainability & Climate Action Committee,The RetroFit Lab - The University of MelbourneAustralian Architects Declare,ACAN Australia, andParlour Regenerative Designers Annexe.We'll find out who's doing what, how to get involved and where to find more information. RESOURCE LINKSEMBODIED CARBON GUIDESAustralian Institute of Architects Embodied Carbon Curriculumhttps://www.architecture.com.au/embodied-carbon-curriculumAustralian Reduction Roadmap https://reductionroadmap.au/EPIC databasehttps://msd.unimelb.edu.au/research/projects/current/environmental-performance-in-constructionICE databasehttps://circularecology.com/embodied-carbon-footprint-database.htmlLeti UK – Low Embodied Carbon Specification and Procurement Guide <a href="https://www.leti.uk/specification" target="_blan...
Transcribe →Water & Ecosystems: Delight in your environment – Tim Bennetton, Tim Bennetton Architects
Nov 300:48:04Tap to summarizeCareful consideration of water is now a critical part of design as we confront increasing floods and droughts due to climate change. In today's episode, we move on to our next sustainable design theme - Water and Ecosystems. We'll investigate the design of a small extension to an old timber home located in suburban subtropical Brisbane. This project has a very challenging site with overland flow and stormwater flooding issues. I talk with architect Tim Bennetton, the director of Tim Bennetton Architects, who will share the inside story on his Yeronga House project. Tim has successfully transformed this problem site into a valuable asset that not only brings joy to the homeowners, but also provides much needed habitat for local flora and fauna. Today we'll learn about: The importance of retaining stormwater and rainwater on site and appreciating water as a very valuable resource.Ideas that improve the resilience of cities to heavy rainfall and flooding, while also improving water quality and biodiversity, andWe'll also cover a wealth of other insights from Tim's years of experience. Australian Architects can claim formal CPD hours the time they spend listening to the podcasts. MORE INFORMATIONFind everything you need on the Renovation Collaborative website. www.renovationcollaborative.com.auPODCASTKey points summary, timestamps and resource linksFREE RESOURCESTranscript edited into clear Q&A.CPDAustralian architects can find more information on CPD, andCOURSESEleven easy to read courses demystifying the entire home design and construction process. KEY POINTS SUMMARY1. This site was affected by overland flow or water that runs or ponds on the site after rainfall. Overland flow may occur before the stormwater enters a creek, or when the stormwater leaves the creek as floodwater, or in some cases when stormwater rises to the surface naturally from underground. Overland flow typically occurs in natural low lying drainage paths. And as we discover today with good design, overland flow can become a positive asset because water is a valuable resource, particularly into the future as droughts increase. 2. Urban development in low lying stormwater flow channels leads to multiple problems such as: Increased flood levels, meaning that buildings take up space causing water to pile up, increasing flood depth and velocity, Reduction of natural absorption processes, meaning that a natural soft landscape of grasses, trees and other vegetation absorbs water and slows its movement, whereas hard surfaces and buildings prevent this from occurring, andIncreased impervious surfaces, meaning that urban built surfaces like concrete, asphalt and roofs cause rapid and increased runoff. When it reaches the local waterways. The additional fast forward moving water causes erosion of banks and destruction of waterway ecosystems.3. Sponge cities are urban areas designed to absorb, store and reuse water to mitigate flooding and manage water resources. A combination of features like wetlands, permeable pavements, green roofs and urban gardens are used to help control stormwater runoff. Instead of relying solely on traditional drainage systems. The goal is to create cities that are more resilient to heavy rainfall and climate change while also improving water quality and biodiversity. 4. This project followed the principles of sponge cities and overland flow and rainwater tank overflow was captured in vegetated seasonal creek beds. They removed the nutrients from the water, improving water health in the river and Moreton Bay.They reduced the amount and speed of stormwater runoff.They allowed the water to slow down and improve absorption into the soil, andThey retained water and moisture in the soil and on the site longer, supporting the growth of wildlife habitat.5. The goal of sponge cities is to have the upstream properties and the downstream properties all part of the same natural stormwater ecosystem. In other words, to expand this concept across multiple properties, linking the entire overland flow catchment and also linking across multiple catchments. In addition to the multiple waterway benefits, this would create beneficial wildlife corridors. And finally, 6. If you're looking to reuse water on your property, the first step is to find out what's allowable under the local council regulations. If you're seeking a complex solution for an off grid site, Tim recommended engaging a hydraulic engineer for design and to recommend the best products for rain harvesting and sewage treatment suited to your needs and site. INTERVIEW QUESTIONS[00:00] Introduction[01:28] How did you get started into sustainable design?[02:39] Tell us about your practice [04:00] Has interest in knowledge in sustainable design been increasing?[05:05] What was the project brief?[06:33] Tell us about the Brisbane climate[07:28] Tell us about the climate responsive design solutions you used.[11:14] Tell us about the site issues.[14:30] How did you design to accommodate the overland flow?[17:23] What are the benefits of Sponge Cities approach[20:22] Tell us about the exterior form and materials[27:07] Tell us about the doors and windows you used[30:03] Tell us about the interior design decisions[31:16] Tell about your strategies for household water use and reuse[38:47] What advice do you have for anyone wanting to build sustainably or maximise use of water on site.[42:45] Key points summary IN THE NEXT EPISODEThis was our last case study project for the season. Next week, we move on to Getting Started, and over the next two episodes I wrap up the key learnings from the season to help you move forward.I talk with environmental architect, artist and well known Australian climate advocate Lucy Humphrey. Lucy is a director of the climate-active architecture practice, Studio Ecology, she teaches at the School of Architecture at the University of Sydney and the Sydney University of Technology and was a co founder of the Australian branch of ACAN.Lucy gives us a powerful wakeup call about the current state of our planet and the urgency to act. And She helps us understand building carbon emissions, plus how to measure them and how to reduce them to hit our targets so together we can bring about change. RESOURCE LINKSTIM BENNETTON ARCHITECTS - Project Page (images) Yeronga House https://www.timbennetton.com.au/projects/yeronga-house PROJECT INFOProject Hydraulic Engineer (and project owner) - Water Technology https://www.watertech.com.au/Finlayson Envirowood Timber Doors and Windows https://www.finlayson.com.au/products/envirowood/Feast Watson Black Japan Stain https://www.feastwatson.com.au/colour/black-japanWhittle Wax Evolution hard wax oil https://www.whittlewaxes.com.au/collections/hardwax-oils?srsltid=AfmBOoqI8M1sHDOffMIzbVf5NQFt4Ki5u-LHMhk950NH_iE6TYGA3NfJ OTHER INFORMATIONGabriel Poole Architect https://gabrielpoole.com.au/Gabriel Poole – Lake Weyba House https://www.sunshinecoastopenhouse.com.au/building/22-lake-weyba-house/ REVIEWAnd finally today, if you're enjoying my podcasts, I would love it if you would leave me a review or a star rating. To help others find the show, head over to www.ratethispodcast.com/renovationcollaborative and follow the simple instructions. GET IN TOUCH...
Transcribe →Healthy Buildings: Hempcrete and materials for a healthy home – Michael Leung, Balanced Earth Architects
Oct 2700:58:46Tap to summarizePrioritising health when selecting materials and products is simply common sense, and the best thing about healthy materials – they are also brilliant for the environment. In today’s episode we move on to our next sustainable design theme – healthy buildings.We’ll investigate the design of a house on an off grid site located in Mullumbimby in the Subtropical northern New South Wales hinterland. I talk with architect, Michael Leung, the director of Balanced Earth Architects, who will share the inside story on his Sky Farm project. Today we’ll learn about:The key design considerations, materials and products for a healthy home,We talk further about the process, costs and benefits of using hempcrete in custom architectural construction, andWe’ll also cover a wealth of other insights and practical information drawn from Michael’s extensive experience as both an architect and a builder.Australian Architects can claim formal CPD hours for these podcasts. MORE INFORMATIONFind everything you need on the Renovation Collaborative website. www.renovationcollaborative.com.auPODCASTKey points summary, timestamps and resource linksFREERESOURCESTranscript edited into clear Q&A.CPDAustralian architects can find more information on CPD, andCOURSESEleven easy to read courses demystifying the entire home design and construction process. KEY POINTS SUMMARY1. Healthy building is about interrogating the detail of materials. Often that's not presented on websites and you have to dig deeper into the Material Safety Data sheets.After extensive research, Balanced Earth Architects now work with a simple palate of materials and the basics include: hempcrete, recycled timber and other materials from demolition, galvanised steel, timber windows, and natural finishes including clay and lime renders. 2. A hempcrete and lime rendered wall composition prevents mould growth. Hempcrete is vapour permeable, allowing moisture to travel from the inside to outside. In addition, lime render has an alkali surface preventing mould growth. 3. A hempcrete wall is set up as follows: It can be constructed on a timber framed or concrete floor.In timber framed construction, the joists or bearers may be doubled up to carry more load when the hemp is wet. Then a 10 or 20mm compressed FC board is fixed on top as a base for the hempcrete.To build the wall, a timber stud frame is setout 80mm in from the external wall line. The 90x45 stud sits centrally in the 250mm hempcrete wall, allowing 80mm of cover on both inside and outside.The entire house is constructed with standard timber stud frame construction. All timber can be untreated pine because the lime in the hempcrete protects the timber, andThe services are clipped into the stud wall, and the formwork is set up ready for the hempcrete.4. Concrete interior floor slabs are burnished and then finished with a natural flax seed oil.Burnishing is a process that creates a smooth, dense and low sheen surface by mechanically trowelling a concrete slab before its fully cured. Unlike polished concrete, burnishing does not grind down the concrete or expose aggregate. The process uses a power trowel or helicopter to compact and smooth the surface to a sleek durable finish.5. Other healthy internal materials and finishes include:Wall linings of pine boards, plasterboard or Villaboard finished with natural clay or lime paints, and natural clay or lime renders. Cabinetry carcasses are constructed from VOC free moisture resistant plywood, painted with natural paint. There is no melamine cabinetry.Kitchen benches are made from timber, concrete or a copper treated with natural oils.Wet areas avoid tiles on walls or floors to minimise the opportunity for mould growth in tile joints. Instead the walls are finished in a burnished render. Burnishing involves trowelling the fresh render surface until it is completely smooth and all pores and scratches are removed. Bathroom floors and showers are finished with micro cement and sealed.6. Materials for roof water collection and storage systems avoid chemical leaching and include:Galvanized steel roof sheeting, gutters and downpipes.HDPE pipes (never PVC).Rainwater tanks made from stainless steel or concrete.7. EMR or electromagnetic radiation exposure is reduced - particularly in bedrooms. All cabling in the house is not within 2 metres of any sleeping head, particularly children. Solar panels and batteries are located on sheds or garages and away from sleeping and habitable spaces, and Internet cabling and plug in connection is provided to avoid WIFI wherever possible. INTERVIEW QUESTIONS[00:00] Introduction[01:11] How did you get started into sustainable design?[03:40] Tell us about Balanced Earth Architects and Balanced Earth Builders[08:13] In your experience, is awareness and knowledge about sustainable design increasing?[09:30] What was the sustainable design brief for this project?[15:45] What is the Byron hinterland climate like?[16:31] What were your key design strategies to deal with this subtropical climate?[18:52] Tell us more about hempcrete construction?[21:35] Does hempcrete take longer to build than standard construction?[24:10] How does hempcrete cost compare with other types of construction?[25:18] Tell us about lime render?[27:22] Tell us about the other interior materials and finishes?[29:14] What paints do you use?[31:33] What materials did you use in the kitchen?[33:32] What materials did you use in the bathrooms?[36:39] What are the key criteria to make a healthy home?[40:54] What did you use for your solar power system?[42:59] What did you used for your sewage treatment?[44:26] What did you use for your rainwater harvesting system?[48:34] What advice would you give to anyone wanting to build a healthy home? IN THE NEXT EPISODENext week we move on to our next sustainable design theme - Delight in your environment. We'll investigate the design of a small extension to an old timber home and some very important landscape work on a challenging site with overland water flow issues, located in suburban subtropical Brisbane. It's an inspiring transformation from a problem site into a valuable asset that brings joy to the owners and provides a much needed habitat for local flora and fauna. I talk with architect Tim Benetton, the director of Tim Benetton Architects, who'll share the inside story on his Yeronga House project. RESOURCE LINKSBALANCED EARTH ARCHITECTS - Project Page (images) Skyfarm https://www.balancedearth.co/all-projects/skyfarmBALANCED EARTH BUILDING COMPANY https://www.balancedearth.co/PROJECT INFOGeorgio Graesan: https://www.giorgiograesanqld.com.au/products/Hempcrete internal clear finish - Rockcote Repel https://rockcote.com.au/product/repel/Livos https://livos.com/Rockcote: https://rockcote.com.au/product-category/natural-materials/Rockcote Clay & Lime plaster: https://rockcote.com.au/product/otsumigaki/Micro CementWater filter systems: https://watershop.com.au/ OTHER INFORMATIONLuigi Roselli Architects https://luigirosselli.com/ REVIEWAnd finally today, if you're enjoying my podcasts, I would love it if you would leave me a review or a star rating. To help others find the show, head over to <a href="http://...
Transcribe →Prefabrication: Structural Insulated Panels (SIPS) & Passivhaus – Murray Robertson, Robertson Architects NZ
Oct 2000:35:42Tap to summarizeSIPS, or structural insulated panels are a fast and efficient way to achieve very high thermal performance. In today's episode, we continue exploring prefabricated panel solutions. We investigate the design of a passive house built from SIPS on a very challenging site in the oceanic temperate climate of Wellington, in New Zealand. Architect Murray Robertson, the director of Robertson Architects, shares the inside story of his Bell House project. Today we'll explore the process, benefits and costs of SIPs and when they're an ideal solution.Australian Architects can claim formal CPD hours for these podcasts. MORE INFORMATIONFind everything you need on the Renovation Collaborative website. www.renovationcollaborative.com.auPODCASTKey points summary, timestamps and resource linksFREE RESOURCESTranscript edited into clear Q&A.CPDAustralian architects can find more information on CPD, andCOURSESEleven easy to read courses demystifying the entire home design and construction process. KEY POINTS SUMMARY1. Structural insulated panels or SIPs are used in floors, walls and roofs for residential and light commercial buildings. The panels are made by sandwiching a core of rigid foam plastic insulation between two structural facings and in this case Murray used oriented strandboard (OSB). SIPS are manufactured off site and are custom designed for each project. 2. SIPs panels do have some timber framing in them, but much less than a standard timber stud wall. The reduced timber content plus the polyurethane insulation deliver better thermal performance than standard insulated timber frame construction. 3. The external wall composition of this project was as follows:The basic external shell was a 165 mm thick SIPS panel.Externally, the ProClima weathertight membrane was fixed directly to the SIPS board and a 45x45 timber structural cavity batten attached to the outside of the membrane for the external cladding, andInternally, 45 x 45 timber battens were fixed to the SIPs, creating space for services, additional insulation and attachment for internal plasterboard lining.4. Internally, the oriented strandboard lining can be exposed rather than covered with plasterboard to save costs, but this approach makes access to services much more challenging. Additionally, since the strandboard wall serves as the finished surface, it requires protection during construction. 5. SIPS are very airtight, making them very appealing for use in Passive House projects. Only the joints in the very large SIPS panels require taping. And finally, 6. Important design considerations when using SIPs include:Lintels above doors and windows cannot be concealed within the ceiling, meaning that floor to ceiling glazing is not possible, andSIPS roof panels stop at the wall line resulting in no eaves overhang. Therefore, a custom solution to attach eaves is required. INTERVIEW QUESTIONS[00:00] Introduction[00:55] How did you get started in sustainable design?[03:19] What was the project brief?[04:42] What is the Climate of Wellington in NZ[05:27] What were the site issues?[08:09] Why did your clients pursue Passive House?[08:57] Tell us about the design of the structure?[11:13] What are SIPS?[12:51] What is the total wall composition?[16:12] How are SIPS installed on site?[18:42] Is any structure required or are SIPS load bearing?[19:47] Can you expose the SIPS strandboard lining internally?[21:23] Were SIPS cost saving?[23:42] What materials were used on the building exterior?[24:48] What is thermally modified timber?[26:19] What doors and windows were used?[27:18] What environmental materials did you choose for the interior?[28:21] What is your opinion of Hardwax oils for interior timber floors?[29:50] What advice would you give anyone considering using SIPS?[31:05] Would you use SIPS again?[31:55] Key points summary IN THE NEXT EPISODE Next week we move on to our next sustainable design theme, Healthy Buildings. We'll investigate the design of a house on an off-grid site located in Mullumbimby in the subtropical northern New South Wales hinterland. I talk with architect Michael Leung, the director of Balanced Earth Architects, who will share the inside story on his Sky Farm project. Michael discusses the key design considerations, materials and products for a healthy home. RATING And finally today, if you're enjoying my podcasts, I would love it if you would leave me a review or a star rating. To help others find the show, head over to www.ratethispodcast.com/renovationcollaborative and follow the simple instructions. RESOURCE LINKSROBERTSON ARCHITECTS - Project Page (images) https://www.robertsonarchitects.co.nz/projects-1/bell-housePROJECT INFOProClima external building wrap https://proclima.co.nz/products/weathertightness-systems/solitex-extasanaNeuffer Windows https://www.neuffer-windows.co.nz/Luna Wood https://lunawood.com/Rubio Monocoat https://rubiomonocoat.com.au/Evolution Hardwax oil https://www.whittlewaxes.com.au/collections/hardwax-oilsOTHER INFOROBERTSON ARCHITECTS BLOG – State House to Passive Househttps://www.robertsonarchitects.co.nz/blog/categories/residential GET IN TOUCHIf you've got any comments or questions or there's any topic you'd like to know more about, please send me an email at hello@renovationcollaborative.com.au.
Transcribe →Prefabrication: Cross Laminated Timber (CLT) design & construction - Jae Warrander, Makers
Oct 1300:53:23Tap to summarizeHouse prefabrication using flat pack panels delivers multiple environmental and cost benefits and is the way of the future. In today's episode, we dive into our next sustainable design theme, prefabrication, and we'll explore house design and construction using cross laminated timber. Architect Jae Warrander, director of Makers, shares the story behind his Akaroa Bach: a prefabricated holiday home situated in a mild temperate climate on the east coast of New Zealand's South Island. Makers, located in Wellington, New Zealand, is a collaboration between Makers of Architecture and Makers Fabrication. Today we'll explore what CLT is, the process, benefits and costs of using CLT for prefabricated panel construction, and the ideal scenarios for utilising CLT. Australian Architects can claim formal CPD hours for these podcasts. MORE INFORMATIONFind everything you need on the Renovation Collaborative website. www.renovationcollaborative.com.auPODCAST Key points summary, timestamps and resource linksFREE RESOURCES Transcript edited into clear Q&A.CPD Australian architects can find more information on CPD, and COURSES Eleven easy to read courses demystifying the entire home design and construction process. KEY POINTS SUMMARY1. Cross Laminated Timber (CLT) is an engineered wood panel product created by gluing layers of timber together with the grain alternating at 90 degrees for added strength. CLT panels are cut into entire wall, floor and roof sections with precise computer accuracy. 2. CLT buildings must be meticulously designed and this includes all openings and holes cut for doors and windows, services, fittings and even power points. Everything must be accurately located in the computer shop drawings because making changes on site is very challenging. 3. The CLT serves as both the internal wall lining and the structural shell. Externally, it needs thermal insulation, a weather and air tightness building wrap and cladding for weatherproofing. Internally, makers utilise prefabricated stud frame walls in conjunction with CLT to accommodate access to services, particularly in bathrooms. 4. Once prefabricated, the CLT panels are transported to the site and assembled to create the entire building form. The construction timeline is streamlined because site foundations, retaining walls and service connections can occur simultaneously with the off site CLT prefabrication. 5. Prefabrication using CLT offers several advantages: It replaces studs, bracing and other structural components. It eliminates the need for trims such as skirtings, cornices and architraves. It's made from locally sourced New Zealand pine. It reduces construction time on site. It enables building on remote or difficult to access sites, sometimes even by helicopter lift, and Off site construction minimises waste and enhances building quality. 6. Makers Fabrication are professional builders who also offer CLT cutting and prefabrication services to other architects and industry. And finally, don't take my word for it. You can find out what it's like to live in a CLT house for yourself. The Akaroa Bach is available for holiday rentals on Airbnb. Find the link in the show notes INTERVIEW QUESTIONS[00:00] Introduction[01:14] How did Makers start?[04:30] In your experience is interest in sustainable design changing?[05:23] What was the design brief?[07:12] What is CLT?[11:10] Does CLT replace the stud frame?[12:08] What is the external wall build up?[17:29] How are services integrated into the external frame?[19:29] How are doors and windows incorporated?[22:05] Where does your timber come from?[22:27] Do CLT structures go on posts or a concrete floor slab?[26:19] How do the interiors work?[33:02] How does the structure work – are there posts and tie down?[34:20] How do you work out if a site is suitable for prefabrication?[35:39] Is CLT and prefabrication suitable for extensions?[36:31] What is the benefit of CLT over standard prefabricated timber stud frame?[41:50] Are panelised systems (CLT or stud frame) more cost effective than standard construction?[43:09] Are the services of Makers Fabrication available to other architects and industry?[45:32] How would an architect work with you if they wanted to utilise Makers Prefabrication?[47:18] What advice would you give to anyone wanting to build with CLT or stud frame prefabrication?[49:34] Key points summary IN THE NEXT EPISODENext week we continue investigating prefabricated panel systems. We'll explore structural insulated panels, or SIPs and their use in a new Passive House located on a very challenging site in the mild temperate climate of Wellington, New Zealand. Architect Murray Robertson, a director of Robertson Architects in New Zealand, will share the story behind his Bell House project. And finally today, if you're enjoying my podcasts, I would love it if you would leave me a review or a star rating. To help others find the show, head over to www.ratethispodcast.com/renovationcollaborative and follow the simple instructions. RESOURCE LINKSMAKERS OF ARCHITECTURE - Project Page (images) https://www.makersofarchitecture.co.nz/project/akaroa-bachMAKERS FABRICATION – CLT Construction (general images) https://makersfabrication.co.nz/MAKERS WEBSITE https://makers.co.nz/PROJECT INFOTerra Lana wool insulation: https://www.terralana.co.nz/PIR Insulation NZ: https://greenstuf.co.nz/product/greenstuf-pir-panel/ProClima Building WrapBathroom light wall - Multi-wall Polycarbonate claddingTimber floor finish: Osmo Polyxoil Raw (white tinted finish to keep pine looking natural and prevent it yellowing) Australia: https://www.osmoaustralia.com.au/products/polyxoil-raw-NZ: https://www.osmo.co.nz/product/Polyx%C2%AE-Oils%20Raw%20and%20Natural%20OTHER INFOXLAM https://xlam.co/Airbnb – Bellbird Bach – Akaroahttps://www.airbnb.com.au/rooms/1354774335327608889?search_mode=regular_search&adults=1&check_in=2025-06-01&check_out=2025-06-06&children=0&infants=0&pets=0&source_impression_id=p3_1748433124_P3K8SODsiituoEQ5&previous_page_section_name=1000&federated_search_id=96e3ba2d-19ed-4949-b1ad-071d0ff392e4Makers of Architecture - Warrander Studio https://www.makersofarchitecture.co.nz/project/warrander-studio GET IN TOUCHIf you've got any comments or questions or there's any topic you'd like to know more about, please send me an email at hello@renovationcollaborative.com.au.
Transcribe →Earth Building: Rammed Earth – Steffen Welsch, Steffen Welsch Architects
Oct 600:50:12Tap to summarizeAre you looking for a unique sustainable material with a low carbon footprint? In today's episode, we move on to our next sustainable design theme, Earth Building, and investigate rammed earth construction. Architect Steffen Welsch, director of Steffen Welsch Architects, shares the story behind his Butterfly House project, located on an off-grid site in Rutherglen in the hot, dry summer and cool winter climate of north-eastern Victoria. Today we'll learn about the process, benefits and costs of using rammed earth construction and a wealth of insights and practical information drawn from Steffen's extensive experience. Australian Architects can earn formal CPD hours by listening to these podcasts and completing an online quiz. MORE INFORMATIONFind everything you need on the Renovation Collaborative website. www.renovationcollaborative.com.auPODCAST Key points summary, timestamps and resource linksFREE RESOURCES Transcript edited into clear Q&A.CPD Australian architects can find more information on CPD, and COURSES Eleven easy to read courses demystifying the entire home design and construction process. KEY POINTS SUMMARY1. Rammed earth was chosen for this project because it suits the local continental climate. It optimises energy efficiency by absorbing and releasing heat slowly throughout the day, stabilising internal temperatures. This means it helps maintain a moderate temperature range inside the house by absorbing heat in summer to take the edge off those high temperatures and releasing heat slowly in winter to take the edge off low temperatures. 2. The soil used for rammed earth must be laboratory tested to ensure it is structurally suitable. In Steffen's experience in regional Victoria, there are usually quarries with appropriate soil located within a reasonable distance from most sites. A rammed earth contractor can assist with this process. 3. The rammed earth construction process is relatively simple and dates back over 10,000 years. Plywood formwork boxes are constructed and a rammed earth mix, of dirt, cement, water and potentially other admixtures is poured in and compacted with specialised equipment. At the time the Butterfly House was constructed, rammed earth walls comprised a single solid wall with a thickness of around 500mm. Now, rammed earth walls must include insulation. Their current composition involves an internal layer of rammed earth, a core of thermal insulation and an outer layer of rammed earth, resulting in an overall wall thickness of around 450mm. Alternatively, rammed earth can be constructed as a 200mm thick reverse brick veneer wall. 4. Rammed Earth offers numerous benefits, including thermal mass to stabilise internal temperatures, excellent acoustic qualities, high flame resistance, low embodied carbon and durability and a long lifespan, though it does require extended roof overhangs for protection from weathering. 5. The cost of rammed earth construction is about three to four times higher than that of standard 90mm timber stud frame construction. It's comparable to insulated cavity brick. And finally, 6. Considerations when using rammed earth include: understanding all the benefits and qualities of the material, being aware of regulatory issues. It's not covered in the Australian National Construction Code and requires a performance solution report, engaging the right expertise early, including a sustainability consultant, rammed earth contractor and structural engineer, and co-ordinating all services early in the process. INTERVIEW QUESTIONS[00:00] Introduction[01:00] Tell us about your practice and how you got started into sustainable design?[05:16] How did you get involved in Architects Declare[06:50] How did the brief evolve for a rammed earth house in this off grid location?[09:20] How do you find the right soil? [11:16] How are rammed earth walls constructed?[12:40] How thick are rammed earth walls?[13:48] How does rammed earth improve thermal comfort and energy efficiency?[16:16] How is rammed earth better environmentally than insulated cavity brick?[17:37] What is the environmental impact of cement in rammed earth?[20:04] How to you calculate carbon on your projects?[24:57] Can you tell us the next steps in the rammed earth construction process?[28:23] What are lower and upper floors constructed from in a rammed earth house?[30:11] Does rammed earth need protection from weathering?[32:06] Does rammed earth need to be sealed?[33:54] What are the benefits of rammed earth?[36:46] How does the cost compare to 90mm timber stud frame construction?[39:00] How does the construction time compare to standard construction?[39:42] What doors and windows did you use?[41:40] What materials did you use in the interior?[42:30] What other environmental choices did you use in this off grid site?[44:05] What advice would you give to anyone considering building with rammed earth?[45:50] Key Points Summary IN THE NEXT EPISODENext week we move on to our next sustainable design theme, Prefabrication. We'll explore cross laminated timber or CLT and investigate its use in a new prefabricated house located on a regional site in Akaroa in the mild temperate climate of east coast, South Island, New Zealand. I talk to architect Jae Warrander, a director at Makers in New Zealand. Makers is a collaboration between Makers of Architecture and Makers Fabrication. Jae gives us the inside story on his Akaroa Bach prefabricated House. RESOURCE LINKSSTEFFEN WELSCH ARCHITECTS WEBSITEProject Page (images) https://steffenwelsch.com.au/projects/butterfly-cost-effective-rammed-earth-house/PROJECT INFOKitchen Cabinets: Hoop pine plywoodLifecycle AssessmentESD Consultant: LID Consulting https://lidconsulting.com.au/LCA Tool: Etool https://e-tools.com.au/Rapid LCA software https://cerclos.com/products/rapidlca/ OTHER INFOWilliams Boag https://www.williamsboag.com.au/Denton Corker Marshall www.dentoncorkermarshall.com GET IN TOUCHIf you've got any comments or questions or there's any topic you'd like to know more about, please send me an email at hello@renovationcollaborative.com.au.
Transcribe →Renewable Materials: Affordable sustainable design and Durra Panel - Matt Delroy-Carr, MDC Architects
Sep 2900:54:53Tap to summarizeWould you love a sustainable home but think it's out of your budget? Well, think again. In today's episode, we continue exploring renewable materials and investigate the design of an affordable environmental home built using standard construction methods. It features Durra Panel internal wall and ceiling boards made from agricultural waste straw. Architect Matt Delroy-Carr, the director of MDC Architects, shares the story behind his Scarborough Sustainable House, located on a small suburban site in the beachside suburb of Scarborough in warm temperate Perth. Today we'll learn about;ideas for an affordable sustainable home, climate responsive design for warm temperate climates, the process, costs and benefits of using Durra Panel internal wall and ceiling boards in custom residential construction, and a wealth of insights and practical information drawn from Matt's extensive experience. Australian Architects can earn formal CPD hours by listening to these podcasts and completing an online quiz. MORE INFORMATIONFind everything you need on the Renovation Collaborative website. www.renovationcollaborative.com.auPODCAST Key points summary, timestamps and resource linksFREE RESOURCES Transcript edited into clear Q&A.CPD Australian architects can find more information on CPD, and COURSES Eleven easy to read courses demystifying the entire home design and construction process. KEY POINTS SUMMARY1. In this project, like so many others this season, the clients drove the environmental agenda and they were very well educated about environmental design and materials. This is what they were seeking and it's a fantastic brief for everyone to keep in mind: A floor plan sized to suit their needs that connected to a diverse and productive garden. Maximum thermal comfort for now and the future, A life cycle assessment to help understand and reduce their environmental impact and carbon footprint, and All within a modest budget. 2. To control costs, the strategy involved standard construction techniques combined with climate responsive design and environmental materials. This included:a single level design, a slab on ground floor, a trussed roof with flat ceilings throughout, a 90mm timber stud frame, external cladding in low maintenance, pre finished compressed fibre cement sheeting, and internal linings in Durra Panel. 3. Key strategies for achieving a maximum NatHERs energy efficiency rating in a warm temperate climate included: orienting the house toward the north, appropriately located and sized windows and shading to provide shade in summer, spring and autumn while allowing sunlight in during winter, andensuring effective ventilation. Also, double glazed, thermally broken, clear glass windows greatly enhanced the thermal performance. 4. Matt utilised a mix of thermal mass construction techniques throughout the house to stabilise the internal temperature. This included reverse brick veneer walls on selected orientations, exposed concrete slab floor and an internal double brick mass in the kitchen. It's important to note that all the bricks used were recycled. 5. Durra Panel is an internal wall and ceiling board product made from compressed wheat and rice straw waste with linings on both sides. The default lining is paper, but a range of lining board options are available depending on the application. Durra Panel offers a heap of benefits. It's cost effective, it's renewable, it reuses an agricultural waste product, it sequesters carbon, it's 100% biodegradable, it provides excellent thermal and acoustic insulation and it's very flame resistant. And finally, 6. Durra Panels are around 50mm thick and are screw fixed to a standard stud frame. The key item to note is that you can't have a flush finish like plasterboard. All panel joins must be covered with a timber batten or other cover strip. INTERVIEW QUESTIONS[00:00] Introduction[01:19] How did you get started in sustainable design?[02:55] What types of work does MDC Architects do?[04:38] How do people access your affordable house plan packages?[09:58] Tell us what your clients were looking for when they came to you?[12:01] Tell us about the Warm Temperate Perth climate?[15:58] How did you decide between 1 and 2 storey?[19:11] What where your strategies to keep costs down?[21:24] Tell us about your use of reverse brick veneer?[24:28] What strategies did you use to achieve a high NatHERS star rating?[25:35] What doors and windows did you use?[28:41] What external materials did you use?[30:03] Tell us about using a Life Cycle Assessment?[36:23] Tell us about Durra Panel?[38:26] How does Durra Panel construction work?[40:50] How does the cost of Durra Panel compare to plasterboard?[41:51] What environmental choices did you make in the interior?[43:30] What other environmental initiatives did you include on this project?[45:20] What are the key take away messages from this project?[47:34] What advice would you give to someone considering a sustainable home?[48:56] What advice would you give to someone considering using Durra Panel? IN THE NEXT EPISODENext week we move on to our next sustainable design theme, Earth Building. We'll investigate the use of rammed earth in the design of an affordable and very environmental new home on an off grid site located in Rutherglen in the hot, dry summer and cool winter climate of north eastern Victoria. I talk to Steffen Welsch, director of Steffen Welsch Architects, who'll give us the inside story on his Butterfly project. RESOURCE LINKSMDC ARCHITECTS WEBSITEProject Page (images) https://mdcarchitects.com.au/projects/scarborough-sustainable-house/PROJECT INFOInternal wall and ceiling linings - Durra Panel: https://durrapanel.com/Greywater system: https://www.greyflow.net.au/Life Cycle Assessment tool: https://cerclos.com/Internal timber finishes: Osmo Australia https://www.osmoaustralia.com.au/productsExternal cladding: CSR Barestone https://www.cemintel.com.au/product/barestone/Kitchen Cabinets: Hoop pine plywoodOTHER INFOMDC Architects - Farrier Lane House https://mdcarchitects.com.au/projects/homes/farrier-lane-carbon-neutral-home/Architect Glenn Murcutt 5 STAR REVIEWif you're enjoying my podcasts, I would love it if you would leave a review to help others find the show. Head over to www.ratethispodcast.com/renovationcollaborative and follow the simple instructions. Thankyou for listening! GET IN TOUCHIf you've got any comments or questions or there's any topic you'd like to know more about, please send me an email at hello@renovationcollaborative.com.au.
Transcribe →Renewable Materials: Hempcrete – Emily Knight, Emily Knight Design
Sep 2200:56:05Tap to summarizeHemp has been used in construction for thousands of years, but it's only recently that it’s incredible environmental benefits have crept into mainstream awareness. In today's episode, we continue exploring renewable materials. We'll investigate the design of a hempcrete extension to an existing Federation House located in the heritage listed suburb of Ashbury in inner suburban warm temperate Sydney. Architect Emily Knight, the director of Emily Knight Design shares the inside story on her AL House. Today we'll learn about;the process, costs and benefits of using hempcrete in custom architectural construction, how upgrading the thermal efficiency of your existing home is critical for creating environmental change, and a wealth of other insights and practical information drawn from Emily's extensive experience. Australian Architects can earn formal CPD hours by listening to these podcasts and completing an online quiz. MORE INFORMATIONFind everything you need on the Renovation Collaborative website. www.renovationcollaborative.com.auPODCAST Key points summary, timestamps and resource linksFREE RESOURCES Transcript edited into clear Q&A.CPD Australian architects can find more information on CPD, and COURSES Eleven easy to read courses demystifying the entire home design and construction process. KEY POINTS SUMMARY1. The biggest environmental change can be effected through improving existing buildings. Currently in Australia, there is no requirement to upgrade your existing home as part of your renovation. However, Emily always encourages her clients to set aside some budget for this important work to ensure long term comfort and energy efficiency. 2. Hemp is used in construction in a range of formats. Hempcrete, as covered in this episode, also hemp blocks, hemp sprayed onto a frame and hemp panels. 3. Hempcrete walls are non-structural. They're formed up around a timber stud frame.4. Hempcrete walls can be finished in a number of ways. They can be left unfinished, coated with natural breathing lime render, or a clear, penetrating, breathable sealer coat. Externally, it usually requires extended roof overhangs to prevent weathering. 5. In Emily's experience, the cost of Hempcrete construction in Sydney by a subcontractor was approximately on par with cavity brickwork. Historically, hemp buildings have been constructed by a community of unskilled friends and family, enabling much lower labour costs.6. Hemp offers a multitude of benefits: It delivers very healthy indoor air quality. It's very durable and has a long lifespan. It offers excellent acoustic and thermal insulative performance. It's very fire resistant, It can be made airtight, and It sequesters carbon and is biodegradable at end of life. INTERVIEW QUESTIONS[00:00] Introduction[01:21] How did you get started in sustainable design[05:21] How did you start building with hempcrete?[10:29] Is interest in sustainable design increasing?[12:03] What was the project brief?[15:13] Tell us about hemp?[19:00] How is a hemp building constructed?[21:51] How do the builder and hemp contractor work together?[23:59] Do hempcrete walls need finishing on the exterior?[25:49] Is hemp suitable in all climate zones?[28:56] What are the insulative benefits of hempcrete?[31:31] Did you test the airtightness of this house?[37:16] How is hempcrete tamped?[38:38] Is hempcrete cost effective?[40:52] Do hempcrete walls need finishing on the interior?[43:23] What other benefits does hempcrete have?[45:49] What doors and windows did you use?[47:58] What environmental materials did you use in the kitchen?[50:05] What advice would you give on building with hempcrete? IN THE NEXT EPISODENext week we continue our exploration of renewable materials. Next week we continue exploring renewable materials and investigate the use of Durra Panel in a new, affordable and very sustainable home located on a suburban site in warm temperate Perth. I talk to architect Matt Delroy-Carr from MDC Architects, who'll give us the inside story on his Scarborough Sustainable House. RESOURCE LINKSEMILY KNIGHT DESIGN WEBSITEProject Page https://www.ekd.com.au/al-house PROJECT INFOBuilder: David Anderson https://www.davidandersonbuilding.com/Hemp builders / contractors: Hemp Building Directory https://hempbuilding.au/Timber doors and windows: www.windoor.com.auAccoya https://windoor.com.au/about/accoya/Kitchen Cabinetry Red Block https://www.redblock.com.au/Paper Rock https://www.paperock.com.au/Made from layers of paper from renewable sources and bonded with phenolic resin and heat/pressure cured, Paperock is a remarkably strong composite building material.Furniture Linoleum OTHER INFOUniversity of Tasmania – Forestry Building Contractor: HansenYuncken https://www.hansenyuncken.com.au/project/utas-forestry-building/Architect: Woods Bagot https://www.woodsbagot.com/global-studio/news/progress/university-of-tasmania-forestry-building-to-feature-innovative-alternative-to-concrete/ Eve Laron Architects https://heritage.engineersaustralia.org.au/wiki/Person:Laron,_Eve_Mirjam 5 STAR REVIEWIf you are finding my podcasts helpful, please leave me a 5 star review on your preferred listening app to help others find the show.THIS LINK MAKES IT EASYhttps://ratethispodcast.com/renovationcollaborativeOpen this link on the device where you listen. Choose your preferred listening app and follow the easy instructions.Thankyou!GET IN TOUCHIf you've got any comments or questions or there's any topic you'd like to know more about, please send me an email at hello@renovationcollaborative.com.au.
Transcribe →Renewable Materials: Strawbale Panels & Biophilic Design – Talina Edwards, Envirotecture
Sep 1501:06:59Tap to summarizeIf you thought that straw bales were only for DIY backyard builders, think again. In today’s episode we move onto our next sustainable design theme - renewable materials.We’ll investigate the design of a new certified Passive House built from Huff’n’Puff SITUP strawbale wall panels. This house is located on an off grid site in the cool temperate Victorian high country. Architect Talina Edwards, a director at Envirotecture, shares the inside story on her Huff’n’Puff Haus.Today we’ll learn about: Biophilic design and our intrinsic connection with nature, Country and our planet The costs and benefits of using straw bale panels and their role in construction Strategies to achieve Net Zero carbon, andA wealth of insights and practical information drawn from Talina’s extensive experience Australian Architects can earn formal CPD hours by listening to these podcasts and completing an online quiz. MORE INFORMATIONFind everything you need on the Renovation Collaborative website. www.renovationcollaborative.com.auPODCAST Key points summary, timestamps and resource linksFREE RESOURCES Transcript edited into clear Q&A.CPD Australian architects can find more information on CPD, and COURSES Eleven easy to read courses demystifying the entire home design and construction process. KEY POINTS SUMMARY1. Biophilic design is linked to care for Country and an understanding that we are part of nature and intrinsically linked with our planet. If we don't care for Mother Earth, she can't keep caring for us. It's a reciprocal relationship of being present, responsible and caring. Like we take responsibility to care for our family. We feel better when we're outside in nature, but most of us spend around 80% of our time indoors. Biophilic design is about creating indoor environments that help us feel closer to nature and the outdoors through ideas such as plants, natural light, textures and materials. But it's critical to be very mindful of how our design choices affect the environment. Because remember, it's not only about what is good for us, it's a reciprocal relationship. 2. The primary driver for using straw bale panels is to create maximum wall insulation in colder or more extreme climate zones. Other benefits include being a renewable material, low embodied carbon and reuse of a waste product from the agricultural industry. 3. Huff n Puff straw bale wall panels are made from straw bales tightly fitted inside plywood box frames. The panels are typically 350 - 450mm thick, approximately 600 - 1200mm wide and 2.5 – 3m high depending on the project requirements and they're engineered to be load bearing. 4. Lime mortar or clay mortar can be used on the exterior or interior to seal the straw bales. Limemortar is a natural breathable material that is airtight but vapour permeable, meaning the building can sweat through it. If rendered externally, large eaves are critical to protect the external render from weathering. 5. Materials like straw bale and hempcrete are not in the building code, so additional consultant reports and engineering input is required. On this project, there were three structural engineers in total: the project structural engineer, the engineer from Huff n Puff for their SITUP panel system, and a third engineer to independently review and verify for the building surveyor. And finally, 6. The use of straw bale panels worked out time and cost comparable to custom builds based on the use of 140mm timber stud framing that Talina typically uses for colder climates. Note: 140mm framing allows for the additional thickness of insulation and is more expensive than 90mm stud framing and insulation used in the majority of Australia. INTERVIEW QUESTIONS[00:00:00] Introduction[00:01:17] How did you get started in sustainable design?[00:05:03] What is Biophilic design?[00:07:47] We are Nature – what does this mean?[00:10:57] Is interest and awareness and knowledge in sustainable design increasing?[00:12:03] What was the design brief?[00:13:29] What were the climate design objectives?[00:17:07] Why did you decide to build a certified Passive House?[00:18:52] How much mechanical heating and cooling is used?[00:19:34] Can you have an open fire or wood burner in a Passive House? [00:22:29] Had you built with strawbale before? [00:25:02] How did traditional strawbale evolve into strawbale panels?[00:30:28] Explain what strawbales panels are and the design and construction process[00:38:18] What are the challenges of using strawbale panels? [00:43:24] Does using strawbale panels save time and cost?[00:45:59] Are Strawbale panels suited to all climate zones?[00:48:42] What did you use for the exterior cladding?[00:50:13] What are the pros and cons of using lime or clay mortar?[00:53:41] What are the key considerations to achieve Net Zero carbon?[00:56:40] Where did you get your data to determine your carbon calculations? [01:00:27] What are the windows made off and where did they come from? IN THE NEXT EPISODENext week we continue our exploration of renewable materials. We'll investigate the use of hempcrete in the renovation of a Federation home on an inner suburban site located in Ashbury in warm temperate Sydney. I talk to Emily Knight, Director of Emily Knight Design, who will give us the inside story on her AL project. RESOURCE LINKSENVIROTECTURE WEBSITEProject Page (Completed images) www.envirotecture.com.au/projects/project/huff-n-puff-hausBlog Post (Construction images) www.envirotecture.com.au/resources/resource/strawbale-sit-up-panels-under-constructionLittle Pot of Gold research project https://www.envirotecture.com.au/projects/project/little-pot-of-gold PROJECT INFOStrawbale panels - Huff’n’Puff Constructions https://glassford.com.au/main/Exterior Cladding - Cemintel Barestone Cladding www.cemintel.com.au/product/barestone/Certified Passive House Doors & Windows - Logic House www.logikhaus.com.au CARBON CALCULATIONSAlex Slater, Building Physics Australia - Passive House Consultant & carbon calculations https://buildingphysics.au/Environmental Performance in Construction database, University of MelbourneThe EPiC Database is a comprehensive and consistent open-access Life Cycle Inventory of environmental flow coefficients for construction materials, containing over 1,000 embodied emissions, energy and water coefficientsNABERS Embodied Carbon Tool - www.nabers.gov.au/ratings/our-ratings/nabers-embodied-carbon OTHER INFORMATIONThe Living Building Challenge https://living-future.org.au/living-building-challenge/Sustainable House Day https://sustainablehouseday.com/Off Grid Festival - https://www.offgridevent.com.au/</a...
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