Building Science - ecoEVO design

tightBRIDGE and tightPLATE is here.

Johnny K — Sun, 06 Apr 2025 05:31:49 +0000

In this video, we explore how to address air tightness and moisture management requirements for the National Construction Code (NCC) in Australia with minimal changes. Discover the new Efficiency Matrix developed for residential top and bottom wall detailing, which includes innovative products from Tighthouse.com.au and Proctor’s game-changing High Tack Plus air tight tape. Key Highlights: NCC Compliance: Learn how to meet air tightness and moisture management standards with ease. Efficiency Matrix: Detailed insights into top and bottom wall detailing for residential buildings. Innovative Products: Introduction to two newly developed Australian-made products by Tighthouse.com.au: tightPlate™: A cutting-edge solution for enhancing air tightness at the top of residential walls. tightBRIDGE™: An advanced product designed to improve air tightness at the bottom detailing of residential walls. High Tack Plus: Explore Proctor’s revolutionary building envelope air tight tape. Join us as we delve into practical solutions that enhance your building’s performance while ensuring compliance with the latest standards. Don’t forget to like, comment, and subscribe for more updates!

TightBridge™600mm – for building Air Tightness – Tight House

TIGHTPlate™ PE Foam Gasket – for building Air Tightness – Tight House

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Winter survival guide for renters for a more comfortable home.

Johnny K — Mon, 24 Jun 2024 03:00:21 +0000

In this video, we delve into practical methods to temporarily make your rental home more airtight and reduce thermal bridges caused by an inactive evaporation cooler system. We cover various air leakage points, such as ducted heating returns, gaps around heating boots, and wall ventilation, highlighting their impact on energy efficiency. Addressing a poorly designed and modified ducted heating system, we demonstrate retrofitting draught stoppers to enhance its functionality.

Finally, we reveal blower door test results before and after these improvements, showcasing the effectiveness of our approach in creating a more energy-efficient living space.

#airtightness

#rental

#beingcomfortableathome

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Roof Colour – We answer your questions

Johnny K — Mon, 24 Jun 2024 02:51:51 +0000

A roof’s colour can significantly impact its temperature, affecting the interior temperature of the building and overall energy consumption. This relationship between roof colour and temperature is primarily due to how different colours absorb or reflect solar radiation. Here are some critical points on the benefits of a cooler roof: 1. Energy Efficiency Cooler Roofs Reflect More Solar Radiation – Lighter-colored roofs, often called “cool roofs,” reflect more sunlight and absorb less heat than traditional dark-coloured roofs. This can reduce the roof surface temperature by up to 50 degrees Fahrenheit. Lower Energy Costs – Cool roofs reduce the need for air conditioning by reflecting more solar energy, leading to lower energy bills. In hot climates, this reduction in energy demand can be particularly significant. 2. Improving Comfort Reduced Indoor Temperatures – Buildings with cooler roofs have lower internal temperatures, which can improve occupants’ Comfort, especially in buildings without air conditioning. Mitigation of Urban Heat Island Effect – Cool roofs help mitigate the urban heat island effect. In this condition, urban areas experience higher temperatures than their rural surroundings due to human activities. This can improve overall city living conditions. 3. Sustainability and Environment Decreased Greenhouse Gas Emissions – By reducing the need for air conditioning, cool roofs reduce greenhouse gas emissions from power plants.

Extended Roof Lifespan – Cooler roofs can also contribute to an extended lifespan, as the materials degrade more slowly when not subjected to extreme temperatures. Solar – Less heat equates to Fewer failures with solar systems and arguably more energy output. The benefits of a more excellent roof are extensive, from significant energy savings and increased Comfort for occupants to broader environmental benefits. Selecting roofing material and color with a view to maximizing reflectivity can vastly improve the immediate living or working environment and contribute to broader climate change mitigation efforts. As awareness of these benefits grows, more homeowners and building operators are considering excellent roof solutions for their properties.

#coolroof

#ceramiccoating

#zincalume

https://www.abc.net.au/news/2024-03-26/heat-trapping-dark-roof-cost-extra-electricity/103631672

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Is Your Ducted Heating System Not Heating Your Home?

Johnny K — Fri, 09 Jun 2023 01:58:06 +0000

Ducted heating systems use air ducts to distribute heated air throughout a building. The return air plenum via the ceiling in this video is responsible for circulating the cool or heated air back to the air conditioning system to be re-conditioned. The return air ducts must be airtight in the wall plenum to ensure the system operates efficiently and effectively. In this video, the return air duct was too short and needed to be extended in order to make it air-tight a little lower down inside the return cavity. Several negative consequences can occur if the return air ducts are not airtight. Firstly, air leaks can cause the system to lose efficiency and pressurize your home as heated air escapes from the ducts before it can be circulated throughout the building. This can result in poorer indoor air quality, increased energy consumption and higher utility bills. Secondly, leaks can allow unfiltered air from the roof space to enter the system. This can lead to a buildup of dust and allergens in the ducts, which can be circulated throughout the building and cause health problems for occupants sensitive to these particles, especially asthmatics. To avoid these and other problems associated with air leaks in ducted heating systems, the return air plenums in wall cavities and ducts must be appropriately sealed and airtight. This can be achieved using Air barrier tapes, XPS boards, caulk products and other sealing materials explicitly designed for ductwork mechanical systems.

#Ductedheating #heating #energyefficiency

Air Tightness products https://tighthouse.com.au

Air Tightness testing https://efficiencymatrix.com

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Draft Stopper Performance Testing

Johnny K — Wed, 26 Apr 2023 04:54:34 +0000

Draught stopper, are not all equal, when it comes to retrofit.

To buy our Draught Stopper. Click here.

Exhaust draft stoppers, also known as vent draft stoppers, are devices used to prevent cold air from entering through the exhaust duct of a home’s heating or cooling system. Their effectiveness depends on the specific design of the draft stopper and the exhaust system that is installed in your home. Some exhaust fans cannot move sufficient air when they are restricted with air flow from a closed door.

If properly installed, an exhaust draft stopper can prevent drafts and improve energy efficiency by keeping cold air out of the duct system. This can lead to lower energy bills and reduce the workload for the heating or cooling system.

However, it is important to note that exhaust draft stoppers may need to be removed periodically for cleaning and maintenance to ensure the system is working efficiently. Also, some models may require careful installation to prevent damage or improper sealing, which could lead to leaks or even damage to the heating or cooling system.

Overall, exhaust draft stoppers can be an effective solution for reducing drafts and improving energy efficiency in homes. As with any product, it is best to research and choose a reliable and high-quality draft stopper that is compatible with your specific heating or cooling system.

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Double Glazing! The Little known Truths.

Johnny K — Fri, 22 Jan 2021 02:33:51 +0000

Not all double glazing can be treated equally, and in this video we talk about the spacing in glazing, the foam spacer that is used, and the gas that goes in between the panes of glass. Its all important, when considering the windows that go into your home. The content of this video is based on the climate of Melbourne, Australia, which may not be suitable for your location. #windowglazing #buildingperformance https://blueskywindows.com.au/ https://efficiencymatrix.com/

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Going down the path of Passive House

Johnny K — Fri, 11 Sep 2020 19:00:12 +0000

GLUX Builders, taking on an ambitious passive house build in Melbourne Australia, working hand in hand with the architect, to ensure this building achieves the airtightness and the insulation consistency it needs to become a passive house certified home. In this video, we talk about some of the difficulties in building for high performance and the differences between commonly constructed homes.

Builder: GLUX Builders https://gluxbuilders.com.au/

Architect: David Halford http://www.passivhausdesign.com.au/

Blower Door Tester: Efficiency Matrix https://efficiencymatrix.com

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Common Sarking or High Performance Wall Systems by Proclima?

Johnny K — Sat, 29 Aug 2020 04:06:43 +0000

Foil sarking is a commonly used product for wrapping Australian homes, in this video we cover the reason why we wrapped homes. The reason why foil sarking (radiant barrier) became a common product used in Australian construction, and why we need to transition away from these products, and more to higher quality products that are based on sound building physics principles.

* Reducing moisture content in wall cavities,

* reducing air flow in wall systems, and increasing insulation performance,

* while providing a services cavity that assists services to be installed without effecting building performance.

This video covers all these important concepts, for better performing wall systems in Southern Australia and Northern Australia.

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Losing Comfort From Your Ceiling Attic Hatch

Johnny K — Tue, 25 Aug 2020 04:22:34 +0000

Manholes into the attic/roof void can leak a lot of air and they can also account for a significant area of uninsulated surface on your ceiling. In this video we talk about the solutions for a better and more easy to use man hole, that complements a home for air tightness and insulation completeness.

Foam: XPS Foam Board 1200mmx600mm

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Sucking the comfort out of your home via internal walls

Johnny K — Mon, 10 Aug 2020 02:00:26 +0000

This is a common problem in homes built up to the 1980’s with connectivity to a cold subfloor and roof. The floor stops and starts to internal walls, and back at this time we didn’t use concrete slabs. This problem could be affecting the comfort and health of your home. Air infiltration through internal walls in your home can negatively impact significantly, building performance, especially considering the huge surface area of internal walls inside homes. Mark Pohlner from Efficiency Matrix covers some of the finer details of how this problem is contributing to building performance degradation and an explanation of how this problem can be reduced.

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