Green Homes News

Fresh air intake duct and whole system air purifier

Green Homes 2 - Tue, 2025-07-08 20:43
 https://imgur.com/a/d873qBcAbove is a picture of my current attic with my furnace as well as a basic diagram of my plan for visualization.House details:Two-story house, approximately 2,500 sq ft, built in…
Categories: Green Homes

Insulation in an attic

Green Homes 2 - Tue, 2025-07-08 14:41
I am trying to insulate an attic room in a one hundred year old house.The roof rafters are 2x 4s that are actually 2 x 4,5 inches of rough cut…
Categories: Green Homes

Treatment of structural slab over conditioned space

Green Homes 2 - Tue, 2025-07-08 09:10
Hi, I am currently starting a build that included a portion of a building with a composite concrete deck over a basement conditioned space. As of our current design, we would…
Categories: Green Homes

Zero-Waste Veneer Alternative Enter US Markets

Green Homes 2 - Tue, 2025-07-08 02:00
Belgian company Unilin expands distribution of versatile Master Oak product, made from recovered wood and renewable energy
Categories: Green Homes

Mass timber panels as heat exchangers?

Green Homes 2 - Mon, 2025-07-07 20:55
I came across this research project (https://ruralstudio.org/category/current/breathing-wall-mass-timber-research/) and paper (https://www.frontiersin.org/articles/10.3389/fbuil.2020.606258/full) detailing the use of mass timber in walls as heat-exchangers, in the stead of traditional insulation and HVAC techniques. It…
Categories: Green Homes

Combustion air for gas water heater

Green Homes 2 - Mon, 2025-07-07 20:13
I have a Bradford White RG2PV75H6N19 Power vent gas water heater installed in a basement (climate zone 5A). It looks like the combustion air is coming from a duct that…
Categories: Green Homes

Heat pump specification at cold outdoor temps

Green Homes 2 - Mon, 2025-07-07 13:52
Can someone explain what this table means "Heating Capacity for Standard Condition" for a Daikin VRV?  The contractor is using it to say that for example the first line: at…
Categories: Green Homes

Air barriers inside duct chase

Green Homes 2 - Mon, 2025-07-07 10:47
We have a couple of chases where ducts will be running through, and we are confused about air barriers in those locations. One is a dryer duct running through our…
Categories: Green Homes

Capillary break for reverse brick ledge

Green Homes 2 - Mon, 2025-07-07 07:11
Our builders are using a reverse brick ledge for recessed trusses (as pictured). They are planning to use a sill seal on the two horizontal surfaces, but I’m wondering if…
Categories: Green Homes

Hydronic baseboard vs infloor

Green Homes 2 - Mon, 2025-07-07 06:48
We are just starting our build and the plumber has realized our original water heater planned will not fit in the mini basement height. He is suggesting a switch to…
Categories: Green Homes

Finally, Smart Thermostats for Room ACs and Minisplits

Green Homes 2 - Mon, 2025-07-07 02:00
Third-party connected thermostat alternatives can help modernize point-source air conditioners and minisplit heat pumps
Categories: Green Homes

Patching spray foam on basement rim joists

Green Homes 2 - Sun, 2025-07-06 20:29
What's the best product to use to patch spray foam defects on basement rim joists? Closed cell spray foam was applied to the rim joists, but there are now some…
Categories: Green Homes

Insulating 3rd Floor Living Space w/ Slate Roof

Green Homes 2 - Sun, 2025-07-06 16:53
We are in the early stages of renovating a 1906 brick four square in St. Louis. We are in climate zone 4. It has a slate roof that was newly…
Categories: Green Homes

Brink vs Zehnder 3″ duct, manifolds & attenuators

Green Homes 2 - Sun, 2025-07-06 13:25
Does anyone have firsthand experience with compatibility between Brink & Zehnder 3"/75mm semi rigid duct / comfotube?I want to use the Zehnder Q600 unit because I feel like it is…
Categories: Green Homes

Retrofitting a fresh air intake duct and whole system air purifier with my existing HVAC system.

Green Homes 2 - Sun, 2025-07-06 12:42
 https://imgur.com/a/d873qBcAbove is a picture of my current attic with my furnace as well as a basic diagram of my plan for visualization.House details:Two-story house, approximately 2,500 sq ft, built in…
Categories: Green Homes

Details of garage ceiling – air sealing, insulation, and condensation management.

Green Homes 2 - Sun, 2025-07-06 09:39
Hi AllThanks for your time in advance.I am building an unconditioned attached garage, around 1050 sq feet. The climate zone is 5A. A continuous zip 7/16” sheathing will separate house…
Categories: Green Homes

Water catchment : order of components

Green Homes 2 - Sun, 2025-07-06 08:37
Hello, I am designing and installing a diy water catchment system for my house in Maine. The 700 gallon tank will be inside, due to frost, and I know what…
Categories: Green Homes

conditioned attic

Green Homes 2 - Sun, 2025-07-06 07:38
I am building a new 2 story 2300 sq ft home. There is a very large attic space above part of the first floor living area. The builder  plans on…
Categories: Green Homes

Economical approach to IRC2021 compliant wall insulation

Green Homes 2 - Sun, 2025-07-06 03:01
See the attachment - Here are two (of several) ways to meet the IRC2021 and IRC2024 wall insulation requirements (zones 4-8). 1. Mooney Wall2. 2x8 framing3. A third closely related…
Categories: Green Homes

Can a rigid foam ceiling be left exposed in detached garage?

Green Homes 2 - Sat, 2025-07-05 13:53
So in my 2 car detached garage thinking about an unconventional approach. Can I lay rigid foam on top of the rafters and leave exposed? Not talking about cut and…
Categories: Green Homes

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