Green Homes News

Mortar touching sheating

Green Homes 2 - Thu, 2025-12-11 11:15
Hello. Climate 2 , 1980 brick veneer wall assembly. I discovered that the mortar in my exterior walls is about 80 percent in full contact with the interior fiberboard exterior…
Categories: Green Homes

Potential on-going off gassing of natural stone sealer?

Green Homes 2 - Thu, 2025-12-11 10:32
We are installing a variety of natural stone flooring, including terrazzo, slate, and marble.  It is our understanding that we will need a sealer for these areas, but would like…
Categories: Green Homes

Ventilation Controls: Meeting Code and Managing IAQ

Green Homes 2 - Thu, 2025-12-11 02:00
A step-by-step guide to selecting, wiring, and configuring residential ventilation controls
Categories: Green Homes

On mechanical ventilation in attics

Green Homes 2 - Wed, 2025-12-10 21:27
I’ve been thinking about this question since June, because at the start of the summer there’s always a lot of people complaining that the upstairs of their house is hot.…
Categories: Green Homes

Can spray foam insulation of rim joists lead to rot?

Green Homes 2 - Wed, 2025-12-10 15:51
My old 1915/1970 home has a basement and crawlspace and is located in 4C Marine. There is a mold issue, so I am going to hire a contractor to spray…
Categories: Green Homes

What to do with a small amount of mold in the attic/small stain on ceiling

Green Homes 2 - Wed, 2025-12-10 14:02
Hello, We live in Texas and have a vented attic (yes, I know it would be better to encapsulate, but can't do that right now for money reasons). I noticed this…
Categories: Green Homes

seal stud/framing joints for air tightness

Green Homes 2 - Wed, 2025-12-10 12:15
Hey all,We have an exterior air barrier of Prosoco MVP on exterior of sheathing, sealed at the bottom plate to the concrete with Prosoco Fast Flash and a 10" tape…
Categories: Green Homes

Soffit material recommendation – AC vs A/B/CDX

Green Homes 2 - Wed, 2025-12-10 11:59
Hey all, We are looking into alternatives to the LP Soffit material (3/8" thick).  Are eves are about 18", so we'll likely have to run any product we select through…
Categories: Green Homes

Exposed Exterior Foundation Foam

Green Homes 2 - Wed, 2025-12-10 06:20
We have 2” exterior foam insulation around our foundation. The way our home is designed, the 2×8 walls line up with the exterior foam insulation making it a flush surface…
Categories: Green Homes

How EcoFlats Achieves Phius Zero at Market Rates: Systems and Strategies

Green Homes 2 - Wed, 2025-12-10 02:00
EcoFlats at Log City pairs a low-carbon envelope with cost-effective HVAC, ventilation, and hot-water systems to meet Phius Zero goals without increasing rent.
Categories: Green Homes

Ice/Moisture behind insulation in unfinished tiny cabin

Green Homes 2 - Tue, 2025-12-09 22:30
Hello, my name is Stephen and I am new here. I am a Medevac Pilot by trade and off grid builder hack (at best) in my free time.  I live…
Categories: Green Homes

Climate Zone 4 Building Question

Green Homes 2 - Tue, 2025-12-09 15:13
I am building a Pretty Good House in Southern Missouri, Climate Zone 4a.I want to start off by saying I have read the Golden Article regarding the amount of rigid…
Categories: Green Homes

Venting an Attic (Hip Roof) with a Custom Chase

Green Homes 2 - Tue, 2025-12-09 13:45
Hi, I’m looking to get opinions on venting an attic by using a custom made chase. Climate Zone 6.It’s a 100 years old house with a hip roof and hip…
Categories: Green Homes

The Future of Sustainable Forestry Resides in Idaho

Green Homes 2 - Tue, 2025-12-09 02:00
The University of Idaho’s new Forest Innovations Institute wants to bring the U.S. into the 21st century with smart, digitized forestry practice
Categories: Green Homes

Advice on hiding uneven rowlock, contractor advised sealing

Green Homes 2 - Mon, 2025-12-08 20:27
We had a knee wall built with the original bricks from the home, but the rowlock bends up and down along the entire wall.The brick is also completely unlevel. I…
Categories: Green Homes

Air sealing attic in winter – possible to keep can warm?

Green Homes 2 - Mon, 2025-12-08 16:33
I live in Michigan and need to air seal my attic. Unfortunately it's going to be 20-30 degrees for the foreseeable future, which means cans of foam will very quickly…
Categories: Green Homes

Crawl Space Insulation for a 130-Year-Old Home

Green Homes 2 - Mon, 2025-12-08 02:00
Are there any alternatives to closed-cell spray foam?
Categories: Green Homes

Radon venting

Green Homes 2 - Sun, 2025-12-07 21:18
I’m retrofitting a radon vent into my 1 story house. I could go through an interior partition wall, but I would have to pack the wall put so it’s thick…
Categories: Green Homes

Air and water management at stud-wall to foundation wall transition, in setting of thick exterior insulation

Green Homes 2 - Sun, 2025-12-07 15:09
 Hello AllI am trying to find the best solution for this problem. Here is my external wall above foundation.2”x6” studs, then Zip 1/2”, then 3.95” Fiberglass Z-girts which will house 3”…
Categories: Green Homes

Screws for 2×4 sleepers through exterior roof foam

Green Homes 2 - Sat, 2025-12-06 11:40
I am planning a chainsaw retrofit and adding 5-6 inches of polyiso foam to the roof with 2x4 sleepers for vent channel.  The 2x4's lock the foam in place but…
Categories: Green Homes

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