Green Homes News

Corrugated metal siding: Should we install a backer for electrical & pipe penetrations?

Green Homes 2 - 1 hour 4 min ago
We are installing vertically hung metal siding over Coravent rainscreen. Two questions:1. What is the best way to finish around pipes that penetrate the sheathing? We already have the pipes…
Categories: Green Homes

Summertime condensation with PERSIST roof

Green Homes 2 - Fri, 2026-01-16 20:20
I am planning to build a PERSIST style roof with only exterior rockwool insulation and an adhered air/vapor barrier like Grace Ice & Water Shield on the sheathing/decking immediately above…
Categories: Green Homes

Exterior Rockwool between WRB and polyiso

Green Homes 2 - Fri, 2026-01-16 18:16
Hello All: We are building our house with all exterior continuous insulation, nothing in the stud walls. We're in western NY State, zone 6. Our current plan for the wall layers…
Categories: Green Homes

How to insulate existing slab edge before new concrete porch

Green Homes 2 - Fri, 2026-01-16 15:07
My house is built on a slab that is uninsulated. All around the exterior of the house, it has a 6 inch wide section that is raised 4 inches above…
Categories: Green Homes

Insulating Outside the Crawlspace

Green Homes 2 - Fri, 2026-01-16 08:18
Hello,Reading a lot about crawlspace encapsulation tells me the optimal insulation of a crawlspace is on the outside.  Yet it seems every time encapsulation is discussed in detail, the insulation…
Categories: Green Homes

Smart recirculation can save water AND power?

Green Homes 2 - Fri, 2026-01-16 06:46
Ok, it's always been said, you can save  water, or power, but not both, and when I  installed my first hot water recirculating system I doubled my daily power consumption. But…
Categories: Green Homes

Tools we use: ACIN FlowFinder

Green Homes 2 - Fri, 2026-01-16 02:00
Tools used to measure air flows, from unscientific to the most accurate, including the ACIN FlowFinder 2
Categories: Green Homes

Exterior Concrete Wall Insulation behind Metal Siding

Green Homes 2 - Thu, 2026-01-15 17:27
I have a steel building that has a relatively tall (60") stem wall.  I trimmed out the bottom of the building to have a 3" drip edge under which I…
Categories: Green Homes

Replacing a Trane

Green Homes 2 - Thu, 2026-01-15 16:40
I have a 15 year old Trane XB13 that is too big and too small at the same time. At 35°F, it cycles because it's too big and at 30°F,…
Categories: Green Homes

Navigating a difficult new build

Green Homes 2 - Thu, 2026-01-15 14:35
Good afternoon,We recently moved into our new construction home this past August. Unfortunately, the build itself did not go as smooth we had hoped.We have been playing clean-up on many…
Categories: Green Homes

Hire contractor or hire architect for exterior insulation details?

Green Homes 2 - Thu, 2026-01-15 07:34
Hello, all. Any recommendations on how to plan and hire out exterior insulation installation as part of a whole house re-siding project? Hire an architect to draft details, hire design-build?…
Categories: Green Homes

Best spray foam insulation for 100-year-old home

Green Homes 2 - Thu, 2026-01-15 06:48
We will be finishing the attic in our 1930 house in Atlanta, GA this year (Climate Zone 3A, winters include multiple days in the 20s and summers include multiple days…
Categories: Green Homes

Can tile sit above where drywall terminates?

Green Homes 2 - Thu, 2026-01-15 06:10
We have an intello vapor barrier that slightly slicks out under the drywall at the bottom, this will ultimately be hidden by molding so not worried about this detail. But,…
Categories: Green Homes

Venting a Vented Rainscreen

Green Homes 2 - Thu, 2026-01-15 02:00
What are the advantages of a vented rainscreen cavity?
Categories: Green Homes

Critique my rafter insulation plan

Green Homes 2 - Wed, 2026-01-14 09:44
Planning a cabin build in northern Wisconsin.  Climate zone 7a.  About 830 SF total.  A 16' x 32' portion will be rafter framed with a loft over about half of…
Categories: Green Homes

Wildfire Resilience – Rebuilding After the Fire

Green Homes 2 - Wed, 2026-01-14 02:00
After losing their home in a 2020 wildfire, this Oregon couple rebuilt with Passive House performance and wildfire-resilient detailing
Categories: Green Homes

Please Sanity Check My Manual J

Green Homes 2 - Tue, 2026-01-13 17:36
I'm planning to install A/C into a 1920's two story home in NJ.  It has steam radiators so this will be used primarily for cooling, though I may as well…
Categories: Green Homes

Vapor retarder on shower walls?

Green Homes 2 - Tue, 2026-01-13 15:21
Hi,I'm building a new home. I had a fair bit of hemp insulation left over so decided to insulate all my interior walls as not only a way to use…
Categories: Green Homes

Basement Wall Assembly & Insulation Clarification

Green Homes 2 - Tue, 2026-01-13 10:33
I am in the beginning stages of designing the basement for development.  Calgary, Alberta. The home is 3 years old, per code the basement comes finished rough, which means 2x6…
Categories: Green Homes

Finishing Attic – Insulation Plan

Green Homes 2 - Tue, 2026-01-13 09:52
Hello -We're finishing the attic in our 100-year old colonial. The ancient roof was just replaced and we installed GAF Intake Pro Rooftop Intake Vent (we couldn't do soffits because…
Categories: Green Homes

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