Green Homes News

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

Installing ceiling OSB on crooked bottom chords

Green Homes 2 - Tue, 2026-01-13 07:19
I am getting ready to install the ceiling OSB in my workshop, and have noticed that some of the bottom chords are very crooked. I haven't measured, but by eye…
Categories: Green Homes

What to do with an unused, shared, chimney?

Green Homes 2 - Tue, 2026-01-13 05:12
Hi!I’m Leib, and I’ve been trying to figure out what to do with a chimney that I can’t remove.The house is in New York City (zone 4), and is built…
Categories: Green Homes

Natural Building at Scale: Lessons from Dancing Rabbit Ecovillage

Green Homes 2 - Tue, 2026-01-13 02:00
In rural Missouri, fifty residents are showing how shared infrastructure and ecological building can reshape both housing and community life.
Categories: Green Homes

VDP with no “mechanical ventilation” in Unvented Cathedral (No Attic)

Green Homes 2 - Mon, 2026-01-12 18:20
Hi All,I am trying to understand IBC 5.2.9 "Where only air-permeable insulation is installed directly below the structural roof sheathing, air shall be supplied at a flow rate....etc etc.Does this…
Categories: Green Homes

Gap in fiberglass insulation in steel building wall cavity

Green Homes 2 - Mon, 2026-01-12 17:24
Hopefully a quick question:I have a steel building with steel girts and purlins.  I already have 1" continuous XPS on the outside of the wall, but figured I would fill…
Categories: Green Homes

Cross Battens vs 3d Mesh – Standing Seam (or, shingles)

Green Homes 2 - Mon, 2026-01-12 15:50
Hi All,Does anyone have opinions, experience, or data regarding the pros/cons of putting a cross-batten grid of ~a few inches, vs. a much tighter 'air gap' using a product like…
Categories: Green Homes

Double Stud Walls- Insul at Exterior Cavity Only?

Green Homes 2 - Mon, 2026-01-12 15:13
Our client asked for deeper-than-typical interior window sills so we're adding a 2x4 wall to the interior of the structural 2x6 walls. By code, R-21 batts in the 2x6 wall…
Categories: Green Homes

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