Green Homes News

Grace ice and water shield on the wall corners?

Green Homes 2 - Mon, 2025-10-13 17:37
OK .... long story but with luck a simple question.Can I (or should I) put a piece of Grace Ice and Water Shield (say 6" each way) on the corners…
Categories: Green Homes

Air sealing unventilated cathedral ceiling wall-to-roof transition

Green Homes 2 - Mon, 2025-10-13 13:41
The layers of my roof assembly are:80 mil PVC membrane OVER 1/4" fire protection fiberglass-faced gypsum board OVER tapered EPS over 1/2" plywood over 16" OC joists w/insulation batts (and…
Categories: Green Homes

Best Solar Generator for Home Backup | Expert’s Choice

Green Homes 2 - Mon, 2025-10-13 09:24
I researched the best solar generator for home backup over the past few days because I am looking for a reliable power solution during outages. I went through reviews on…
Categories: Green Homes

Low voltage underground conduit

Green Homes 2 - Mon, 2025-10-13 08:42
I'm looking to trench in about 800' of conduit for communication cables - phone, Internet, cable TV.  This be a straight run from the street, through farm field, to my…
Categories: Green Homes

Cold joint gap between basement foundation walls

Green Homes 2 - Mon, 2025-10-13 07:47
I’m in the process of building an addition to my existing house, which includes a new foundation/basement wall abutted to the existing basement/foundation wall. The two walls were tied together…
Categories: Green Homes

Warm roof R-value (performance vs prescriptive)

Green Homes 2 - Mon, 2025-10-13 05:01
Two questions: 1.  In climate zone 6b/7, a warm roof for an unvented cathedral ceiling of R49 is recommended to prevent ice dams (assuming a properly designed and constructed roof). …
Categories: Green Homes

The Structural Implications of Rooftop Solar

Green Homes 2 - Mon, 2025-10-13 02:00
What to Expect When Installing PV Panels on Your Roof
Categories: Green Homes

Wall Assembly

Green Homes 2 - Sun, 2025-10-12 22:17
Hi everyone,I am currently working on the design of an ADU located in Portland, Maine, which is in Climate Zone 6. I would appreciate some feedback on whether my proposed…
Categories: Green Homes

Structural question: Rafter bearing limits with hidden gutter and no overhang

Green Homes 2 - Sun, 2025-10-12 11:59
Hi everyone! I’m currently working on a project based in Portland, Maine, where I’m designing an ADU I’m planning to do a slanted roof with no overhang and hidden gutters. Because of…
Categories: Green Homes

Polyiso Basement Insulation

Green Homes 2 - Sun, 2025-10-12 11:50
What is the current recommendation for or against using foil-faced polyiso on the interior of basement walls? I know the concern with polyiso is its tendency to deteriorate when exposed…
Categories: Green Homes

Why do ground loop preconditioners not dehumidify?

Green Homes 2 - Sun, 2025-10-12 08:27
I'm wondering if anyone with HVAC background can weigh in.The topic here is preconditioning fresh air with a ground loop preconditioner, versus an earth tube.For a midwestern climate, with hot…
Categories: Green Homes

Wall assembly

Green Homes 2 - Sun, 2025-10-12 05:33
We are designing a pretty good house in Wisconsin  and our wall will be masonry or siding/ furring/mineral board/ Henry blue skin/ plywood/mineral wool/intello/gypsumWe won’t have a service cavity. Whats…
Categories: Green Homes

Cut & cobbler before spray foamers to save on some board feet

Green Homes 2 - Sat, 2025-10-11 19:07
So I ripped a late 1800’s early 1900’s house to the studs in Massachusetts climate zone 5. Doing a full gut and remodel and finishing the attic space as livable…
Categories: Green Homes

How should the timber framing for the walls connect at this corner?

Green Homes 2 - Sat, 2025-10-11 14:55
Hello! I am currently working on a project and I am trying to figure out how the framing of this building should connect between these three walls. They connect at…
Categories: Green Homes

Ridge vent

Green Homes 2 - Sat, 2025-10-11 14:53
Should the roof ridge be cut the entire length of the ridge? If I take the square footage of the attic floor and balance the ventilation using 1:300, I come…
Categories: Green Homes

Durability of T&G Ceiling in Shower Area?

Green Homes 2 - Sat, 2025-10-11 09:55
Hi everyone,I'm hoping to get some advice on our bathroom ceiling assemblies for our new build. We're planning to run Hemlock T&G across the ceilings in both of our bathrooms…
Categories: Green Homes

Need advice on insulating knee wall attic

Green Homes 2 - Sat, 2025-10-11 07:16
In the middle of a project to redo a bathroom which is next to a knee wall attic. The roof is over the knee wall attic. Access to the crawlspace…
Categories: Green Homes

Panasonic Intellibalance ERV boost wiring

Green Homes 2 - Fri, 2025-10-10 17:05
Hello!We are installing a FV-20VEC1 Panasonic intellibalance in the basement of a 3 story home with 7 bathrooms. Originally the plan was to have constant CFM for each bathroom, but…
Categories: Green Homes

Window over kitchen sink

Green Homes 2 - Fri, 2025-10-10 10:32
A framing question for you. A lot of designs have windows directly in front of kitchen sinks, which necessitate a header (lintel in Canada) and king and several jack studs on…
Categories: Green Homes

Replacing an oil boiler

Green Homes 2 - Fri, 2025-10-10 09:40
I have a ~3300 square foot house in upstate New York, so climate zone 5.  When we moved in, the house had an oil boiler for baseboard heat and hot…
Categories: Green Homes

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