Green Homes News

Good evening! I'm currently building a PGH in Massachusetts and in the process of installing my vapor retarder. I have double stud walls filled with 10" of cellulose, and I'm…

Hi Energy experts, I'm in the Seattle area, Zone 4c. I'm converting my garage into an entertainment space and am insulating the walls and ceilings of the garage. My master bedroom is…

I have a question about basement insulation. Zone 7A in Calgary, Alberta, Canada.Winter temperatures can swing from -40F to 40F in a day. Winter temperatures can be a -40F to -20F…

I'm insulating my attic floor in climate zone 4A.  Attic is vented with soffit and ridge.  I have 2x6 floor joists.  I was going to lay r-23 rockwool batts in…

I'm remodeling my forever/retirement lake house in climate zone 6/7 and trying to decide on vinyl or fiberglass windows.From research there are vinyl window companies that outperform, objectively speaking fiberglass…

Discover the future of online book publishing and self-publishing in India at the Delhi World Book Fair 2026 with Namya Press. As a global self-publishing and academic publishing platform, Namya…

Hello,Probably going to have to hire an architect to design dormers  to replace 2 north facing roof windows.I believe this option would also eliminate the need  to completely replace the…

This common area of air leakage is easy to address when building new—but much harder after the house is finished.

Across the West Coast, many homeowners are rethinking how and where they build, prioritizing stronger connections to the natural environment and lower-impact living.

Hi everyone,I’m designing an ADU in Climate Zone 6 (Portland, ME) and targeting Passive House level performance. I want to bring more daylight into the deeper interior spaces, but I’m…

We are building a new home in Minnesota. The builder put rigid foam on the exterior. We are wondering what would be the safest protocol for finishing the basement concrete…

I'm designing and building a passive house but without certifying it. In climate zone 4A with a 3' minimum tall crawl space. The following detail is my understanding of the…

I have a 7'x10' alcove in a downstairs room with an open patio above the alcove. The alcove ceiling (or patio floor) has 2x10 ceiling joists with 3/4" Advantech subfloor,…

Designing and building & obsessing our home in Zone 7A Edmonton Canada. Learned everything from you guys and hoping you can critique my plan.1700 sqft on main level and vaulted…

We're building in SE Wisconsin using 6 inches of Rockwool comfortboard for continuous exterior insulation on top of a self-adhered membrane (Adhero) for the exterior air barrier. We're using Intello…

Hello!I'm designing a small home with double studded walls and I was wondering how a Nanawall glass bifolding door jamb would attach to the wall, alongside the components of the…

I'm looking at the Nu-Wool site. Their Ecocell cellulose batts max out at 5.5" thick and R20.I'd like to get to R30. Are R30 batts readily available? Or is it…

Hello, Builder/owner considering the Panasonic spot Erv Fv-04VE1 for my 900 square foot new construction house in coastal Maine. Its a tight house, assuming under 1.0 ACH 50, and my…

Hi all,I'm about to start drywalling over my vapor barrier, and it occurred to me that a few "patch" pieces used in some cathedral ceiling corners do not have any…

Hello,I'm AndyI am located in southern Ontario, south of Ottawa. I've been trying to diagnose an ice dam issue on a home I built last year. There is a roof…