Green Homes News

Hi all,Building out in Nova Scotia. We have a frost-protected shallow foundation so the solution that I settled on was EPDM covering the skirt foam (acting as a ground gutter)…

I'm working on a project in a crawl space. Huge thanks to Malcom for advice in another thread on how I might add additional insulation.However, I am now facing an…

Maryland facility to manufacture MettleWood, a cellulose-based material said to be 80 percent lighter and 50 percent stronger than steel

Hi all, to my understanding nailbase roof exterior insulation manufacturers allow (in some instances insist) installing the nailbase fasteners directly to the plywood roof deck, with the screws driven ¾”…

I did a lot of specific and general searches and haven't found much of anything.The build location is at 8500ft in Colorado zone 5a, frost depth can be up to…

Hello,  I live in Montpelier Vermont and am renovating a 1880's house. the upstairs bedrooms have 3 regular walls and 1 that is the pitch of the roof. The pitched ceiling/roof…

I’m not qualified to comment on this but I thought the community might have someone with a basis for a more informed opinion:https://naturalrefrigerants.com/study-links-hfos-to-formation-of-super-greenhouse-gas-hfc-23/TL;DR: some common HFOs may degrade in the…

My house is from the 1980s and is a bit of an energy hog. I live in British Columbia - similar climate to Seattle. I've been chipping away at projects. This year,…

I'm trying to finalize the decision between an ERV and HRV for my home.  Would appreciate feedback on the approach below which I haven't seen used before.I found software called…

I've done some searching but haven't found any details on required minimum separation of two air intakes, one for a continuously running ERV (~100-120 CFM) and the second for a…

Greetings everyone, Chapter 4 of the IRC details the foundation size requirements for residential buildings with various wall types, soil types and roof loads. Table R403.1(3) appears to be the…

Hello GBA. We have a small section of unvented flat roof in our project and I am wondering if there is value in adding extra insulation inside because we have…

Hello all, I'm looking for some feedback on Superior Walls if anyone has used them?  We've finally gotten a few foundation quotes and Superior Walls has come in cheapest by…

My wife and I hope to purchase an induction range -- that is, a 30-inch-wide appliance that sits on the kitchen floor and includes an oven under the cooktop. I'd…

I have a 1953 Cape Cod, climate zone 4a. The first floor is uninsulated CMU with stucco exterior and 3/4" furring strips plus drywall interior. The attic has ~3" fiberglass…

Hello, I maintain a commercial hair studio that the tenants are often affected by hot air flow through the diffuser so I stuffed the duct with Roxul safe and sound to…

This is a very speculative question, so thanks for humoring it -- for air source heat pumps which use outdoor air, would there be any advantage to enclosing the intake…

Hello All,We are working on our slab-on-grade foundation.  We received quite a bit of rain and are projected to get more in the coming days.We have the radon barrier (StegoHome)…

I have an existing building located in Maine that was never insulated. The exterior is completed. The interior has no finish. Since I don't have the option of insulating over…

The Ephoca AIO Wall Mount Pro serves as a model for the potential of packaged heat pumps in electrifying multifamily projects