Green Homes News

The IRC allows unvented roofs—but only under specific conditions. Here’s how to navigate the requirements and choose a compliant approach.

Hi guys. I recently bought a Victorian style home that was built in 2004. What baffles me is how the trim on the outside of the home is already deteriorated…

Hi all. New construction ADU. Climate zone 4C. Unvented, low slope roof, 2x8 ceiling joists, 5/8 plywood sheathing, Prosoco fluid applied full products system, 4 inches of  eps exterior insulation…

There is a post in the Q&A I think raises an important question I don't know than answer to.  https://www.greenbuildingadvisor.com/question/interior-insulation-of-unventilated-roof If the roof is not vented, but there is an…

Hello, I have an old cellar converted to a basement. I’m sure there is nothing modern about its assembly - merely concrete poured over the dirt. It has a sump…

A woman-led natural building project shows how craft, community, and sustainability can shape housing at Dancing Rabbit Ecovillage

I am working on an existing lake cottage in Massachusetts, Climate Zone 5.  The project needs to meet the stretch energy code and the client is interested in high-performance or…

A look at influential residential design books from the 1990s—and how they continue to shape good design today

Hi, I'm cutting the foam for my rim joist insulation and I noticed that I have a gap in between the end of my joists and the rim joist. The…

Hi All, Currently have an unvented roof in zone 6 Vermont with fiberglass insulation.  I want to put a new roof on but not before fixing insulation issues. I am…

Evening all.I'm working on a 1970s extension of a 1970s home. House is on bedrock, and the extension appears to be as well. The extension crawlspace is not part of…

Greetings everyone, I'm new here and planning to GC the construction of a new home on the property I already live on. I'm sure I'll be posting lots more questions…

Why “right-sizing” homes—not mandating small ones—may be the most effective path to low-carbon living.

We are having our corrugated siding put on currently and I'm just wanting to check on a detail to make sure it's ok. We have zip tape flashing around the…

I have a 4.5/12 open gable roof section that is timberframe truss supported with 2x6 t&g decking (exposed on interior). I am putting 6" of Comfortboard 80 above this, 2x4…

Morning all.I have been renovating a 1970s addition on my house from the inside. Zone 4 with damp winters.Current assembly is cedar siding, tar paper (probably #15), horizontal shiplap, tar…

I'm putting an addition on a house that has a "dropped" subfloor. The original floor joists do not sit on the stub wall. The exterior wall sill plate sits directly…

Researchers have developed new ways to use AeroBarrier to seal building envelope leaks

with a vented attic and blown in cellulose insulation should you add 3/4" self adhering rigid foam over the sheathing, before laying down an asphalt roof

Hey guys! Just a regular home owner here, trying to make improvements to my 140 year old Queen Anne home so it can last another 140. I'm in zone 5A.…