Green Homes News

I’ve seen mixed information about MR (moisture resistant) drywall such as Certainteed’s MR Tech. A few questions. 1. Thoughts on installing it in a ceiling in a 2 story Cape Cod kitchen…

Hello, I'm in the process of re-insulating and cleaning up an addition crawls space.   I attached a diagram of the layout and will add photos later.   The climate zone is…

Our walls are 2x8 thick and all have been insulated with R30 Rockwool batts. We had originally planned to stuff rockwool into the door gaps, but most spacing is around…

Our basement will be a finished and conditioned crawl space. The whole house air system is connected throughout this space. Our home uses blown-in cellulose in the attic and rockwool…

The desire for exterior insulation is complicated by overhangs and bay windows

Hi Everyone,I’m starting design and builder interviews for a custom home in Oakland County, MI (Climate Zone 5A) — a 1-acre clearing on a heavily wooded 15-acre parcel. The goal…

An excerpt from a Fine Homebuilding article states:Two-story homes usually have another ring of rim joists above the first-floor ceiling. If you need to insulate these rim joists, it’s best…

I'm building an addition on my house, on top of a concrete slab. The general plan is to use 3.5" xps, 3/4" osb, then hardwood flooring. I'm building a frame…

We are building a conditioned unvented attic with Roxul insulation at the roof deck. We have a portion of attic which is over an outside porch - should there be…

Hello everyone!I would like to open some discussion about a cabin roof assembly that is currently being built in my area. I know it has "holes" (literally) in it and…

Hello!  We have received a quote for 21" of blown-in cellulose for our attic (Central VT).  This is from a meticulous company who will make sure every nook and cranny…

Hello all, we are building a home in zone six, slab on grade. Builder wants to use a superior walls, precast, for the frost wall.  Not knowing how we would…

I have some doubts about the effectiveness of vapor variable membranes such as intello and similar products. My concern is in winter with a warm humid interior such as a…

Although we know how to build healthy, comfortable, durable homes, mostly we don’t … but not because it’s too expensive

Insulating a metal building with metal studs on a metal trailer bed and a metal exterior. Figuring out insulation is driving me insane. thermal bridging, air gaps, vapor barriers. I…

Hello, I'm trying to work through a plan for my garage and sealing it up. The previous owner built somewhat of a frankensteins monster with a garage that then had…

The first post of a new series from Passive House Accelerator's founder, Michael Ingui

First time posting on something like this so please bear with me. In central Kentucky, climate zone 4A: 2 story 1984 Cape Cod style home with perforated foil faced foam…

We have designed a house for climate zone 7 in Wyoming. To prevent any thermal bridging we are going to wrap the exterior walls and roofs with two layers of…

I bought and moved (yes, moved) a house earlier this year my property and the builder/owner spray-foamed the bottom side of the sub flooring to keep it warm during the…