Green Homes News

We are renovating a 1914 bungalow in coastal Maine. The house is currently opened up to the studs, so we are making final decisions about insulation and air sealing. I’m…

I'm working on an exterior remodel of an old 1940's house in zone 6B. We are removing old vinyl siding, the putting up new housewrap -> some new windows ->…

I have a gable-vented attic and recently installed a new roof on my 1937 Cape Cod home.In the kneewall areas, I applied closed-cell spray foam (SPF) to the underside of…

How the 2024 IRC allows certain foam insulation systems to double as water-resistive barriers—and what that means for wall design

Hi, I'm in climate zone 4B to 5B (right on the line), and planning out a house that I'll be building.  I am pretty new to designing for cold and assuming…

Building a new home this summer in Southcentral coastal Alaska, zone 7. We average about 25" of rain and 4' of snow each year give or take, heating about 8…

I installed WRB late last fall, and managed to get it mostly covered with tarps within 2 months (mfr states it is rated for 6 months of exposure but recommends…

The walls of this old house are currently insulated with 1” XPS cut-and-cobbled to sit against the plank sheathing. An air barrier is established at the XPS with sheathing tape…

I know its best practice to use a  dimple matt on the exterior basement walls, but i dont really want to buy something if its not value added. Just finished…

We have a customer that we are installing a new roof for. The roof will be stone coated steel shingles. We are in climate zone 6. The customer would like…

The GBA article on installing an ERV/HRV (https://www.greenbuildingadvisor.com/article/installing-an-erv-or-hrv) says "Indoor air is typically pulled from bathrooms, the kitchen, and the laundry room".  Allison Bailes #1 rule on installing an ERV…

They’re a good start, but keeping your house dry and free of rot may require more than just drainage

I have a 1975 home in zone 4C that has 1000sf of cathedral ceiling with 2x8 framing with insulation more of less filling the cavity.  the attic space around these…