Green Homes News

Hi all! We live just outside Halifax, NS, Canada, climate Zone 6. We are putting up a new building, and I have a question about vapour retarders.Our wall buildout (interior-->exterior)…

ICON's innovative 3D-printed homes are revolutionizing construction for durability, energy efficiency, and aesthetic appeal, showcasing the future of sustainable housing.

Here is some feedback on Martin Holladay's January 2, 2026 blog "Removing Particulates from Indoor Air". The State of California maintains an online free search database of a wide variety of…

Most U.S. energy becomes waste heat—renewables change that equation.

I have plans for a timber frame structure on a slab. Is it possible to run romex in the loft -- over the t and g and structural joists, and…

With all of the rain, water is appearing in the basement. There are random puddles around and water is pouring out from between what I think is two layers of…

I'm looking at these 2 details from the library. The monolithic slab shows a vapor barrier above the insulation, wrapping around the footing. The second image with the non-structural slab…

Understanding window performance, durability, operation, and design to make the most of your window budget.

I read the comments, and the free part of the article headlined "New Zero Frost Heat Pump Designed to Operate Continuously in Arctic Conditions, TerraVis Energy’s AetherLux ZeroFrost units will…

Greetings - apologies if this is not the appropriate place to post this but I came here looking for a GBA directory of builders and couldn't find anything. I'm an…

TerraVis Energy’s AetherLux ZeroFrost units will hit Canadian markets later this year

Hi all, I'm designing and building an a-frame cabin in central Missouri. The cabin will be used intermittently throughout the year, best case for usage is 2-4 days at a…

Insulation without demolition—what’s the best, minimally invasive strategy to increase insulation in walls?

Really stumped by this. I have a handful of attic baffles that were installed as shown below. There is a large gap between the bottom of the baffle and the…

I'm planning use either XPS or EPS (reclaimed hopefully) for exterior insulation, but I am concerned about insect intrusion.  I'd love to use Mineral wool instead, but am trying to…

Any ideas what could be causing these large cold spots on thermal imaging? The picture shows the edge of an upstairs room. In the attic above, there is visibly plenty…

Hi,We have a 200 year old house in upstate new york that is 1400 sq ft between 2 floors, with a simple gable roof. We are redoing the roof, and…

A friend has a single-story house in climate zone 7 with an older, non-condensing natural gas boiler. The home is heated with hydronic baseboards on a single zone. There is…

Does anybody know how to determine the F-factor of a slab-on-grade with insulation on TOP?I'm trying to find/calculate the F-factor of the assembly shown in the attached image (with and…

Hi. I’m renovating a bathroom in Florida and I’m trying to make sure I’m not building a mold trap which is a common case down here. One wall of the tub…