Green Homes News

I have an odd knocking sound in the wall. We’re in Houston, TX so very hot lately 95+. We though it was the temp change (thermal bubbles) when sun went…

This 50-100sf area above the kitchen is connected to the rest of the attic through baffles stapled under roof decking, but otherwise blocked off. I air sealed the top plates there,…

Air-to-water heat pumps use water, not air, to deliver heat. They're an emerging product we're starting to see more often. Here's how, and where, they work.

Hi, thank you for any advice.Roof assembly: Bottom to top-1/2" Sheetrock (Low Sag)- 2" air gap- 2x10 purlins @ 24" OC running perpendicular to roof slope  w/ 7.25" rockwool insulation…

Background: I am about to build a new, two-story house, with a full height basement in the Roanoke, VA area (Bedford County - Climate Zone 4A - Mixed Humid). It…

Colorado-based RIC Robotics’ solution to scalability is simple: standardize everything

Hello Green Builders Far and Wide,I'm residing a house in Climate Zone 6A (shout out to my 6A brothers and sisters). My new assembly is Blueskin VP100 WRB, 2" Timber…

Testing posting capabilities after spam filter fix.

Building an elevated home on pilings on the Carolina coast raises questions concerning moisture infiltration

This is not a question pertaining to "green building" per se, but I have an account here and respect the opinions of many users here, so here goes:I'm a contractor…

I am designing, and plan to build a home for myself in Washington Texas (Central Texas).  I have the floor plan drawn, but I need to get the assembly details…

Tldr: how to fill gap between soffit and exterior insulation to prevent insects?I just finished running 2" exterior iso on a gable end and some areas have a small gap…

Allison Bailes discusses the successes, mistakes, and ongoing improvements in his Atlanta home—from a poorly installed spray-foam attic to heat pumps, balanced ventilation, radon mitigation, and basement remodeling.

https://basc.pnnl.gov/videos/umn-northernstar-doe-building-america-exterior-foundation-insulationI'd never seen this before. Interesting approach. I wonder if there are alternatives to the spray foam, and I can't come up with any.

We have recently developed an issue in our vented attic where we have condensation and mold beneath the insulation, on top of the ceiling drywall. It’s soaking wet. There’s 3000…

We waterproofed the front entry/landing with a liquid waterproofing, then bonderized steel and went over it with liquid waterproofing before pouring the concrete landing/steps.  The bonderized flashing was carried up…

As homes become tighter and ventilation requirements more complex, the HVAC industry faces a growing problem: Nobody truly owns residential ventilation.

I am currently working on the thermal envelope design for a train maintenance workshop and have some doubts regarding the perimeter insulation strategy at ground floor level.The building includes both…

We’re renovating the basement of our 1926 house with block walls. Zone 5 (Nebraska). I was planning on 1” XPS against foundation wall, then 2x4 stud wall with the rock…

Working with a homeowner on a fully ICF house — walls, floor system, and roof are all ICF, not just the typical walls-only application. This is a large, one-of-a-kind project…