Green Homes News

I've just replaced windows and insulated my attic, but my energy bills are still very high, and I am thinking about getting home energy audit. I have no clue as…

GBA connected with homebuilding pros to learn their methods for staying afloat and navigating times of economic volatility

Hi everyone,I recently moved into a home built in Apr 2026 in the Minneapolis area and am planning to finish the walkout basement. I've put together a wall section drawing…

I recently noticed an area behind a hvac duct that did not have any spray foam installed on it when the house was originally built. The missing spot is on…

We have the exterior shell built for our new home and starting to construct wall and ceiling service cavities and then interior walls.  I'm trying to understand how best to…

I'm working on a project with a very tight building envelope and a lot of protected trees on site. We need to run several utility lines (water, electrical, and data)…

A real-world review of a modular home battery system—covering installation, performance, and why the economics don’t always match the marketing.

Looking for GPS 40psiAnyone have a source or “part” number for Graphite EPS board? We’re located in MidAtlantic area outside of Philadelphia. Ready to go with a floating plywood slab…

I recently switched from erv supplying the bedrooms to erv exhausting the bedrooms and I'm seeing some major advantages and wondering why bedroom return is not the standard practice. In my…

During a bathroom remodel, we had a bright idea to vault a section of the ceiling over the window and future bathtub location. This has complicated the insulation plan as…

Hello, 2 part question today, we've completed a total rebuild over a year ago including duct, erv, heat pump, and gas furnace in a century home.Still chasing Rh% issues across the…

Hi folks,GBA lurker here making a first-time post. Parts of this topic have been covered but I'm hoping to consolidate notes and get some additional input.I'm in Portland, ME (AFI…

After completing electrical work, I am planning to fill my wall service cavity (about 2 inches in depth) with rockwool batt insulation to give some extra r-value. My finish wall…

I have a 2x6 framed house with taped CDX plywood and Tyvek on the outside. I'd like to reach an r40 wall insulation, but I'd also like to skip exterior…

I have a mechanical engineer who says he's done Passive home design. My new home design is 6,000 s.f. in climate zone 4A with a SIP house exterior walls and…

Thanks in advance for your time and thoughts!I'm considering applying the methods outlined in Dr. Joe's 2014 article:https://buildingscience.com/documents/insights/bsi079-deep-dish-retrofitsBut I'm having a hard time with the detail at the top of…

I'm preparing to build a freestanding backyard sauna on a freshly poured 4" concrete pad (cured for 10 days) and have a few questions before I start framing.The pad measures…

I have a Colonial style house built in 1785, located in Connecticut (climate zone 5A). There is a 12'x20' bedroom addition on the north side that needs a new roof.…

A year of side-by-side field monitoring in a Climate Zone 5 double-stud wall