Green Homes News

It's great that the industry publishes the R value of different insulating materials (fiberglass, Rockwool, wood fiber, different foams, hemp, sheep wool, cellulose, and on and on), but I'm realizing…

Alright building science nerds,I am currently in the midst of what I thought was a re-siding project on the south facing exterior wall of my house in midcoast Maine. Turns out…

We are planning an addition which will have a low slope roof - 2 1/2” / 12”.  There will be both a shed vaulted roof (over a great room) and…

My shed/workshop's heating and cooling load is less than the minimum BTU output of my mini-split, so I put together a balanced ventilation system on a budget to provide fresh…

Raised floor 3/4" Advantech Subfloor 2x12, 24" OC joists 2x12 blocking every 4' to provide bearing for the under and subfloor sheathing 3/4" green treat plywood under sheathing What's best…

The proposed bill threatens several tax credits that have helped millions of households achieve greater energy efficiency and independence

Hello GBA community,I've just bought my first home, a 1911 Foursquare in Seattle. Overall, it's in great shape, but the roof and attic need immediate attention.The 30-year-old roof is failing…

I'm a builder in Montana. I'm selling a spec house that tested 5.5 and so I need to mitigate the radon down to below 4. The house is on a…

And can an unvented attic/roof assembly be semi-conditioned?

Hi, when flashing windows with integral j channel is there some sort of kick out flashing at the bottom to divert water out over (vinyl) siding when it flows down…

My garden shed is built. I am cladding with 10” half log white pine, horizontally. I would like to add exterior insulation under the pine. The windows are already installed. what products are…

I'm working on a house, in Climate Zone 6. The walls are wood framed with vapor barrier (membrain) on the interior. They are sheathed with 5/8" CDX plywood, then Blueskin…

Help me get out of my head on this one. We are in the process of finishing a 10x12 shed kit. Ultimately it will be conditioned space: not sure if we…

Hi, we have a 1870 square foot duplex with 3 floors. The first floor is one unit and the second and third floors are another. Currently there's a natural gas…

Does anyone know if both layers of EPS (exterior/interior) count towards the required R-value in a FPSF. In particular, the vertical R-value needed. Or, is it just the thickness of…

Hey All,One more wood siding question for the group. I know that many recommend against a stone veneer with wood sheathing and framing (even when done right with multiple drainage…

I had aeroseal applied in my house and there was a large leak due to lack of proper seal on ducts . as a result I need to use an…

Hi all, In looking through the Q&A forum, I see a number of questions with very similar details to mine, but given the stakes I'd like to make sure I get…

For my new home build I'm spec'ing waterproofing of below-grade foundation walls with something like Tremco Tuff-N-Dri.That's based on reading as much as I could find about this topic, including…

Adoption, enforcement, and execution mean more than the determination