Green Homes News

Hello,I am planning the build of a metal building in Oklahoma (hot and humid summers and mildly cold winters). I want to use Polyiso foam board as insulation for both…

Texas-based ICON unveils winners of inaugural Initiative 99 competition, with plans to build new affordable homes for Austin community

Hey all. We have all our 3in polyiso exterior insulation up. We’ve installed all our windows as outies but want to install our doors as innies. We have 4in of…

We had our slab poured just over 1 year ago, it was a race against time as temps were rapidly dropping. Over the past year throughout construction I’ve noticed the…

Location: Bell Hall B-500, Belfer Building, 79 JFK St., Cambridge

Join Harvard Students and Faculty as they share their key takeaways and perspectives from the UN Climate talks in Baku, Azerbaijan. A blended panel will analyze progress around international climate negotiations and discuss what lies ahead for COP30 in Brazil. This event will have a catered breakfast buffet.

... Read more about From Baku to Brazil: Key Takeaways from COP29 and the Road to COP30

Does it make sense to use OSB sheathing in a cold climate?

Hello,This is for Zone 4C regarding a crawl space detail, please see attached.  I had looked at several details on this site regarding crawl spaces and someone brought up insulating…

Hello,I'm trying to work through the details of an unvented roof assembly in climate zone 4C (Seattle).  Please see that attached detail.  This roof will be over a new addition…

Context: we are building a 3-story addition in zone 6b/7, 6600-ft elevation, average winter temp 11F, 386 lb/sqf snow load. We're installing Loewen casement and awning windows (flange mount) in our…

I have a question regarding frost protected shallow foundations. Why are they not popular in the northeast US? They seem to be a more efficient way to build a slab…

Hi,I am the new owner of a brick veneer over wood frame rental property in Kingston, ON, Canada. (5A I believe)It has been below freezing the past few days but…

Hello. We removed a door that used to provide access to our house from the garage. On the interior side of that wall, we used two layers of fire-rated drywall and…

I would say I have a basement with 80% of walls insulated. There is a water heater heat pump, a sump pump, access to the crawl space which I think…

Well my insulation plans have changed as I recently have access to a good amount of "recycled" polyiso 4x8x2 foil faced foam boards (both sides) that read r13. Also a…

Well my insulation plans have changed as I recently have access to a good amount of "recycled" polyiso 4x8x2 foil faced foam boards (both sides) that read r13. Also a…

Hello everyone, we've recently done a bunch of HVAC work to address air quality and humidity concerns. We installed a Santa Fe ventilating dehu which is controlled by a Haven…

Can anyone explain what this means?  Go to bottom of page, click About.  It shows Active Interest Media page.  Go to bottom of that and see:  Through United Healthcare, UMR creates…

I read on a separate thread a discussion of the difference between U-factor .30 and .20 windows (conclusion was that .30 was usually sufficient given the cost -- .20 means…

Building an addition in CZ 6b/7, elevation 6600', 386 lb/sqf ground snow load.  Average winter temp is 11F (4 months).  11F is not that cold, but the temps regularly drop…

Dear GBA friends,I just finished reading "All about Radon" with the comments as well as a few other articles. Thank you for the advice.I wonder if my situation would have…