Green Homes News

Looking to install foam board directly behind the skirting of a mobile home. What type of foam board will be good for this?Does thickness matter? Trying to prevent the wind from blowing…

How can one encapsulate closed cell spray foam that is off gassing, giving odors -- to stop the odors/gases from getting into the attic / home?Reason for question: In the…

Hi, Longtime lurker, first-time poster.  We bought a house with foundation issues and will be excavating three walls (thankfully the fourth wall is exposed, like a walk out basement) and planning…

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Hi everyone, Bit of a long two-part question. We have an old summer kitchen that we are turning into a conditioned office / ADU. The building is ~200 sf  and has a…

Hello have a question about two way breather vents. I had a Roofer come and install a TPO roof and I want to be sure that the correct ventilation has…

A first-aid kit of short-term solutions for bringing down the temperature of uncomfortably hot upper floors

I live in the high desert and am going to build a deck. Humidity is very low and the deck will be on the southeast side of the house. The…

Zone 5, slab on grade foundation. I'm wondering if it would be worth the ~$800 to blown in cellulose in my raised floor. The top of the slab is even…

Zone 5, Coastal CT.I requested a blower door test pre-drywall to see how well we might have done with the renovation of our 1850's modified cape. The final test for…

Have a double wide sitting on gravel located in WI. The floor gets mighty cold in the winter and much worse when the wind is blowing. Underbelly insulation is decent.…

Detailing the four control layers when installing a triple-pane window in a wall with continuous insulation outboard of the sheathing

Hello,I’ve got a 1914, 1-1/2 story house in zone 6. The roof is 2x4 rafters, currently insulated with dense pack fiberglass. (No ventilation from soffit.) Half the roof is over…

Hey everyone! Our builder is having our black tin roof removed (low slope), adding rigid foam to the top side of the sheathing and then put the metal roof over…

Hi there,I have a 1.5 story 1910 house in Climate Zone 4C (Seattle area) and have my second floor gutted, so I need to insulate. I have sloped ceilings, so…

We are considering a building site on our property where there is a ~20x30 foot area of exposed bedrock/ledge protruding a couple feet up from the ground in an otherwise…

Long time reader, first time poster.  GBA & its contributors have been immensely helpful during the design and early construction stages of a Pretty Good Ski House in Madrid Township, Maine-…

Hello all,I have not found any information comparing EPDM to elastomeric membranes in the vast archives of GBA. I'm just wondering what people's opinions are on the two. I'm in…

Learn why air velocity matters and how to ensure AC capacity will lower interior temperatures and remove humidity

Hi all, Trying to air seal rafter/soffit blocking but it involved a repair which required sistering rafters. The soffit area is a mess of sistered lumber and I'm trying to get…