Green Homes News

Hi,I have a question regarding moisture and concrete slab pour.We were all set to pour a 30' x 40' slab (within a stem wall area) when a severe weather warning…

Project in New Jersey, Cimate Zone 4a and 5a.Our Structural Engineer has proposed a significant amount of structural steel to be in the exterior walls. The walls are 2x6 and…

How do I flash this correctly? How far should Ice and Water shield go up on the wall? What kind of custom metal flashing should I make for the corner?

This is the first of a four-part series on options for integrating windows with continuous exterior insulation

A friend on the Oregon coast has a low slope roof with a 7 year old vinyl roof. The roof is 2x6 T/G car decking on beams, with either R…

The shed has some spray foam insulation underneath,  but I don't know the R value. Can't really see much of the spray foam, so not sure what kind of condition…

A similar question to this has been asked before here https://www.greenbuildingadvisor.com/question/modified-perfect-wall-what-happens.  I realize this is not the perfect wall and either is the one described below.The building climate zone is 6…

If Congress normalizes ADU loans, what changes?

I just found green building advisor and have already planned my project and am hearing different stories from contractors. I just thought I'd check the information from contractors.Overview : 1970s…

A couple years ago, I considered but decided against full gutter guards. My gutters are cleaned twice a year, but I still get a lot of seed pods down the…

If the ductwork is sound, is it an easy switch?

I’m going to be having my roof replaced soon and have a question concerning adding foam board such as EPS on top of the roof deck and under the TPO…

Adding a new 21" H fieldstone wall at the bottom of our front yard incline that's about 3ft high. New concrete footing is 30" deep. Wall is about 30 ft…

I am planning  to “fix up” the situation over my 70's kit homes exterior walls.I'm in Colorado climate zone 6 around 7,000'ft. The roof is a 4/12 pitch.I  want my…

We’re in the process of air sealing the inside of a new construction home. For wider cracks, we’ll be using canned closed-cell spray foam (Great Stuff Gaps and Cracks or…

We’re using a Coravent rain screen system, and our builder needs to fur out the windows about ¼ inch to meet the siding. He suggested using rigid foam for the…

What we learned from updating a 16-year-old deep-energy retrofit

Hello,we are trying to figure out a proper way of  creating rain screen around flangeless upvc windows that are set flush with OSB. Windows are already in, and the OSB…

Largely thanks to this site I have gotten the courage or foolishness to proceed with thin stone veneer wainscot (100 sq ft) when I do siding. Mid Missouri, hot humid…

Is there a rough cutoff (blower door score) for when a house is too tight to get combustion air from inside the house for a gas water heater? I've read…