Green Homes News

Set up: rA is polyisocynurate @ two layers and staggered seams. LTTR of 28.8rB is mineral wool with r-value of 21Ratio (rA/total system r-value) = 57.83%This set up, obviously, has…

I'm building a vented cathedral ceiling in climate zone 4c.  Currently the plan is to use high density r38 batts to meet code in our 2x12 rafter bays, allowing for…

We are installing vertically hung metal siding over Coravent rainscreen. Two questions:1. What is the best way to finish around pipes that penetrate the sheathing? We already have the pipes…

I am planning to build a PERSIST style roof with only exterior rockwool insulation and an adhered air/vapor barrier like Grace Ice & Water Shield on the sheathing/decking immediately above…

Hello All: We are building our house with all exterior continuous insulation, nothing in the stud walls. We're in western NY State, zone 6. Our current plan for the wall layers…

My house is built on a slab that is uninsulated. All around the exterior of the house, it has a 6 inch wide section that is raised 4 inches above…

Hello,Reading a lot about crawlspace encapsulation tells me the optimal insulation of a crawlspace is on the outside.  Yet it seems every time encapsulation is discussed in detail, the insulation…

Ok, it's always been said, you can save  water, or power, but not both, and when I  installed my first hot water recirculating system I doubled my daily power consumption. But…

Tools used to measure air flows, from unscientific to the most accurate, including the ACIN FlowFinder 2

I have a steel building that has a relatively tall (60") stem wall.  I trimmed out the bottom of the building to have a 3" drip edge under which I…

I have a 15 year old Trane XB13 that is too big and too small at the same time. At 35°F, it cycles because it's too big and at 30°F,…

Good afternoon,We recently moved into our new construction home this past August. Unfortunately, the build itself did not go as smooth we had hoped.We have been playing clean-up on many…

Hello, all. Any recommendations on how to plan and hire out exterior insulation installation as part of a whole house re-siding project? Hire an architect to draft details, hire design-build?…

We will be finishing the attic in our 1930 house in Atlanta, GA this year (Climate Zone 3A, winters include multiple days in the 20s and summers include multiple days…

We have an intello vapor barrier that slightly slicks out under the drywall at the bottom, this will ultimately be hidden by molding so not worried about this detail. But,…

What are the advantages of a vented rainscreen cavity?

Planning a cabin build in northern Wisconsin.  Climate zone 7a.  About 830 SF total.  A 16' x 32' portion will be rafter framed with a loft over about half of…

After losing their home in a 2020 wildfire, this Oregon couple rebuilt with Passive House performance and wildfire-resilient detailing

I'm planning to install A/C into a 1920's two story home in NJ.  It has steam radiators so this will be used primarily for cooling, though I may as well…

Hi,I'm building a new home. I had a fair bit of hemp insulation left over so decided to insulate all my interior walls as not only a way to use…