exterior foam on block walls – GreenBuildingAdvisor
user-1117155934 | Posted in General Questions on May 24, 2025 10:40am hello, i have an uninsulated block wall building with no insulation. plan is 2×4 stud walls inside with rockwool r15, strapped foam exterior with wood siding, i have done this in the past on wood framed buildings and always matched exterior to interior r […]
I’m building a house zone 6 and care a lot about air quality. I think current code requires enough R value that I’m not as concerned about energy efficiency.Talking with my builder – he recommend the following double stud wall assembly:siding, tyvec rain screen, blue wrap, sheathing (plywood), rockwool, intello. Then another wall for electrical […]
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I’m getting ready to order some roof trusses. and I noticed that the dimension they show for the heel of the trusses is 1-3-9. I’m guessing from context clues that’s feet-inches-16ths. I hate the imperial measurement system, but that’s another story. My drawings specify a heel of 1’6″. I then noticed that on the truss […]
Building Matters California’s Plant Prefab has created a versatile manufacturing and design model based on speed, energy efficiency, and bespoke solutions By Justin R. Wolf | May 23, 2025 The ADU project shown here was designed by Alchemy Architects and built by Plant Prefab. It’s in Sebastopol, Calif., was photographed by Brian McCloud, and appeared […]
Does anyone have recommendations for how builders can educate & convince clients to care more about building science and energy efficiency? Our clients want nice houses, but it’s been difficult to get buy in from them on things like good exterior insulation or willingness to adjust the shape of the house. I think part of […]
I have a build I am planning and am going back and forth on how to heat it. For the purpose of this discussion let’s set aside any cooling needs. I want to heat with radiant, not because I want warm floors I understand in a super insulated air tight home I will not have […]
Strange days have found us. This past April 4, the Federal Emergency Management Agency (FEMA) announced it was ending the “wasteful, politicized grant program” known as BRIC, or Building Resilient Infrastructure and Communities, and in the process canceling all BRIC grant applications for the fiscal years 2020–2023. Note the starting year. BRIC was established in […]
In my unvented, conditioned attic, what can I use to cover the batts in the rafter bays behind my knee wall? Climate zone 4a. I had the roof insulated from the exterior using polyiso according to cathedral ceiling best practices from GBA. I also added additional insulation using unfaced batts on the interior side between […]