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Drainable housewraps have become a popular solution for improving moisture management in modern wall assemblies. In this article, originally published in Fine Homebuilding #252, June/July 2015, builder and editor Justin Fink explores how drainable housewraps work, where they fall short, and how they compare to more-robust systems like ventilated rainscreens. By examining building science research […]
I have a 1975 home in zone 4C that has 1000sf of cathedral ceiling with 2×8 framing with insulation more of less filling the cavity. the attic space around these cathedral areas (~800SF) is under-vented. There are signs of mold on the underside of the osb sheathing in the attic areas and the roofer, during […]
I want to make a 2.25″ x 6.5″ cut through the bottom plate of a partition wall to run two 3″ Comfoflex tubes down to the lower level (see red highlighted area in the first and second images, to the right of the stud). The wall sits perpendicular to the trusses below (see green lines […]
https://imgur.com/a/nAi9cgw I have two ervs supplying 4 bedrooms via dedicated ducts. They supply into the bedrooms and get back to the returns which are placed in the conditioned attic, via 2 inch undercuts on on the bedroom doors. Looking at the above image you can see a very close distribution when the heat pump fan […]