I'm hoping we don’t must tear down all of the exterior wall drywall to re-insulate the house if an inside vapor barrier is needed …. (Spray foam is just not a possibility on account of chemical sensitivities in the house) – and would recognize any feelings.
I've been believing that following the siding is eradicated it might be feasible to pry off the board sheathing and Lower/pull out the poly at Every single stud bay. Then re-put in the boards or apply all new sheathing and keep it up with whichever wall assembly you desire. Does this look like a workable approach to everyone? GBA Editor Martin Holladay
We've been replacing the siding and plywood on the outside of our residence (rotting as a result of moisture intrusion in certain locations), and wish to replace the entire remaining fiberglass insulation on the exterior walls with Rockwool mineral wool batts surrounded by exterior Zip insulated sheathing. (R6 Zip and R15 mineral wool)
Justin, Take note which the Tyvek making wrap serves as our waterproof barrier (WRB) which is the base layer with the rain monitor design and style - a driving wind blown rain may possibly access this place & gravity move to the base from the setting up.
To attain our R-sixty aim within the roof, we above-framed the prevailing roof framing with 16-inch-deep TJIs and put in metal truss rods with horizontal hold-downs to prevent The brand new rafters from spreading.
I'm on the lookout forward to the TimberHP batts much too. If your photographs are something to go on, They appear amazing!
Even inside a house with an unconditioned basement, the basement is a lot more connected to other dwelling spaces than to the skin, which makes basement wall insulation preferable to ceiling insulation." (As I understand it, though Safe 'n Seem is not bought as thermal insulation, which is as a result not rated to possess any individual R-worth, it does work as a thermal insulator of a rather lesser R-worth than Comfortbatt.)
Roxul, in particular, likes to generate these entire "rooms" fabricated from rigid Harmless'N'Sound batts at trade exhibits simply to exhibit how well they function... but naturally, you'd under no circumstances go here away the batts like that in the actual globe.
Best of luck with the venture, your own home ought to be far more comfortable and Vitality economical following your initiatives. Be sure to post a brand new concern for those who or your contractor could use more information or Tips on some matter.
Which is solidly in the course of Course-III vapor retardency, comparable to that of standard interior latex paint. The housewrap also could be offering at the least some number of capillary crack to Restrict the quantity of wicking of ground dampness to the fiber.
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I'll transfer inquiries to "innie" window retrofits. I see because of the innie details, they duplicate what I did 7 many years ago when I additional the initial two inches of EPS. I took applied 2x2s (sloped at base sill) to improve outwards.
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then Membrain. then drywall. for locations 50% higher than ground to include cavity insulation tight in opposition to comfort board. then MemBrain. then drywall. He was not worried about one" airspace amongst bats and drywall or vacant cavity.