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This installation chart is a pretty useful starting place, regrettably local codes often require you to do the wrong thing https://www.certainteed.com/insulatio
by paiute 4y ago
This installation chart is a pretty useful starting place, regrettably local codes often require you to do the wrong thing https://www.certainteed.com/insulation/resources/do-i-need-vapor-barrier https://www.certainteed.com/insulation/resources/do-i-need-v...
- hedgehog 4y agoHave you investigated a combination of additional vapor permeable exterior insulation and impermeable primer for the interior walls? You may be able to minimize the amount of moisture staying in the walls and still hit your thermal goals.