I am putting up insulation and I have a knee wall of sorts in my attic.
There will be insulation on the partial cathedral ceiling. My question is
on the backside of the kneewall... on the opposite side of the vapor
barrier... this will be the cold side but will also be an attic. Can I
cover the insulation with something so that it isn't hanging loose?
plywood? firring strips or straps?
Inside the attic
inside the living area or the semi cathedral ceiling
It shouldn't - it's not a vapor barrier. In fact, in an attic space you
may want something with a lower perm rating so less vapor is driven into
the wall from the attic side. Tyvek is ~60. There are other products
down in the 5 - 10 perm range. (Products with a perm rating <1 are
considered vapor barriers. 4mil poly is rated at .8 perm)
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.