The rock wool is contained in a plastic barrier - if I put the fiberglass over it do I need a vapor barrier or should I put the wool right over it?
- posted
15 years ago
The rock wool is contained in a plastic barrier - if I put the fiberglass over it do I need a vapor barrier or should I put the wool right over it?
Never have more than one vapor barrier or you will eventually get moisture trapped between them since barriers are not 100% effective.
Don Young
rock wool is contained in a plastic barrier - if I put the
so does that mean I cannot put fiberglass over the rock wool since it's encased in plastic? Do I need to rip it down? This is in a Cape Cod so the insulation is hanging from the gables. I'm just concerned that 3" of rock wool is not an efficient amount of insulation.
.> The rock wool is contained in a plastic barrier - if I put the
Just cutting slits will take care of it, remember slit both the top and the bottom.
The rock wool is contained in a plastic barrier - if I put the
slits at the top and the bottom are good enough to release the vapor? There are staples in the middle as well, should i put slits there too?
rock wool is contained in a plastic barrier - if I put the
They just did this on one of the home shows - Ask This Old House? There was already a moisture barrier, so they put fiberglass (six inch thick) crossways across the rafters with no additional barrier. The show was on in the past month or so.
HomeOwnersHub website 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.