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Home > Archive > Building and Construction > December 2007 > question about wall insulation
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question about wall insulation
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| hi,
when constructing the room in my basement, the contractor put mineal wool (white, not pink) between the wooden studs and then covered with with a vapor barrier. LATER on he was placing quiet a few pieces of 2x3 (perpendicular to the studs) - as I needed s
ome for later being able to screw things to the l for my specific use) but because of that in many places the wool touches the cement of the wall. Is that a concern or should I take out the wool and cut it out so that the wood doesnt push it into the wal
l? (i've read somewhere that it traps humidity and when touching the cement, it could lead to mold growth) ??
thanks in advance
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| RicodJour 2007-12-12, 1:25 pm |
| On Dec 11, 6:43 am, greg <gstusio[at]hotmail[dot]com> wrote:
> hi,
>
> when constructing the room in my basement, the contractor put mineal wool (white, not pink) between the wooden studs and then covered with with a vapor barrier. LATER on he was placing quiet a few pieces of 2x3 (perpendicular to the studs) - as I needed
some for later being able to screw things to the l for my specific use) but because of that in many places the wool touches the cement of the wall. Is that a concern or should I take out the wool and cut it out so that the wood doesnt push it into the w
all? (i've read somewhere that it traps humidity and when touching the cement, it could lead to mold growth) ??
>
> thanks in advance
I'm not a big fan of using fiberglass batt insulation in exterior
basement walls. The fiberglass can trap moisture that condenses and
that leads to mold growth. If you have a dry basement - the
foundation walls are waterproofed, there's a good perimeter drainage
system and you don't dump a lot of moisture into the basement air -
you'll probably be okay. My first choice would have been foam
insulation - either sprayed or rigid insulation sheets. The interior
of the foundation walls should also have been sealed with something
like Thoroseal or UGL Drylock.
The fiberglass won't really wick up moisture from the walls. It's
more of a case of moisture laden warm air passing through and around
the basement walls and condensing in the fiberglass, or of ground
water from the outside seeping through the wall and not being able to
dry out to the interior.
R
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