Hi again, Ive got a garage that comes in under the north west corner of
the house. Above the garage are 2 bedrooms. The garage is unheated. You
can exit the garage directly into the basement of the house. The
basement is unfinished and the joists are open. Upon looking down the
run of the joists over the garage you can see that they are un insulated.
See the image Joists.jpg at http://www3.sympatico.ca/jdmst/ .
My question is what is the best way to insulate this area? There are
about 10 runs like this, about 10 feet deep each of them. I was thinking
rigid insulation? Is a vapor barier needed in this case? Any opinion is
I assume you are only talking about those areas that are between the
garage space and occupied space above. They should have been insulated when
constructed, but well I guess it is a little late to correct that now.
Vapor barrier would be greatly desirable, but somewhat less necessary
than with an outside wall as the garage is likely to be less cold during the
I suggest a blown in insulation. Find a professional. They should be
able to fill the space from end to end quickly and without charging too
much. There are a couple of options on how so let them decide.
You would think that it would be cheaper to do it yourself, but I think
you'll find it cheaper to call in an insulation contractor who's only trade
is installing insulation. They know what they're doing and by the time you
buy the materials, set up the blower, etc. they can be in and out of there
and have the job done...and cheaper most of the time.
At least take the time to look into it.
I agree. They buy in bulk and have the right equipment to do this job
that may require packing insulation some feet away from the operator. They
also have the experience to do it and assure a full fill.
yes. I like doing things myself. But sometimes, it's not worth it.
Insulation and itching from it fall into that.
I make more/hour than the guys that install insulation. More: If I
go to work on tuesday while they do the work, I'm earning the money
that will pay them. Taxes wacking 1/3 of it, I pay out a little. But
I also don't have to give up a saturday to do it.
"friendly instructions from home depot staff" are often as useful as
advice from here. Sometimes is just sucks.
I know that several tool makers have stopped training HD staff people
on how to use/setup their tools because they had to cut costs to
meet the HD pricing demands.
When you buy a wood shop vacuum system, the sales people USED to get a
couple hours of instruction from someone expert in using it.
Now they get a sheet of paper on how it works. Maybe.
fill them up with blown insulation. I got mine installed cheaper than going
to the box stores and doing it myself
They are going to have to force the hose down the cavity at least 50% to
fill the voids
Thanks to everyone who replied. I think that those who suggest that I
call a contractor to do it are probably correct. It isn't a big job,
but, it could be awkward for me to do and the've got the equipment and
experience. Thanks everyone.
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