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Posted by Bobk207 on June 16, 2007, 4:43 pm
On Jun 16, 10:28 am, hockeyhoc...@hotmail.com wrote:
> I am having a house built, the basement walls are poured concrete.
> The basment walls are framed and insulated with FibreGlass insulation
> and then covered with a vapor barrier.
> The problem is there has been so much condensation the insulation is
> soaked on the side that is against the concrete wall.
> Just now the builder has put in a big fan and dehumidifier in the
> basement to circulate the air. The AC/furnace has not been hooked up
> yet.
>
> I dont want to take possesion of a house with wet insulation in the
> basment. What agruments should I use with the builder on my walk
> through to get hime to replace it? What should I get him to do? I
> have a feeling it wont be a smooth walkthrough.
With the vapor retarding membrane in place...it's going ot be a long
time drying that insulation out. What was the source of the moisture?
Aren't foundation concrete walls normally insulated with rigid board
on the outside? (at least that is my limited experience with
insulated foundation walls in mountain regions of CA & NV)
Something doesn't seem right here.
Here's a rather lengthly report on basement wall insulation systems,
depending on the local year 'round climate conditions....your
insulation system may not have been such a good choice. I'm no
expert of these installations but if you've go moisture issues at walk
through that would seem to indicate a design or construction problem.
http://www.eere.energy.gov/buildings/building_america/pdfs/db/35017.pdf
I found the report a little confusing in the begining (plus I was
reading it on screen.....I do better with paper report)
but it you read & understand most of it, you'll well enough informed
to discuss the problem with your builder.
Some insualtion systems require A/C or active de-humidification to
avoid moisture problems. Hopefully you live where moisture is not a
huge issue but I'm thinking not. :(
My original question(s) still stand......how did it get wet, how will
it dry with a membrane in place AND what will prevent this situation
from happening again? (after you've signed the final check)
be careful
cheers
Bob
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