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Foam insulation

Posted by JT on December 16th, 1997 06:12 PM
In reply to SPRAY IN FOAM INSULATION by CHRIS PACK on December 15th, 1997 10:10 PM [Go to top of thread]

Chris, don't know the answers to your questions, but
I have heard lots of horror stories from reliable
sources about the kind of foam that is sprayed in
to wall cavities via drilled holes. Seems that the
tendency is for the foam to setup just a little way
inside the hole leaving most of the space uninsulated.
This kind of defect can be seen clearly with an
infrared camera. If you are talking about the kind
of foam that is sparyed on before the wall is closed
up, that is a different story. If you must spray into
closed walls consider dense packed celulose.

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