Q&A Forums
Spray Foam & Drywall Post New Topic | Post Reply
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Rob Granger
Posted: Nov 06, 2007 08:07 PM
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Spray Foam & Drywall
Mason,I need to spray against drywall. Do you have any knowledge of foam/heat bowing the drywall. If so how do I alleviate this problem as in my application I must spray against the drywall. Thanks Mason YES FOAM |
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mason
Posted: Nov 06, 2007 09:17 PM
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You should not have a problem with spraying on drywall assuming that you spray in lifts less than 2 inches. However, if you were doing a closed cavity fill, the pressure of the rising foam would bow the drywall and possible pop it off the studs. |
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Rob Granger
Posted: Nov 06, 2007 09:27 PM
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Mason, What temperature do I need to allow the 2 inch lift to cool to when spraying subsequent lifts? Thanks YES FOAM |
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mason
Posted: Nov 08, 2007 07:16 PM
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It only takes a couple of minutes to dissipate the heat before going over it again. I like to spray 4-5 stud cavities before coming back to the first one. That should plenty of time for the foam to cool sufficiently for another pass. |
