Seams in xps

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  #1  
Old 04-07-16, 09:27 PM
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Seams in xps

What is the best way for sealing seams in xps. Spray foam or tape?
What tape will stick to the dow blue? I have heard tyvek but others said it fell off.

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Old 04-07-16, 09:37 PM
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Dow Weathermate tape. The wider the better.
 
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Old 04-12-16, 07:08 PM
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Spray foam seams

I put up 2in xps layer vertically, seams stagered tounge and groove. I then foamed these seams with great stuff. I then applied 1 in xps vertically stagered seams. I still have some cans of foam around, can I just run a line down each seam instead of the tape?
 
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Old 04-12-16, 08:24 PM
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Should be OK. You just want to stop any air flow through the seam.
 
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