Put foam between pool coping and paver deck?

poolguy968

Well-known member
Mar 6, 2024
64
Bay Area, California
Pool Size
30000
Surface
Plaster
Chlorine
Liquid Chlorine
Hi folks, I've been building a gunite pool for the past few months and last weekend we finally got all the pool coping installed.

The next step is that we are planning to install a new travertine paver deck and I'm under the impression that before I get started on the deck, I need to first wrap the outside of the coping/bond beam with this expansion joint foam in order to protect them from the expansion/contraction of the deck. Then after the deck is done, I should tear off the perforated top layer of the foam and fill the gap with mastic.

I wanted to double check with the experienced folks if my understanding is correct? In general how thick should the foam be? And would a product like this work? Although I know it says that it is for concrete and not pavers.


Right now this is the state of my yard and pool:
 

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Expansion joints are usually 3/4" to 1". I would use something like this, rather than foam and mastic, which can be quite messy:

 
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