Help - Expansion Joints / Copong

[vgomez1]

I know this is a problem but not sure how to proceed. You could see styrofoam under the caulk / coping. Do I need to fill then cover and if so, with what? Thx!

 

[ajw22]

You need to scape out the old caulk. Then you fill the joint with...

Amazon.com : Foam Backer Rod

DECK-O-SEAL HS-1 SL - Self-Leveling Pool Deck Joint Sealant

DECK-O-SEAL HS-1 SL is a self-leveling pool deck joint sealant developed with silyl-modified polymer (SMP) technology. It cures under the influence of atmospheric moisture to form a medium modulus sealant with excellent adhesive properties and resistance to ageing and weathering.

www.deckoseal.com

 

[vgomez1]

How far down will this fill? Do I prefill with something, then use this like a caulk? Thx!

 

[ajw22]

How far down will this fill? Do I prefill with something, then use this like a caulk? Thx!

You “prefill” with the foam backing rod.