Capillary break sprayed on to footer
We are pouring footers next week and have to make a decision on how to provide a capillary break between footer and foundation wall. Specs in our contract builder call for a liquid applied product to be used, with a $250 allowance for that. The idea was to apply it before drilling in the rebar, then to patch as necessary after rebar is in place.
Now my builder is suggesting that we could instead have the waterproofing contractor spray Tremco Tuff n Dri on the footer after the rebar is in place. He would do this for $250, so it’s within budget.
Any thoughts on using this product for capillary break? It seems like an “off-label” use and I’m just wondering if there might be a reason I’ve never heard of it being used for this purpose. Tuff n Dri dries to just 40 mil thick. Is this perhaps too thin for this application?
Please help if you can, we’re up against this decision and I don’t want to screw up this critical detail.
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