Leave scratch coat exposed how long??
I am doing an addition on my house. I am going to use some sort of fake rock on the outside of thhe chimney. I need to get it dried in by winter but its going to take several months for me to get the masonry work. How long can I leave the scratch coat exposed to the elements? Would it be better to leave the lath and paper exposed instead??
Replies
you can leave it forever if you want (the scratch coat).... just make sure it's clean before you start expecting anything new to bond to it...
might have to dash coat it with a portland water mix right before bond the new stuff
p
If you're worried about it, maybe use a PVA bonding agent when you're ready for the brown coat.
-- J.S.
How long can I leave the scratch coat exposed to the elements?
Until you're ready to sell the house.