I've just opened up a basement window another 20" down from original to make legal another bedroom and bathroom I have in the basement.
What I have is a wood fram that will get an open-able window/door for emergency egress (escape window basically).
My question is this:
I have about 3/4-1" gap around the sides of the window (the top and bottom are only about 1/4" and caulking would be ok), I've used an expansion foam to weatherize it, but I'm wondering if I can fill the gap between the cement wall opening and the (treated 2x10") wood frame with latex treated grout-I feel this would look much better than using Aluminum trim to cover the gap.
Will the latex treated grout tolerate the expansion and contraction of the wood VS cement, or will it start to crack??
Thanks in advance for your information!