Concrete curb installation tips…I need to build a concrete curb for my shower backer board and bathroom drywall. But the form has a gap between it and the floor. So I used Great Stuff Big Gap Filler. Lightly spraying with water speeds up the cure. It worked perfectly to retain the new concrete. Many thanks to Great Stuff for sponsoring this tutorial 🔥#concrete #bathroomremodel #greatstufffoam #homerepairtutor #sponsored | Home Repair Tutor