lap cement การใช้

• The lap cement is nasty stuff, and I have it all over me.
• To avoid penetrating the exposed membrane with nails, adhesive or " lap cement " must be used at the bottom edge to keep it from being lifted by the wind.
• Down off the roof and off to the lumberyard for two more sheets of plywood and another roll of felt, lap cement to stick the felt down, two big sheets of plastic and some duct tape ( for years I thought that was " duck " tape and had flights of fancy about how it might be used ).