Openings are left for windows and doors. Wood bucks are used to form the sides of the openings. Reinforced concrete beams are used to span window and door openings. Special corner forms are used so the concrete can be continuous around the corner. This gives us a large concrete column right at the corner, which will make it good and strong.
All foundations have to get some sort of water protection.
The product we chose is a rubber polymer that's applied with a sprayer. They have to heat the rubber up to get it to flow smoothly through the pump and hose. The rubber stays extremely flexible so it will stretch and bend if the foundation should shift or crack a little. This is just to protect the waterproofing membrane from any hard clumps of dirt or rocks that might rip it. These are basically many layers of wood veneer glued together.