03-26-2019, 09:17 AM
(03-26-2019, 08:38 AM)jgsz Wrote: Does anyone know what the material is on the side of the walls? First they put on what looks like a black sheet and then a white sheet over that. Is it some kind of insulation?
Probably some sort of waterproofing. First a drainage layer to let the water flow to the bottom, than a barrier layer to protect the concrete that will eventually be poured between a form and the wood.