Pvc drainage board construction process which
Basement wall impermeable water, can be laid on the main building wall drainage board, round table facing the main wall. Drainage board and then build a layer of single-wall or steel mesh pipe cement to protect the drainage board, so that the wall outside the water pipe straight down into the blind ditch straight to the collection pit.
Clean up the laying of the scene of garbage, cement leveling, so that the scene is not obvious convex, outdoor garage roof and roof garden need to have 2-5 ‰ of the slope.
