Step by Step Basement Waterproofing:
The following steps will show you How to Waterproof a Basement with SANI-TRED®.
Step 1 Prepare
The first step on how to waterproof concrete walls is “prepare” the substrate (surface). Make sure it is clean, dry, free of any previous applied products, foreign matter and loose or crumbling material.
Step 2 Prime
“Prime” the substrate (surface): Apply 1 coat of PermaFlex® (240 sq ft per gal). Concrete block surfaces need 2 prime coats of PermaFlex® basement waterproofing products because it is more porous than standard poured concrete. The first coat of PermaFlex® penetrates deep to permanently lock and seal within the pores of the basement concrete for waterproofing. The second coat begins filling the pores, pock holes & pin holes near the surface. PermaFlex® basement waterproofing products permanently adheres to concrete.
Step 3 Patch
3. “Patch” and profile any joints, seams, cracks, holes and rough areas using LRB/TAV mixture. 2-parts LRB (Liquid Rubber Base) is mixed with 1-part TAV (Thickening Activator) to create a thick caulk-like mixture. A 1″ diameter caulk bead of LRB/TAV mixture is applied where the wall meets the floor. Most cracks use a 3/4″ diameter caulk bead. LRB/TAV “Round Caulk Bead Chart”
Step 4 Topcoat
“Topcoat”: Apply 1 coat of PermaFlex® (240 sq ft per gal).