K-Wall offers the TUFF-N-DRI® Basement Waterproofing System which is backed by a 30-year warranty. Including high quality waterproofing in your foundation helps to ensure a dry, comfortable basement and mitigate mold and mildew problems. Most people do not realize that concrete is porous – because the pores are invisible; even smaller that human hair. While poured concrete walls are not as porous as cinder blocks, both start as impermeable to liquid water but, as they cure, their porosity increases and they start behaving like a very dense sponge. TUFF-N-DRI® uses a special two-part system combining a seamless waterproofing membrane with quality foundation board. The result? TUFF-N-DRI® delivers up to 8 times more hydrostatic head resistance than other polymer-modified asphalt emulsions!