Architects and contractors continue to trust W. R. Meadows’ efficient, cost-effective underslab and pre-applied waterproofing application solution: PRECON. PRECON is used as a pre-applied membrane in vertical applications where access to the positive side is limited. The membrane can also be used for horizontal applications for underslab waterproofing and vaporproofing. It is a composite sheet membrane comprised of a non-woven fabric, elastomeric membrane, and W. R. Meadows’ exclusive, patented plasmatic core (U.S. Patent No. 7,179,761). PRECON’s fabric bonds tenaciously to poured concrete walls to create solid waterproofing protection. Superior to traditional clay-type products, PRECON features a greater seal to stop water in its tracks. A low temperature version is also available.