When a demolition team went to tear down a gymnasium containing W. R. MEADOWS PMPC at Ursilane College on the east side of Cleveland, Ohio, they found something remarkable. While demolishing the building, the workers found that the PMPC, placed below the building’s concrete foundation in 1973, was still intact–looking as if it had been placed this year: solid, no cracks, with its plastic release sheet still intact. PMPC or, PREMOULDED MEMBRANE VAPOR SEAL WITH PLASMATIC CORE, is a patented (#US 7,179,761) seven-ply, weather-coated, permanently bonded, semi-flexible vaporproofing/waterproofing membrane. It is composed of an exclusive plasmatic core suspended mid-point between two…
We have recently added a new course for Premoulded Membrane Vapor Seal with Plasmatic ® Core (PMPC) on our training site, Knight School. PMPC is a vaporproofing and waterproofing membrane designed to stop moisture migration in footings, concrete floors, and structural slabs. With the lowest perm rating in the industry of 0.002 perms, PMPC offers a virtually impermeable vaporproofing system and waterproofing system for horizontal applications. Knight School is designed to provide more information about our products and to offer continuing education. Click here to log in or register to take our new PMPC course.