Polyprufe Polyurea waterproofing system from MacLennan-LSE: Roof Waterproofing, Bund Lining, Tank Lining, Basement Tanking, Parking Decks and Green RoofsGreen Roofs need waterproofing systems that are highly dependable, fully bonded, seamless and highly elastic. MacLennan-LSE's green roof waterproofing systems delivers all these.The key to flat roofing and roof waterproofing is that the system is seamless, fully bonded and impact and abrasion resistant. MacLennan-LSE uses Polyprufe systems which are the most durable roof finish available on the market.MacLennan-LSE's Polyprufe spray applied deck waterproof system has high abrasive strength as well as elasticity at over 300%, flexible, tough and long lasting.MacLennan-LSE have a range of systems for repairing the structure of the bund and providing a lining which is resistant to most fluids, elastic, seamless, fully bonded, impact and abrasion resistant and will not degrade due to UV light. One of these systems is the Polyprufe system.