NAC offers sheet applied and liquid applied membrane solutions for long lasting waterproof protection. Strataflex sheet and SubSeal liquid membranes are stand alone waterproofing products that will provide a water tight seal creating a new surface for finished floor installations. In addition, both waterproof membranes also have crack isolation capabilities. For exterior decks, NAC has combined the waterproofing capabilities of sheet and liquid to create the Extreme Deck Waterproofing System. This system provides a double layer waterproof defense for exterior decks in areas over a living space, and especially in extreme heat and cold conditions assuring lasting protection of your deck.