APPC Roof Systems do more than just prevent water intrusion, roofing systems protected by Tuff-Con does not crack unlike in Asphalt and Felts. Wind Velocities of 150mph still do no damage to our systems, as per Hurricane Testing at the University of Miami. The combination of Tuff-Con's protection against fire, heat, cold, UV, Ozone and destructive weather and Tuff-Rubber's water and vapor resistant seamless membrane provides many years of trouble-free service. Specialties: Cracks, Crawl Spaces, Decks, Exteriors, Foundations, Floors, Interiors,Leaks,Mildew / Mold,Roofs,Structural Damage,Walls,Water Damage,Windows & Doors.