Insulating waterproofing membranes; Polyurethane and polymer sealants used in the construction industry, namely, sealants for buildings; Resin-based sealants for use on roofs; Waterproof sealants; Sealants, namely, waterproofing and weatherizing sealants for use on roofs; Substances for sealing buildings and roofs against moisture in the nature of waterproofing and weatherizing sealants, namely, polyurea, polyurethane, polyaspartic, aliphatic urethane and acrylic sealants; Silicone-based seal...

Steel Structural Shapes Used as Sub-Purlins for Reroofing Over Existing Roof Decks and Metal Screws and Nails Used for Fastening Such Sub-Purlins