Spray-Foam Fastener. When I need a powerful gap-filling adhesive, I reach for a can of polyurethane foam. Touch 'n Seal is hoping roofers will do the same. Storm Bond Roof Tile Adhesive is a one-component polyurethane adhesive designed to fasten clay and concrete roof tile to an approved underlayment. According to the maker, its bonding strength is superior to that of mortar or mechanical fasteners, and it's been approved by the Florida Building Code for use in hurricane zones. It's sold in a 24-ounce aerosol can ($15) and a 23-pound cylinder ($170). Convenience Products, 800/325-6180, touch-n-seal.com

 

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