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Coastal Contractor

March 2006
High-Performance Underlayment - 36-Volt Power Tools - Drainage-Plane Clips - Bendable Borders - Impact-Resistant Glass Block System - Efficient Bracing - Integral Insulation

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Products High-Performance Underlayment Lighter and stronger than 30-lb. felt Grace Tri-Flex 30 is a spunbonded polypropylene sandwiched between layers of UV-stabilized polypropylene that provides a slip-resistant roofing underlayment that won't tear away from nails in high winds, even when left exposed. According to the manufacturer, Tri-Flex can be left exposed for up to six months without drying out or rotting at high temperatures, or cracking and becoming brittle at low temperatures. Weighing only 30 pounds for a large, 10-square roll, Tri-Flex is much lighter than 30-lb. felt, making installation easier. Tri-Flex 30 must be attached to the roof deck with

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