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• 40-year Warranty. • 100% natural fiber is bristly which helps to grip the roof making installation easier. • Meets or exceeds attic ventilation requirements of all nationally recognized building codes. • Eliminates unsightly fans and vents. • Protects roof and shingles from damage due to excessive heat or condensation. • Passes 110 mph independent wind driven rain tests. • Most economic and efficient way to ventilate your attic with 15.2 square inches of net free ventilation area per linear foot. • Provides uniform ventilation. • UL Class A Fire Rating. • Won't deteriorate or corrode from wind, snow, rain or ice. • Provides a cosmetically pleasing finish to a home |