The Only Thing Basic About XT™ 25 Is Its Price. It's a fact: XT™ 25 gives your home better protection than any other shingle in its product class. Thanks to a tough fiber glass base, XT&trade25 is extra resistant to wind stress to help prevent tearing and blow-off. In fact, XT™25 carries the UL 997 Label so it will resist winds up to 60 mph. Special sealant strips use the sun's heat for additional weatherproofing. And extra asphalt makes it a heavier, more durable shingle compared to basic three-tab strip shingles. When you consider all these benefits, its modest price - just a little more than ordinary shingles - makes XT™ 25 an excellent value. Both moist cool and warm climates can encourage the growth of fungus on asphalt shingles. The result is unsightly green and black streaks that are especially noticeable on light-colored roofs. To keep your shingles looking their best, XT™25 becomes FungusBuster® 25 by the addition of copper granules to the shingle surface. A CertainTeed Roof Stands Above The Rest. CertainTeed is widely acknowledged as the industry leader for innovation in product design, color, performance and warranty programs. Every CertainTeed asphalt shingle meets or exceeds the performance standards established by both ASTM and UL. And no other manufacturer gives you more styles and colors to choose from. Innovation through science and art is more than our slogan - it's been our way of doing business for over 90 years. A Warranty Program With Extra Protection. A warranty program should reflect the quality and innovation of the product it stands behind. As such, CertainTeed backs XT™ 25 and FungusBuster® 25 with a 25-year limited transferable warranty against manufacturing defects and five years of extra protection in the early years when the homeowner needs it most. SureStart™ covers 100% of the replacement cost on labor and materials should a manufacturing defect, however unlikely, occur during the first five years following installation. FungusBuster® 25 is warranted against algae or fungus growth for 10 years. The XT™ 25 And FungusBuster® 25 Color Palette. XT™ 25 and FungusBuster® 25 Product Specifications. •Fiber glass composition •230 lb. per square in Lake Central and North Central •225 lb. per square in East Coast •Dimensional tolerance ± 1-16" • U. L. Class A Fire Resistance •ASTM E108 Class A Fire Resistance •U. L. Wind Resistance Self-Sealing (ASTM D3161) •U. L. 997 Wind Label - 60 mph Wind Resistance •ASTM D3462 (Tear Strength) •Conforms to BOCA building code requirements XT™ 25 Warranty/FungusBuster® 25 Warranty* •25-year limited transferable warranty against manufacturing defects •5-year SureStart™ protection •FungusBuster® 25 is warranted against fungus or algae growth for 10 years.* •25-year limited transferable warranty and 5-year SureStart™ protection are applicable in only the United States and Canada; for products sold outside these areas, please refer to the International Warranty for specific details and limitations *See warranty for specific details and limitations.