For pitched roof application. Economical way to bring warm, natural light into hallways and small rooms like walk-in closets, bathrooms, and pantries. Aluminum tube is laminated to reflect more light than standard polished aluminum. Attach the rooftop dome to the special flashing designed for asphalt shingle roofs. Light tube adjusts and fits between the rafters. A dual lens glass diffuser spreads soft, natural light throughout interior spaces. Reduces solar heat gain and eliminates condensation. Provides a light shaft up to 50" long. Required minimum roof pitch 3/12 to 12/12. Flat roof application available on special order. Not recommended for heavily shaded roofs. Maintenance free. For use with skylight extension tubes Model No. STT14 20"EXT, STT14 48"EXT, STT10 20"EXT, and STT10 48"EXT.