Our E-Class Manual Venting Deck Mount skylight series offers much more daylighting and ventilation than all other major competitors. Venting deck mount skylights are favored for new construction applications. For in reach installation they are ready to go straight from the box. A crank handle is included with the skylight. Out of reach installations will require an eye adapter and a skylight pole to operate the skylight. A minimum 3/12 roof pitch is necessary for proper installation. Best suited for use with thin roofing materials like composition, slate, wood shingles or shakes up to 3/4" thick. Not intended for vertical applications.