What performance will I get if the Daylite units are mounted on a north-facing roof slope?
A. A Daylite unit can provide adequate lighting when mounted on a north sloped roof, and a steep roofing install kit is available. Greater light will be available in Summer, at higher solar angles, while in Winter light output will be reduced compared to a south facing roof slope installation. When siting a tubular skylight it is preferable to go for as much direct sun as possible on an annual basis for best performance. Q. Is there a limit to the length of the light transmitting tube (extension)? A. Adding more sections of tubing to the Daylite unit will reduce the light output at the indoor diffuser, and tube lengths should be planned carefully. An eight-inch diameter Daylite unit should not have a tube length exceeding 12 feet. A 12-inch diameter Daylite unit should not have a tube length exceeding 20 feet. Q. Do I have to install extra insulation around the attic tube in colder areas? A. Many Daylite units have been installed in colder North American locations with good results. Da
