What type of roof do you have ?
· Shingle
· Shake
· Flat Tile
· Barrel Tile
· Flat Roof
· Metal Roof
· Other __________

What is the square footage of room to be lighted ?
Foot x Foot units

What is the distance from the floor to the ceiling?

What is the pitch or slope of the roof ?
· Flat
· 2 - 3/12
· 5 - 6/12
· 7 - 9/12
· Other __________

What is the distance from ceiling to roof directly above the center where the diffuser will be mounted?
Add 9 inches to that measurement to allow for the pipe that goes above into the flashing on the roof.

Is the unit being installed through a ceiling or installed suspended with no ceiling?