This way you don t have to cut a brand new hole but simply make the hole for the vent larger so it can accommodate the fan.
How to install roof mount attic fan.
Roof fans are mounted on plastic or sheetmetal bases that serve as.
Lay the plywood on a flat surface and line the fan up over the hole you cut out.
Those made for roof installations and those intended to be mounted in a gable wall.
To save time use an existing roof or gable vent to install your new attic fan.
Drill the screws that came with the fan through the screw holes on the fan s mounting bracket and into the plywood.
Mount the attic fan onto the plywood so it s centered over the hole.
There are two basic attic fan designs.
Do it yourself attic fan installation instructions.
Roofers are the most qualified to install attic fans mounted 1 on your roof line.