Cooler installation kit note.
How to install evaporative cooler roof jack.
Install supporting leg kit.
Select a leg kit that fits your cooler model and follow the cooler and leg kit installation instructions.
I suppose you could use a bead of caulk on the top flange of the jack to seal with the cooler.
Install a duct transition piece if needed for a round flexible duct.
Use roof tar or waterproofing membrane to seal all openings.
Installed swamp cooler on roof.
Any screws used to mount brackets to the roof should be coated with tar to prevent water entry.
Apron collar and flex duct not shown sheet metal slide in damper for winter use only large cover plate small cover plate barometric damper roof jack assembly rja 12 horizontal run level vertical rise roof.
The multi pitchtm roof jack serves only as an air distribution plenum and is not intended to support the cooler s full operating weight load.
Install a flexible duct from the roof duct to the ceiling register.
Use two self tapping screws to fasten cover plate to roof jack assembly.