Swamp Cooler Duct Through Roof Detail

You will also need a sheet metal can fabricated the same size as your ceiling diffuser opening and another round collar tied into the end cap.

Swamp cooler duct through roof detail.

Drill a pilot hole through the roof and use a saber jig saw or equivalent tool to cut the 18 inch diameter hole. In some cases existing ductwork is used to move the air to the various rooms. Roof mounted are the most common although they are more difficult to maintain. Mounted coolers are connected to ducts that bring the cooled air into the rooms of your home.

Diameter hole to be cut into the roof while not cutting through any roof joists. A typical side draft cooler. Also this version is easier to perform maintenance on. Cut out the marked duct outline with an electric saw.

Use an electric drill and drill bit to drill starter holes at the corners of the marked outline then use a saw to cut the outline. Fit the collar into the port on the side of the cooler with the section of duct extending horizontally above the duct riser at the roof. 2 buy a unit that can create 20 to 40 air changes per hour. Keep the duct centered between the roof joists.

A typical down draft swamp cooler. Use the cooler duct and a pencil or marking pen to mark the shape of the duct on the inside of the roof. The included flex duct length is 7 feet. The advantage of a ground mounted version is you don t have to worry about your swamp cooler leaking through the roof.

The collar or apron can be used as an 18 inch template.