A wall cap is the cover you see on the medial side of a home that handles an exhaust duct. The wall cap offers a cover for the duct, which will be usually about 4″ broad. This stops debris and animals from entering your house through the duct like leaves. You require to supply a a good seal between the aluminum siding as well as the wall cap, which means you will need to use a block.
Place the wall cap on the conclusion of the duct that may extend through the hole in the the outside wall and connect with the duct in the house.
Slide a block on the duct and place it flush against the wall cap. The side of the block should be against the wall cap, as well as the side using the grooves should face from the wall cap, as the grooves are made to fit tightly from the siding. Trace the outline of the wall cap in the event the block is greater in relation to the wall cap and slice the the block using a hacksaw.
Place a bead of silicone adhesive across the interior edge of the wall cap. Slide the block again on the duct and press it from the wall cap.
Insert the conclusion of the duct to the hole in the wall and drive the wall cap from the side of the home.
Drill pilot holes throughout the block and through the screw-holes on the wall cap, siding and wall.
Pull the wall cap and duct from the wall. Apply a bead of silicone adhesive round the perimeter of the block where it’s going to come into contact with all the wall.
Insert again the duct to the hole and press the wall cap tightly from the side of the home. Screw the wall cap to the wall using the screws that are supplied.