How To Install Microwave Vent Through Roof

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How to install microwave vent through roof.

In the attic mark a spot directly above the duct so you can cut a hole in the roof decking and extend the vent pipe up through that opening. How to install a microwave oven over your range and vent it outside to avoid smoke and oil getting on your ceiling. Wear heavy gloves and use the tin snips to carefully trim the duct section to the required length. If there is no existing venting route decide which option is best for your kitchen and use the template provided to open a vent in the wall or cabinet.

Otherwise a roof vent will be needed. Outline the location of the vent opening on the bottom of the upper cabinet. If you are mounting the microwave on an exterior wall then you can use a wall vent. Drill holes at the corners of the outline then cut out the vent opening using a jigsaw or reciprocating saw.

Use a hammer or a drill with a small bit to locate any wall studs or ceiling joists. Start in the attic and drill a hole through the roof in the desired vent location. Try to keep it close to the fan location. Dry fit the vent cap.

You can buy the proper flashing to install it on a flat roof and a roof cap that has screen around it to prevent insects from entering. From up on the roof use a jigsaw or reciprocating saw to cut a 4 in. To run the ductwork through the roof. On the roof tuck the flange of a roof vent under the shingles above the opening and secure it with roofing tacks and roofing sealant.

A vent should be installed between them when possible. Be sure to extend the pipe up at least 2 to 3 above the roof to prevent snow buildup from causing problems. Leave the drill bit sticking through the roof so you can find the hole. It may be necessary to install a new exhaust adapter but you can use the existing roof or wall vent route.

Vent cap installation measure the distance from the lip of the outer wall opening to the microwave mounting plate. Tape the paper template to the bottom of the upper cabinet.