How To Cut Hole In Roof For Bathroom Vent

Drill a hole in the center of your mark and leave the drill bit in the hole so you can find it outside on the roof.

How to cut hole in roof for bathroom vent.

Attach the round vent or roof cap with screws first applying silicone caulk to ensure a watertight fit. When water drains air must replace the space that was taken up by the water. From up on the roof use a jigsaw or reciprocating saw to cut a 4 in. Now that the hole was cut my friend ran back down the ladder and up into the attic so that we could connect the vent pipe through the roof.

In the attic attach the vent pipe from the vent up to the roof. The hole needs to be taller than your pipe diameter as the pipe isn t passing through the roof at a perpendicular angle. Start in the attic and drill a hole through the roof in the desired vent location. Take the end of the duct with the connector fitting and attach it to bath vent fan.

Situate the round vent or vent cap across the locator hole. Using a jig saw cut a 4 round hole using the center. Typically the exhaust duct does vent up through the roof however it may also be possible to vent it out through the soffit. If the roof overhang is sufficient a grille can be installed in the soffit and an exhaust duct installed to connect the fan to the grille.

Leave the drill bit sticking through the roof so you can find the hole. If you have any doubts about cutting a hole in your roof you can always have experienced roofers fit the vent for you but most people with a small amount of home improvement knowledge can complete it to a suitable standard. Run a thick bead of tri polymer sealant along the underside of vent hood. Use the reciprocating saw to cut the circle with the locator hole as a start point for the saw blade.

Running a vent pipe out of the roof takes some careful preparation. Mark the roof where you will cut the opening for the vent pipe and roof hood. Installing the vent hood. Plumbing vent pipes are connected to your drain system and are needed for water to drain properly.

Try to keep it close to the fan location. With the pencil scribe a circle where the vent or cap will fit. Bend over the tabs then nail the tabs to the roof. Pass the opposite end of the duct through the hole in roof.

A shingled roof is a roof of separate elements overlapping each other. Cutting a vent hole in a shingled roof is a complicated task and you need to be extremely alert whilst doing it. Cutting a hole to fit a roof air vent does not have to be a very complicated process.