Installing Bathroom Vent To Roof

Letting the fan exhaust into an open attic will cause moisture buildup on the underside of the roof.

Installing bathroom vent to roof.

Choosing a whole house fan. Use a layout square or framing square to draw the. This video is a comprehensive rundown on how to install a roof vent on a pre existing shingle roof. This article describes routing bath exhaust fan duct upwards through an attic or roof space or downwards through a floor or crawl space.

How to vent a bath fan through the roof 1. If you have access to the attic the fan can vent either through a gable wall or roof. Bathroom ventilation fan duct routing routing a bath vent duct down out or up through an attic or roof out. All municipalities have different requirements but some do not draw a hard line on requiring exhaust fans.

Slide a flat pry bar underneath the. Use the reference hole as a landmark to transfer your measurements from the attic to the ceiling. Slide clamps over the flexible duct at both the roof cap and the fan housing then slip the clamps over the tailpieces. From inside the attic drive a nail through the roof directly above the bathroom vent fan.

Apply a bead of asphalt roof cement on the bottom of the vent. In all cases the ducting needs to conduct the exchaust to the building exterior and needs to terminate in an animal proof vent cover. Nail the lower corners with roofing nails and tar the heads. The lower half of the flange sits on top of the shingles.

The roof cap was done for this stainless steel range hood installation https youtu be 7lvu7lg9zoe was installed a master flow 6 in. Surprisingly bathroom fans are not required by some building codes. From the roof find the nail and use the utility knife to cut roof shingles from around the nail. Avoid venting through a soffit vent or ridge vent.

Slide the vent under the shingles so they cover the top half of the vent flange. Center the nail between. Bathroom code does address the issue of moving odor and moisture laden air from the bathroom to the outside. Wrap the joints with duct tape.

Mark the ceiling back in the bathroom measure the inside dimensions of the vent fan s intake port to determine what size hole you need.