Venting Bathroom Fan Through Metal Roof

The 2 pipes one a 4 master and the other a 3 2nd do not go through the ceiling but into a common box that goes through the roof.

Venting bathroom fan through metal roof.

The rvk1a broan model roof vent ducting kit is for roof ducting installation of exhaust fans with a 3 in or 4 in duct. Bath vent fan installation building codes bath vent fan troubleshooting bath vent fan repair. No need for special tool. Vent bathroom fan through metal roof image of and closet.

Pass the opposite end of the duct through the hole in roof. Next use aviation snips to cut slits into the sheet metal sleeve. Use rigid metal ducting aluminum or galvanized steel with lengthwise seams facing up and joints sealed with foil tape or duct mastic or rigid plastic pipe. Run a thick bead of tri polymer sealant along the underside of vent hood.

How to install a bathroom vent fan. If you vent through a soffit where attic vents are often located the moisture will get sucked back up into the attic or roof venting. The 2nd bathroom vent drips on the floor and is ruining the ceiling. Venting through a roof vent or exhausting them in the attic could cause moisture problems and rot.

This article series explains why bathroom vent fans are needed and describes good bath vent fan choices necessary fan capacity and good bath vent fan and vent duct installation details. The black steel roof cap features. The master bathroom and the 2nd bathroom vent through the roof and through the same opening. I have the same situation a limited storage space above the ceiling which does not extend to the eaves so i must vent my bathroom exhaust fan up through my metal roof.

Take the end of the duct with the connector fitting and attach it to bath vent fan. Vent your bath and kitchen exhaust fans through the roof through a special roof hood. The best exhaust fan venting is through smooth rigid ducts with taped joints and screwed to a special vent hood. Robert s has the largest base flange of any bath roof vent cap which makes it super easy to install and make watertight on the roof.

Since i do not want to pull up the metal roof i must cut a hole through it and the vent cap flashing will sit on top of the metal roof instead of underneath shingles.