This Old House Bathroom Vent

Bathroom vent fans are rated by how many cubic feet of air they can move in one minute known as the cfm rating.

This old house bathroom vent. That s why we asked this old house general contractor tom silva to show us how. Options for fixing bathroom ventilation problems. Drive nail through house wall from attic.

In this video this old house general contractor tom silva explains how to vent a bathroom fan. This will serve as a reference point for positioning the wall cap. The fan should be on anytime somebody takes a bath or shower because when you have humidity building up in a bathroom you invite mold and mildew to form.

Keeping a bathroom dry and mold free is just a matter of making sure the stale and humid air has a way to escape. The bathroom here is below an accessible attic so tom ran the exhaust duct across the attic and out a gable end. From outside use 4 inch hole saw to cut hole for wall cap.

An unvented bathroom sink may have a full s trap which may siphon and expose the home to sewer gas. From the roof find the nail and use the utility knife to cut roof shingles from. In this video hvac contractor eric downs and ask toh host kevin o connor review how to properly vent a bathroom without replacing the bad air with more bad air.

Install a recirculating fan in a half bath. But these unconventional installations are best handled by an experienced hvac contractor. In this video this old house general contractor tom silva shows how to properly install a roof mounted bath fan vent.

Center the nail between two rafters. This type of bath fan doesn t exhaust air to the exterior. Before doing any plumbing work turn off the water at the main water supply or at local service valves.