Too Cold To Install Bath Vent In Roof

A michael maines answers and gives advice on the question about bath fan venting for cold climates.

Too cold to install bath vent in roof. This old house general contractor tom silva shows how to properly install a roof mounted bath fan vent. Vent your bath and kitchen exhaust fans through the roof through a special roof hood. How to install a bathroom vent fan. The common solutions to this ice problem are to use a higher powered fan use a larger diameter shorter duct run and wrap the pipe with better duct insulation.

The best exhaust fan venting is through smooth rigid ducts with taped joints and screwed to a special vent hood. Bath vent fan installation building codes bath vent fan troubleshooting bath vent fan repair. 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. 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.

Here in the north we vent the bathroom exhaust through a bulkhead to the exterior wall the exhaust ducting is insulated and has a slight slope to the exterior wall to allow any condensation to escape we also install a 5 6 length of plywood at the eaves so the exhaust can t get into the attic space. The house is too high to see if that box has any kind of fitting on the roof but it doesn t look like it from the attic. See below for a shopping list and tools subscribe.