Extractor Fan Through Roof

Look for the special fans starting at 160 at heating cooling equipment.

Extractor fan through roof. A single exhaust exits through the roof figure a. You mount a switch in each bathroom. First you ll partially block your roof vent with the piping reducing the flow of cooling air through your attic. I have my fan vented out through the roof but near the inside of the roof in my attic the vent leaks a bit and condensation gets on the wood and a bit down in the insulation around where the vent goes out.

This system is quiet too. Second during cold winters you ll be blowing warm moist air onto a cold surface the roof vent and roof plywood. If you re tempted to vent your exhaust fan through an existing roof vent or even vent it into the attic don t do it. However you will need to cut a hole in your glass which is a tricky job for diy beginners contact a glazier if you are unsure.

Depending on the location of the bathroom it may be easy to vent the exhaust fan through the roof. This is often a much easier job as it requires less building work. In order to accomplish this the roof has to have a hole cut in it. I can feel some water around the metal wrapping of the vent where there is an opening.

Because the fan is in the attic you ll hardly hear it. The extractor fan can be installed in the ceiling with ducting through roof eaves to an external wall vent or in the wall straight through to external vent or even in a glass window though this is much less common nowadays.