Extractor Fan Through Roof

In order to accomplish this the roof has to have a hole cut in it.

Extractor fan through roof.

Look for the special fans starting at 160 at heating cooling equipment. A grille in each bathroom attaches to ducts which then fasten to a y connector at the fan. This system is quiet too. You mount a switch in each bathroom.

I can feel some water around the metal wrapping of the vent where there is an opening. 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. A single exhaust exits through the roof figure a. 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.

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. Depending on the location of the bathroom it may be easy to vent the exhaust fan through the roof. First you ll partially block your roof vent with the piping reducing the flow of cooling air through your attic. This is often a much easier job as it requires less building work.

Second during cold winters you ll be blowing warm moist air onto a cold surface the roof vent and roof plywood. Because the fan is in the attic you ll hardly hear it.