Is it customary to cover the fan 39 s top housing with some kind of a cap to protect it from being contaminated with the insulation dust.
Blown insulation over bathroom fan.
Keep calm if that happens to you.
Using a saw cleanly cut all a hole in the ceiling drywall no more than 1 inch larger in diameter than the fan box.
Air seal around kitchen and bathroom exhaust fans to keep conditioned air from leaking into unconditioned space.
Both can be added to uninsulated attics or layered over existing material.
The attic 39 s insulation cold climate is blown cellulose particles.
Check the directions specifications of your exhaust fan it should say if it is rated to have insulation next to or on top of it.
He result of the insulation problem around a bathroom exhaust fan is either water stains or mold near the vent of your bathroom.
For diy attic insulation you ve got two choices.
All you have.
Loose fill or batt the common term for blanket insulation.
It would probably be a good idea to seal the vapour barrier back around the fan.
Insulating your attic can significantly decrease your heating and cooling costs.
Seal holes in the fan housing with caulk sealing putty or metal tape.
However blown insulation can create a fire hazard if it comes in contact with electrical fixtures.
Bathroom vent fan ductwork insulation.
An exhaust fan has been added to the upper floor bathroom.
Insulate the bathroom exhaust vent fan ducts.