I would like to install an extractor fan in my bathroom, however due to its location the only way I can attach the outlet for the duct is through the slate roof. All of the extractor fans I see for sale have a flat outlet grill for mounting on the wall or under eves.
Can anybody advise what outlet I can/should use through the roof to prevent water coming in and whether this is feasible and how to get it through the slate?
Can anybody advise what outlet I can/should use through the roof to prevent water coming in and whether this is feasible and how to get it through the slate?