Insulate the bathroom vent hose to outside?
I was in the attic the other day and i noticed the flexible duct that goes from my bathroom vent to the roof was pretty flimsy, is it worth insulating the ductwork and sealing the cap on the roof?
I tried a few google searches and it looks like there could be some condensation issues if its hot in the bathroom and cold in the attic and vice versa.
My question is, is it worth it? Thanks