farmboy101
New Member
Hi All....I am perplexed.....
Just did a complete reno adding a top of the line shower, body sprays, rain shower head etc etc. The size of the bathroom is approx 40 sqft and half of the space is the shower. So we figured that we should upgrade the fan and we installed a NuTone 110 CFM as we thought the increase in the steam from shower upgrades would be necessary. Totally love the shower but we are finding that before the end of the shower the fan is dripping water quite alot!....So thought ok we need to double check everything so we installed insulation all around the metal fan housing thinking the metal was cold and the steam was condensating rather instantly. We also covered this glued on insulation with a vapour barrier plastic 'hood' (sorry not sure what they are called) More commonly used on electrical boxes. Tuct taped all the joints to make sure we have a good seal. Then removed the metal ducting and replaced it with the insulated ducting pipe, double checked the flapper valve (works fine) and vented it as it was, out the soffit where there is a proper vent for the fan. Now we also thought we would add an extra some bats of insulation on top of all this along with all the newly blown in insulation.
My question is does anyone think the fan is too big for the size of the room?? At a loss...after doing all the redo on the venting we were so discouraged that we still have the same issue....
Please help these poor discouraged DIY ers. WE have resorted now to not using the fan and just open the window, but know this is not the solution.....Also FYI we took out the old fan which was a 50 CFM....which we never had a problem with it dripping...????? Please help.....
thanks very much, fb


Just did a complete reno adding a top of the line shower, body sprays, rain shower head etc etc. The size of the bathroom is approx 40 sqft and half of the space is the shower. So we figured that we should upgrade the fan and we installed a NuTone 110 CFM as we thought the increase in the steam from shower upgrades would be necessary. Totally love the shower but we are finding that before the end of the shower the fan is dripping water quite alot!....So thought ok we need to double check everything so we installed insulation all around the metal fan housing thinking the metal was cold and the steam was condensating rather instantly. We also covered this glued on insulation with a vapour barrier plastic 'hood' (sorry not sure what they are called) More commonly used on electrical boxes. Tuct taped all the joints to make sure we have a good seal. Then removed the metal ducting and replaced it with the insulated ducting pipe, double checked the flapper valve (works fine) and vented it as it was, out the soffit where there is a proper vent for the fan. Now we also thought we would add an extra some bats of insulation on top of all this along with all the newly blown in insulation.
My question is does anyone think the fan is too big for the size of the room?? At a loss...after doing all the redo on the venting we were so discouraged that we still have the same issue....
Please help these poor discouraged DIY ers. WE have resorted now to not using the fan and just open the window, but know this is not the solution.....Also FYI we took out the old fan which was a 50 CFM....which we never had a problem with it dripping...????? Please help.....
thanks very much, fb