JJLJr
New Member
I recently purchased a house. The bathroom did not have fan and so I knew eventually I would have to install one. Over the last few days, my wife and I have noticed some small mold spots on the ceiling. The spots look like someone took a pencil and started poking onto the ceiling.
Over the weekend, I installed a new combo light/fan. The bathroom is about 60 sq ft with a 7 1/2 ft ceiling. I installed a Broan 683L which moves 80 CFM and is 2.5 sones. The fan is installed in the ceiling next to the tub. I vented the fan through the soffet with about 8 ft of flex duct. The duct work is straight with no bends except there is a 90 degree elbow at the soffet and a soffet vent on the end.
I tested the fan to make sure it was moving air. I placed my hand at the soffet vent and felt a lot of air. I figured the wet walls and ceilings would be gone. However, when my wife took a shower, the walls and ceiling in the shower area were still very wet. We did let the fan run for 10-15 minutes after the shower and that seemed to dry everything.
I have a coouple of questions. With a the size of the bathroom, is unrealisitic to expect the ceilings and walls to be dry right after the shower? Is there anything else we can do to help reduce the moisture? I usually leave the door open slightly to allow air to get into the bathroom. Is that a good idea? Also, I know the house has inadequate ventilation in the attic and an inadequate amount of insulation. I plan on having a ridge vent and soffet vents added and will then add more insulation. Will that help the moisture problem? We don't have mold in any other room.
Thanks for your help.
Over the weekend, I installed a new combo light/fan. The bathroom is about 60 sq ft with a 7 1/2 ft ceiling. I installed a Broan 683L which moves 80 CFM and is 2.5 sones. The fan is installed in the ceiling next to the tub. I vented the fan through the soffet with about 8 ft of flex duct. The duct work is straight with no bends except there is a 90 degree elbow at the soffet and a soffet vent on the end.
I tested the fan to make sure it was moving air. I placed my hand at the soffet vent and felt a lot of air. I figured the wet walls and ceilings would be gone. However, when my wife took a shower, the walls and ceiling in the shower area were still very wet. We did let the fan run for 10-15 minutes after the shower and that seemed to dry everything.
I have a coouple of questions. With a the size of the bathroom, is unrealisitic to expect the ceilings and walls to be dry right after the shower? Is there anything else we can do to help reduce the moisture? I usually leave the door open slightly to allow air to get into the bathroom. Is that a good idea? Also, I know the house has inadequate ventilation in the attic and an inadequate amount of insulation. I plan on having a ridge vent and soffet vents added and will then add more insulation. Will that help the moisture problem? We don't have mold in any other room.
Thanks for your help.