2 bathroom exhaust fans vented together, mold problem
bcon268
17 days ago
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? about venting bathroom exhaust fan
Comments (1)I'm not an expert, but from what I've read, you're right, that's not going to be enough. If you haven't already, why don't you ask on some of the GW building forums also to improve your chances of getting this answered before the contractor gets there tomorrow :) Here is some info I've saved from our master bath remodel. Hope you find it helpful. If not, maybe someone else will :) Monica Venting exhaust If he is venting the exhaust into the attic air space, that's bad. Even if there are attic vents (normally gable wall louvered vent panels, or a combination of soffit and ridge vents) in the attic that allow air to move through the space. If he has the end of the duct just pointing at the attic gable vent, that's no good either. The goal is to get the moist air outside the house, not to dump it directly in the attic, or dump it near the gable vent, where air currents can keep the moist air in the attic. If he is bringing the duct up into the attic, then continuing the duct laterally and running the duct out through the gable wall and installing a vent cap out there, then that's a good thing. I prefer the vent to be rigid metal instead of the flex duct, and I prefer the lateral run to be sloped slightly lower as it runs towards the gable wall. I use aluminum tape to tape all seams in the duct, taping both the seam that runs the length of each piece of duct as well as around the circumference where two pieces are joined together. This way if there is any condensate in the duct it runs out the vent instead of pooling and/or running back down into the fan. It's a small, but important detail. Personally, I prefer as few holes in the roof as possible. Mongo Rigid ducts are fairly easy to slope, they just need periodic support along the horizontal run. In a attic it can either be hangers coming down off the rafters, or wood scabbed to the floor joists running up vertically. Oooooh. I didn't think of a brick house. Brick can be more difficult, but it is done. Still with brick, it might actually be easier to go out the roof, but hopefully only if it's on the back side of the house. I'm not certain if venting to the outside is required by code in your area, you could give your local building department a call. If it is a code requirement (it is in my locale), then it should have been included in the scope of the work. After all, he should bid the job and complete it to code, right? Then again, I wouldn't want a ticked off contractor cutting a hole in my brick wall or in my roof while angry and while trying to do it on the cheap....See MoreCold Air coming in through bathroom exhaust fan
Comments (6)OK...problem is now resolved (I think). I managed to get the cover and light fixture out of the unit, then removed the fan assembly to see if I could see things better. There is a contra-flow "flap" that was stuck in an open position. I could close by pushing it shut with a screwdriver, but then when I opened it again, it stayed open. Perhaps some lint build-up or something like that, but anyway, there was a plastic tab that is to act as a counter-balance to make the thing shut again so I attached a small paper clip type thing to it to give it just an extra bit of weight. Now when I push it open with a screwdriver, it opens and then closes back on it's own. As for the venting piece, I really can't see if it's venting directly into the soffit, but I suspect you are right. It is so far back into a corner of the house, it's virtually impossible to see. Thanks to all for your help and advice. I love this kind of teamwork....See MoreBathroom exhaust fan problem - please help
Comments (8)Thanks for your thoughts. The vent levers to the outside wall were opening fully when the fan was on, thus eliminating the possibility of 'stuck levers' or any thing disconnected as being the problem. So, I called Broan and spoke with a man who said it sounded like the motor wasn't doing it's job and in spite of the fan being out of warranty, he was very generous in his offer to send a new motor at no cost. I'm a Broan fan for life as a result. On Monday, our handyman is coming to install the new motor and use spray foam around the opening to the attic which should eliminate the 'attic smell'. I think that sealing up this gap will also improve the fan 'draw'. I can always count on my Gardenweb family to come to my rescue ~ thanks for your time ! gardening annie...See MoreQuestion regarding Bathroom Exhaust Venting
Comments (6)I'm not sure about your proposed solution but I had another thought. It sounds like you have access to the attic. What if you went up there and air sealed around the fan? We are building a new house and I wasn't happy with the fan installation so I used a bunch of quality tape to seal up the connection to the flex pipe and sealed holes in the housing. You could also try insulating the entire length of the flex pipe. Good luck....See Morebcon268
17 days agobcon268
16 days agobcon268
14 days ago
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