Venting Fans Into Attic
I would by lying if i told you that it will cause problems it may be totally fine.
Venting fans into attic. One static vent style is the turbine vent which uses wind to power its enclosed fan all it takes is a light breeze to rotate the blades and suck heat out of the attic view example on the home. The master flow erv5 power roof vent is the master flow erv5 power roof vent is a great overall investment in attic ventilation. No you cannot vent the bathroom exhaust fan into the soffit vents. The lowdown on venting your bath fan into an attic is that it can be done but it should terminate on the outside.
It can quickly remove a larger volume of hot and or humid air from your attic when compared to static ventilation. Bathroom exhaust fans perform an important function by removing excess moisture from your home. Can you vent a bathroom exhaust fan into the soffit vents. If you vent the bathroom exhaust fan to close to the soffit vents which are vented plates under your homes outer edge and roof your home the air can be sucked right back into the attic from the soffit.
The altered more powerful airflow blasts decades old dust through every crevice it can find. In fact i have seen numerous houses that haven t yet had signs of mold with the bath fan venting incorrectly. This prevents hot air from seeping into your home and driving up the temperature in the living space which reduces the load on your air conditioner. When venting a bathroom exhaust fan make sure to vent the air to the outside rather than into your attic where it can cause mold and mildew to form.
Attic ventilation fans help cool air your attic by pushing out the stifling hot air from inside the attic and bringing in cool air from outside. You d often blow air from one bathroom into the other and local building inspectors wouldn t approve it. This in turn can help save money on your heating and cooling costs. The result is a cooler attic space with plenty of air exchange.
First you ll partially block your roof vent with the piping reducing the flow of cooling air through your attic. This setup requires an in line centrifugal fan mounted in the attic drawing air simultaneously from both bathrooms see photo. Ever since a roofer talked my husband into replacing the broken attic fan with a ridge vent we re getting tons of dust in the living areas. If you re tempted to vent your exhaust fan through an existing roof vent or even vent it into the attic don t do it.
But while you can t have two fans with one vent you can make one fan and one vent serve two bathrooms.