Vent Attic Or Not

However most varieties require electricity to operate need proper upkeep and can be noisy.

Vent attic or not.

Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents. However the opposite is true if the attic floor is air sealed and insulated. Both ways can work well. You need to some way of getting rid of it otherwise the attic will turn into a moldy mess.

If water or air ducts run through your attic space they are less likely to be affected by extreme temperatures and this can save you money on utility costs. Even when outside air is hot and humid if the attic space is air sealed from the interior it is much hotter than outside air. You ll need to vent your attic because water vapor showers laundry people will still migrate through the ceiling into the attic space. Should you vent a metal roof.

In an attic the primary driving force is the buoyancy of warm air rising in the vault of the roof. Without exception you should talk to a professional to determine what your home requires. As the warm air escapes through vents high on the roof cooler air enters the lower vents. That said air resistance and interference such as vent grates reduces the area of true ventilation.

Attic fans can be useful if you don t have proper passive ventilation. The other option of course is a vented attic which requires an equal balance of intake and exhaust vents. If you ve accidentally painted over air vents insulated soffit venting or covered up an exhaust port then an attic fan can be helpful to move air around. Roofs need a driving force to move air in and out and intake and exhaust vent openings large enough to facilitate this movement.

As such it would seem venting the attic would increase the potential for condensation. According to the homeowners trade resource center htrc a properly conditioned and sealed attic will eliminate the formation of ice dams.