Attic Ceiling Vent

Generally speaking you need a ratio of 1 300 where for every 300 square feet of ceiling space you need 1 square foot of attic ventilation.

Attic ceiling vent.

Your roof may have a ridge vent which is a low profile continuous roof air vent running along the peak of the roof. That said air resistance and interference such as vent grates reduces the area of true ventilation. Improper ventilation and insulation of home attic space can produce high humidity levels and trap. However they work best with airtight ceiling attic interfaces and where ductwork and air handlers are not located within attic spaces.

Condensation on your ceiling can cause water damage and promote the growth of mold or mildew. The increase in the use of complex roof shapes and cathedral ceilings has resulted in problems with vented roofs. Vented attic roof designs have the advantage of a long proven historical track record. This cap features both a back draft damper and bird screen preventing outside air from entering the home and birds and small pests from entering duct work.

Attic fans perform this ventilation by pushing hot air out into the environment while also pulling fresh cool air into the attic. Or it may have gable vents which are louvered openings at the top of gables. The rvk1a steel roof cap kit is an the rvk1a steel roof cap kit is an easy to install vent for ventilation fans bath rec room home gym etc.