No Vent In Attic

This creates a natural air flow by drawing in the air from outside pushing it up and out through the vent at the top of the house.

No vent in attic.

Studor vents are a very popular kind of air admittance valve that works really well. Too often mechanical ventilation ducts from bathrooms kitchens or laundry rooms deposit warm moist air into the attic instead of outside the building envelope. This negative pressure causes the vent to open and let in enough air to relieve the pressure. Static roof line vents are effective for ventilation but generally aren t recommended due to issues with leaks.

For proper ventilation it isn t enough for air to simply get into your attic. This is called passive ventilation. For an attic without soffit vents you may have the option to use gable vents instead. Normal vented air likes to enter the attic lower down near the bottom third of the attic and as it passes through it will exit higher up near the top third of the attic space.

How to vent an attic with no eaves the function of soffit vents. Problems when roof has no overhang. A combination of air sealing and insulating the attic floor while providing ventilation considerably reduces the potential for condensation as warm moist air is less likely to enter the space and condense on cold surfaces. Without baffles blinders that prevent outside air from crossing over the vent a ridge vent may create almost no ventilation at all.

The design of many older houses omits eaves which maximizes the amount of sunlight. Typically you would have a gable vent on each end of the attic.