Under Roof Air Flow System

The vent stack is the pipe leading to the main roof vent.

Under roof air flow system. Taking advantage of this natural process referred to as passive ventilation is the most common way to vent an attic. A new roof is more than just shingles. It also allows fresh air into the plumbing system to help water flow smoothly through the drain pipes however no water runs through the plumbing vent pipe. It is important that air movement occurs and is not impeded by any framing members of the home.

This provides a 1 1 2 high air space above the rafters permitting air to flow along the under side of the roof decking. If you go for the 6 inch version you will find that the product comes with a removable 1 4 x 1 4 inch screen. And a correctly designed system will precisely balance the intake and exhaust ventilation under the roof so that the attic is slightly pressurized preventing conditioned air from being sucked out too quickly through the vents thus. An important part of installing any system of ventilation into your roof system is to make sure that there is a point of entry and a point of exit for airflow.

The roof design should provide plenty of air space for insulation and air flow under the roof and eaves. Hot air exhaust vents located at the peak of the roof allow hot air to escape. For this design to work well on a low sloped not dead flat roof an outside air inlet is provided by a soffit or roof overhang built at the low end of the roof and a roof cavity air vent outlet is provided along the high. Effective attic ventilation systems reduce damaging heat and moisture in your attic promote energy efficiency by helping to reduce the load on your air conditioner in the summer and also reduce the risk of ice dam formation on your roof.

As a homeowner it is important that you review the.