Roof Air Ventilation System

Prior to installing the ridge vent a 1 inch wide strip of roof decking is cut out along both sides of the ridgeline to allow for air movement through the vent.

Roof air ventilation system.

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. A ridge vent is a ventilation strip that is placed along the ridgeline of the home. In short an adequate and balanced ventilation system is one that allows an equal amount of air to enter and exit the attic area. Build your roof empowers you to select each layer and component that goes into your total protection roofing system so that you get the roof you want to protect.

I have roof vents so i have roof ventilation. The early to mid 20th century saw the development of this concept. When installed as part of a properly balanced when installed as part of a properly balanced attic ventilation system gaf cobra exhaust vent is a shingle over exhaust vent installed at the roof ridge that helps exhaust excess heat and moisture from your attic. Hot air exhaust vents located at the peak of the roof allow hot air to escape.

It comes on an easy to install flexible mesh roll and is hand nailable with no complicated fitting wrapping nail gun adapters. While hardly anybody agrees on the best roof ventilation system everybody agrees some roof vents do hardly any good at all. A home s ventilation system consists of everything from roof vents to the best attic fans without the right roofing and attic ventilation system your home can become uncomfortable and cost more to cool or heat. The majority of roofing experts agree that ridge vents are the most effective and cost effective roof vents available.

What exactly does that mean. Owens corning recommends a balanced ventilation system based on the u s. For all roof designs however the most important feature of a roof ventilation system is adequate and balanced airflow. Taking advantage of this natural process referred to as passive ventilation is the most common way to vent an attic.

It is important that air movement occurs and is not impeded by any framing members of the. Big organizations like the forest products laboratory and even the american society of heating refrigerating air conditioning engineers realized that poor roof ventilation systems could cause condensation problems in a. In a hot climate roof vents expel hot air from the roof or attic while relieving the load on the air conditioning system. Roof ventilation is not a new process by any means.

The building codes and building science for natural roof ventilation however only appeared in the 1940s. Plus roofing and attic ventilation systems can protect homes from the expensive roof and structural damage caused by trapped heat ice dams moisture and mold. Take for example ridge vents.