Under Roof Air Flow System

Air flows in through the soffit vents and out through the roof vents.

Under roof air flow system.

The term refers to a system which allows air to flow through the intake and exhaust. 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 increasing heating and cooling costs. A new roof is more than just shingles. Roof ventilation is not a new process by any means.

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. We chose rectangular hooded roofing vents and rectangular soffit vents because they re easy to install. Roof ventilation ventilation provides the conditions that allow air to flow out with the hot air and in with the cool air. Hot air exhaust vents located at the peak of the roof allow hot air to escape.

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. Vents come in various styles. In cool or cold weather conditions scientists confirmed that direct nailed asphalt shingle roofs had significantly larger heat loss than attics with metal shakes and above sheathing ventilation. The early to mid 20th century saw the development of this concept.

Metal roof coatings with solar reflectance can help building owners save substantially in annual cooling costs. When stale overheated air in your home or attic is vented out and fresh air is pulled in you have an air exchange effective ventilation requires a balancing act. The roof design should provide plenty of air space for insulation and air flow under the roof and eaves. 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 building.

As a homeowner it is important that you review the soffit areas of the home for soffit vents. It is important that air movement occurs and is not impeded by any framing members of the home.