Balanced Attic Ventilation System

You can do this with a bath fan installed to blow air into the home or you can use a fan made specially for this task.

Balanced attic ventilation system.

Lowering the temperature in the attic can help reduce air conditioning energy costs and roof deck temperature optimize the service life of a roof covering and minimize ice damming. In summer and warmer months outside temperatures intensify the effects of this heated air. To lower attic temperatures and to remove excess moisture. In cold weather ventilation helps remove moist air from the attic that has migrated from the occupied living space reducing the risk of condensation in the attic.

Roofing and attic ventilation systems are designed to work year round to balance the intake of cool air and the outflow of warm air in the home. During warmer months ventilation helps to keep attics cool thus a cooler living space. A balanced ventilation system as opposed to supply only or exhaust only system has two fans. The video explains how only a balanced system of both intake vents and exhaust vents can maximize the attic vents ability to help.

They have two basic models. In most balanced ventilation systems heat and sometimes moisture are exchanged between the two airstreams reducing the heating and cooling loads caused by outside. One bringing outside air into the building and the other exhausting stale interior air resulting in roughly balanced airflows. The balanced approach helps to optimize air exchange between the attic and the outdoors and allows for effective management of temperature and moisture inside the attic.

Reduce heat buildup r. A balanced attic ventilation system will provide added comfort to the living space help protect against damage to materials and structure and help reduce energy consumption during all our seasons of the year. A roof with a balanced ventilation system has an equal distribution of intake and exhaust vents 50 percent near the eaves and 50 percent near the ridge. These systems do not significantly affect the pressure of the interior space with respect to outdoors.

No matter what month it is hot air will accumulate in the attic at the peak of the roof. Another way to get balanced ventilation is to use the exhaust fans with controls and also install a supply fan. I m thinking of the qufresh fan made by air king. In other words the entire vent opening doesn t count as vented space.

Attic ventilation serves two main functions. An under roof cathedral ceiling or attic ventilation system to help the building in any way needs to be properly designed and installed with adequate intake venting at the eaves outlet venting at the ridge and with careful sealing of air leaks from the occupied space into the attic or roof cavity to avoid heat losses or increases in both moisture movement into the roof cavity and increased heating or cooling costs.