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.

Balanced attic ventilation system.

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. 1 being out of balance. 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. This article explains why an incorrect ratio or balance of intake venting and outlet venting in a roof ventilation system can cause more problems than any possible benefit of the roof existing ventilation system.

Figure courtesy of the. Determining attic ventilation requirements for the balanced system. During warmer months ventilation helps to keep attics cool thus a cooler living space. And if your house is sucking from an attached garage a moldy crawl space or dirty attic you could be making things worse.

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. You exhaust stale air from the house and you supply an equal amount of air directly rather than relying on the negative pressure of the house to. To lower attic temperatures and to remove excess moisture. Problems with un balanced roof ventilation intake versus outlet.

Attic ventilation serves two main functions. Roof ventilation is often overlooked particularly when it comes to balance ventilation allows air exchange to take place between the outdoor environment and the attic. If the attic ventilation system is not a balanced combination of intake vents installed in the soffit under eave or at the roof s bottom edge and exhaust vents installed at or near the roof s peak the attic ventilation system will not be efficient and effective. This article series describes various solutions for un vented cathedral ceilings and similar under roof spaces.

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. In short effective attic ventilation also helps cool attic insulation. Figure 1 a balanced system. The way to avoid having a house that sucks is to do balanced ventilation.