How Much Roof Ventilation

However we rarely think like that for roofs even though they undoubtedly require ventilation.

How much roof ventilation.

Before we explore how to ventilate an attic space it is prudent to understand how much ventilation is needed. How much ventilation does a flat roof need. Proper attic ventilation consists of a balance between air intake at your eaves soffits or fascias and air exhaust at or near your roof ridge. The key to proper ventilation of your roof and attic is balance.

A wind turbine catches the wind and spins a fan which pulls hot air outside. Ventilation can be accomplished using various products and techniques. Allows cool dry air to enter the attic. Many people falsely assume that their roof doesn t require ventilation.

It makes sense as all of us know that the most humid rooms in the house like the bathroom and kitchen need it. Choose one of the following products to meet the recommended intake nfva of 528 square inches. The amount of space you devote to intake must be equal to the amount you allow for exhaust and these must be calculated according to the size of your attic and slope of your roof. The following product options will allow you to achieve an intake nfva of 528 square inches.

With a power switch or a thermostat installation an attic fan can be turned on to let hot air from the attic out. The two main dangers associated with too much ventilation involve roof damage and increased utility bills. Most building codes require a ratio of 1 150 ventilation space to attic floor space.