How Many Turbines Do I Need On My Roof

What are roof turbines.

How many turbines do i need on my roof.

To calculate the number of 750 vents needed divide 480 by 50 to get 9 6 vents. Do roof turbines require maintenance. This will give you square inches instead of square feet. In contrast an active ventilation device might be an electric powered whole house fan or a powered roof ventilator.

Because you always want your intake nfa to meet or exceed the amount of exhaust nfa we will take the amount of exhaust provided and divide by the nfa rating of the deck air. Good attic ventilation is important for preventing ice dams in the winter. Having the correct number of turbine vents will provide an effective and balanced system. Turbine vents have been used for many years in both residential commercial agricultural and industrial buildings.

Roof turbines remove attic moisture and reduce the risk of costly roof damage. There is a mathematical equation to determine how much venting you will need. Some turbines have ball bearings that need occasional lubrication. During summer months turbines eliminate hot air from your attic helping you cool your home.

These can be ridge vents wind turbines or the flat vents your roofer wants to install. The vents are very affordable easy to install and they pump vast amounts of air from attic spaces. Small turbine lots of air. Rounding up you would need ten 10 750 vents.

Made in the usa. How to install a lomanco whirlybird turbine vent add ventilation your roof s attic space. Attic must have 5 sq. I d put three or four on a roof to really have a good chance at cooling an attic on a hot summer day.

Furthermore this will ensure that a continuous supply of air moves through the desired space. A roof turbine is a relatively small vent that utilizes the wind to remove humid air from an attic. Ft of vent space half dedicated for air intake in the soffits and the other half for exhaust on the roof. As the wind passes through the turbine vent a series of vanes within the turbine spin cycling humid air out of the attic.

As a general rule your roof needs 1 square foot of vent area for every 150 square feet of attic space. Roof turbines are typically 12 or 14 inches square so they take up minimal space. Since turbines are attached directly to attic spaces they can siphon. Thus if your attic is 450 square feet you need roof vents equaling 3 square feet.

There are also gable and roof fans which actively pull the hot air out of the attic. Click here to see an assortment of turbine vents that i ve used on my jobs. How many turbine vents you will need depends on a number of factors including the size and type of building. A simple application of wd 40 should do the job.

The benefits of using a turbine.