Attic Venting For 1500 Sq Ft

6 measure the radius of round vents or take half the diameter of the.

Attic venting for 1500 sq ft.

For example a 6 by 12 inch soffit vent has 72 square inches which when divided by 144 results in a 0 5 square foot opening. It can quickly remove a larger volume of hot and or humid air from your attic when compared to static ventilation. It is designed for attic spaces up to 2800 sq. Add an additional 20 cfm x 1 20 if you have a steep roof and 15 cfm x 1 15 for a dark roof.

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. Federal housing authority recommends a minimum of at least 1 square foot of attic ventilation evenly split between intake and exhaust for every 300 square feet of attic floor space. Now let s figure out how much ventilation space we need. Of vent space for every 150 sq.

Based on your 1100 sq. Net free area in square inches. Ventilation area in square feet. This in turn can help save money on your heating and cooling costs.

Calculate or enter the square footage of the attic or area to be vented. Attic x 0 7 700 cfm minimum fan rating. Building codes vary. Ft you divide that by 150 to get 10 sq.

Energy efficient uses up to 15 less electricity than typical competitors vents based on gaf testing at 120 volts helps to reduce energy costs and helps prolong life of the roof and shingles. The erv5 model power roof mount vent can move air at a rate of up to 1250 cu. So if your attic is 1 500 sq. 1 500 square feet.

So in our example we will divide the 1 500 square feet by 300. Ideally half the vents should be located in the soffit at the bottom of the roof and half in gable or ridge vents near the top. Attic area in square feet. The erv6 model power roof mount vent can move air at a rate of up to 1500 cu.

In order to facilitate this exchange of warm and cool air the general rule of thumb suggests installing at least 1 sq. Remember the minimum area requirement when using a continuous system is a ratio of 1 300. 30 feet x 50 feet 1 500 square feet. Ok so now we know the square footage of the attic area to be ventilated.

It is designed for attic spaces up to 2200 sq. More product. Of vent for every 300 sq. The rule of thumb on the amount of vent space needed is approximately 1 sq.