Master flow black 14 in aluminum internally braced roof turbine vent.
14 roof turbin square foot covrage.
A roof turbine ventilator requires only the wind to work.
Let s go through an example for a home with 2000 square feet of attic floor space you ll first divide 2000 by 300 2000 300 6 66.
The quotient is the amount of ventilation you will need for your attic.
Mill finish internally braced wind turbine this roof mounted turbine helps ventilate a home for a more comfortable living environment and features a lightweight all aluminum construction.
Master flow 14 in.
This will give you square inches instead of square feet.
The 12 turbine is available in aluminum and galvanized.
This formula is traditionally used for static roof vents which are rated for net free area in terms of square inches.
Item 790069 model aic14bl.
Get free shipping on qualified roof turbines or buy online pick up in store today in the building materials department.
33 4x16 pieces 20 6x16 pieces 14 8x16 pieces.
As a general rule your roof needs 1 square foot of vent area for every 150 square feet of attic space.
Whirlybird 14 in.
The 14 big whirly turbine moves 37 more air than the 12.
Now take the square footage number and multiply it by 144.
There are also gable and roof fans which actively pull the hot air out of the attic.
A single 14 inch diameter turbine vent that is subjected to 15 mph winds can expel up to 1 342 cfm of air.
Take this number and divide it by three hundred.
Truck tool rental.
Aluminum internally braced turbine head in mill model ath14imi view the master flow mechanical vents 43 49 43 49.
You need 6 66 square feet of attic ventilation.
A small 12 inch diameter turbine vent with a constant wind speed of 5 miles per hour mph can remove 347 cubic feet of air per minute cfm from the attic space.
Thus if your attic is 450 square feet you need roof vents equaling 3 square feet.
Lomanco wind turbines are available in three sizes 8 12 and 14.
For the pro.
Thd sku 435228.
These vents aren t one size fits all though.