A: The NFA, 5.17, is for each individual product. Area of a product is not the same as Net Free Area. If you have any other inquiries about our Master Flow products please email email@example.com.
A: It is a 4 inch circle, and Pi times radius squared = Area. - - 4 times Pi (3.1415927) is just over 12 square inches, that is per unit --- --- If you really want to get technical, the louvers take up some of the area. You can deduct some for that.
A: It is designed for the soffit overhang, the gutter may block the airflow, also you want to be careful of wind driven rain blowing into the vent if installed incorrectly. If you have any other inquiries about our Master Flow products please email firstname.lastname@example.org.
A: Yes, I believe so but it does not have any kind of screen to keep bugs out.
A: That is where it is meant to go. Just place between framing. They work and look great.
A: Net Free Area, this is the actual open area of a vent which will allow air passage. If you have any other inquiries about our Master Flow products please email email@example.com .
A: These typically will not be secure in a steel soffit. If you have any other inquiries about our Master Flow products please call Technical Services at 800-211-9612.
A: The flange on the back is about 1 inch deep and the vents are about 4 inches in diameter. You may need many of these vents to provide significant ventilation. I installed them through 3/4" pine in a covered patio and they work great for ventilating a small attic.
|Brand||Master Flow||Active Ventilation||Master Flow|
|Name||3 in. Brandguard Galvanized Steel Fire/Ember Resistant Soffit Vent||4 in. Resin Circular Mini Wall Louver Soffit Vent in White (4-Pack)||2 in. Aluminum Round Soffit Vent in White (6-Pack)||16.5 in. x 1.5 in. Rectangular Almond Built-in Screen Galvanized Steel Soffit Vent|
|Net-Free Area (Sq. In.)||2||5.17||0.8||56|
|Features||Corrosion Resistant, Paintable, Screen Included, UV Resistant||UV Resistant||Built-in Screen, Corrosion Resistant, Paintable, UV Resistant||Built-in Screen|
|View Product||View Product||View Product||View Product|