2 see master flow powered ventilation products limited warranty for complete coverage and restrictions.
Gaf attic ventilation fans.
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.
Gaf roof vents roofing attic ventilation the home depot store finder.
Hit the calculate button for the recommended amount of exhaust and intake ventilation.
Enter the length and width of the attic floor or the total square footage of the attic floor.
1 based on gaf ashrae ansi standard airflow testing.
The amount of exhaust ventilation should never exceed the amount of soffit ventilation.
Master flow adjustable humidistat thermostat ht1 is a fully adjustable combination thermostat and humidistat to help power attic vents reduce damaging heat and moisture in the attic.
Find gaf s documents for master flow power attic vent erv4 roof mount here.
See quantities below for each gaf ventilation product typically rounded up.
Master flow power attic vents exhaust a large volume of hot humid air from the attic which can help save on cooling costs.
Get all the details on the master flow power attic vent roof mount erv4 here.
This american designed fan is designed to reduce attic temperatures and remove destructive moisture thus making your home more comfortable and reducing the load on your hvac system and lowering your electricity bills.
Get free shipping on qualified gaf roofing attic ventilation or buy online pick up in store today in the building materials department.
The first step is to check out this 60 second video and learn about the 300 1 rule the difference between intake and exhaust ventilation and why proper ventilation is so important to get right to help calculate your attic ventilation needs visit gaf ventilation calculator.
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.