How Much Roof Vents Do I Need

Rafter vents or insulation baffles install in any rafter space to create narrow gaps that direct fresh air from the soffit vents to the peak of the roof.

How much roof vents do i need.

Static vents come in a variety of different styles and sizes but are all non motorized vents installed near the roof ridge to allow for unobstructed flow of air from the attic. If you house is something other than a rectangle you will need to calculate the area length x width of the individual sections of your house. Enter square footage calculate or enter the square footage of the attic or area to be vented. There are a number of different types of vents to choose from so getting the ones to suit you should not be difficult although you will still need to work out how many to purchase.

All you need to measure is the length and width of your house and enter them into the vent calculator below. Thus if your attic is 450 square feet you need roof vents equaling 3 square feet. How much ventilation does a hot roof need. How to install a garage vent.

To calculate the amount of ventilation you need for your home visit gaf s ventilation calculator now. These specialty vents do not affect the. Also your building codes may dictate how many and which kind of vents you. Even if you have vents in your roof you still need to have soffit vents to allow the air to circulate naturally.

Then add those all together and enter the total into the area. While hardly anybody agrees on the best roof ventilation system everybody agrees some roof vents do hardly any good at all. If there are more than one they are centered between the rafters and installed at regular intervals in a horizontal line along the roof. That depends on a few different variables including the size of the roof the roofing material and what the building will be used for.

Soffit vents are vital in keeping air flowing throughout your attic space. I have roof vents so i have roof ventilation. If you want to find out how many of these vents your roof requires feel free to schedule a free roofing estimate with 1 800 hansons. If you have a hot roof or are getting one installed how much ventilation will it need.

It will do the rest for you. The exact amount of air vents depends on the type and size of your roof. They should be divided equally between inlet and outlet vents and they can be used in any combination that will work with your roof s design. Proper attic ventilation can help reduce the load on your air conditioner.

Let owens corning roofing help you calculate exactly how much ventilation you will need for a healthy and balanced attic with our 4 step ventilation calculator.