Attic Intaek Vents

The two roof ventilation options intake vents and exhaust vents should be placed to take advantage of the natural increased speed of air circulation.

Attic intaek vents.

This occurs through the rising of warm air and the falling of cooler air. Intake vents such as soffits are placed lower on the roof usually under the eaves. 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. Of course there should be intake vents to ensure a balanced system.

Figure 7 mechanical ventilation used with a hip roof. 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. While hardly anybody agrees on the best roof ventilation system everybody agrees some roof vents do hardly any good at all. And in many of these cases the hip roof forms a large volumetric attic space to ventilate.

Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents. Enter square footage calculate or enter the square footage of the attic or area to be vented. Intake vents located at the lowest part of the roof under the eaves allow cool. Soffit vents are one of the most popular intake vent styles.

The majority of roofing experts agree that ridge vents are the most effective and cost effective roof vents available. I have roof vents so i have roof ventilation. Take for example ridge vents. Additionally any excess intake will become exhaust on the leeward side of the house because the intake vents on the windward side of the house will have.

How do you pick the right attic vent. They are easy to install under the roof s overhang which is known as the soffit are generally hidden from sight and provide excellent protection from weather outdoor debris and pests while still allowing air to flow into the attic. It s important there is a balance between the intake and exhaust ventilation to help ensure air flows smoothly and efficiently. In order to create a consistent flow of cool dry air through your attic you need to make sure the air has a way to come in and go out.

One method is to use a powered attic vent with a humidistat thermostat located close to the ridge or top of the roof.