Hot air exhaust vents located at the peak of the roof allow hot air to escape.
Roof intake ventilation.
Multiple types of vents can work together to create an equal inflow of cool air and outflow of hot air in your house.
Generally as the roof pitch increases the volume inside the attic also increases along with the amount of needed attic ventilation.
Commercial attic vents the keepa attic vent is built exclusively for flat roof ventilation roof pitch is 2 12 or less.
Current irc requirements do not factor the role a roof s pitch plays in the amount of attic ventilation needed but ventilation manufacturers do.
The following product options will allow you to achieve an intake nfva of 528 square inches.
It alleviates moisture in the winter and heat in the summer to extend roof membrane life.
Keeping your attic well ventilated may even reduce your energy costs durable construction for long lasting performance.
Ventsure inflow intake vent.
Choose one of the following products to meet the recommended intake nfva of 528 square inches.
Tips for assessing your needs.
The keepa attic vent is used for ventilating attics and or plenum as a roof exhaust vent or as an air intake roof vent.
Exhaust vents like attic fans ridge vents are primarily placed at the very top of the roof or the highest pitch where hot air gathers.
Effective attic ventilation systems reduce damaging heat and moisture in your attic promote energy efficiency by helping to reduce the load on your air conditioner in the summer and also reduce the risk of ice dam formation on your roof.
Intake vents such as soffits are placed lower on the roof usually under the eaves.
Certainteed intake vent provides continuous intake airflow at the roof s edge and provides proper intake ventilation for homes with little or no overhang.
See the benefits of attic ventilation a new roof is more than just shingles.
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.
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.
As part of a ventsure balanced air ventilation system of intake and exhaust the ventsure inflow vent helps reduce heat and moisture buildup that can lead to ice damming and roof deterioration.
Here s a rule of thumb to follow.
Intake vents located at the lowest part of the roof under the eaves allow cool air to enter the attic.
Soffit vents are one of the most popular intake vent styles.
The inflow vent is an ideal solution for roofs without soffits or used as a supplemental intake on roofs requiring additional ventilation.
Allows cool dry air to enter the attic.
