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Healthier, longer-lasting roof performance
Normal household activities can wreak havoc on a roof and attic if proper
roof ventilation is not provided: |
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In cold weather, warm air generated by
laundry, showers, dish washing and cooking can linger in the house
and cause moisture build-up. |
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In the summer, heat build-up encourages
premature aging and cracking of wood and roofing materials. Unwanted
heat can also transfer back down into living areas, reducing energy
efficiency. |
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The only way to combat these problems is with a balanced
ventilation system. In a balanced system, wind blowing over the ridge
creates a negative pressure that draws the warmer air out of the attic.
Replacement air enters through the undereave or soffit vents, bathes
the underside of |
| the roof, and exits at the
ridge cap through ridge vents, roof vents or gable vents. Even with
no wind, the natural convection action of rising warm air maintains
a continuous airflow along the underside of the roof. It’s a
system that works year ’round with no moving parts or energy
consumption. |
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The Benefits of Roof Ventilation
- Allows
outside air to flow naturally upward and out of attic.
- Promotes a cooler, drier attic.
- Helps prevent moisture from
becoming trapped in insulation, structural wood, shingles and roof deck.
- Helps prevent rotting, mildew,
drywall damage, peeling paint and warped siding.
- Provides year-round performance
for consistent ventilation without energy consumption.
Ventilation is an essential component of a complete Owens
Corning Roofing System. These Owens Corning ventilation products
will help prevent damage and premature aging caused by moisture in the
winter and excess heat in the summer.
VentSure® Ridge Vents
VentSure® Roof Vents
Raft-R-Mate® Attic Rafter Vents
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Determining
Your Ventilation Requirements
Ventilation Terms and Definitions
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