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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.
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