Attic ventilation keeps attics cool in the summer and dries in the winter. Encouraging natural airflow and circulation allows hot, damp, or stale air to escape. Both hot and cold regions require attic ventilation. A warm attic during the winter might cause snow to melt fast and refreeze as ice. Ice dams on roofs can damage shingles and gutters. Mold and mildew can form in an attic due to hot air condensation.
In warmer regions, a properly vented attic allows hot air to escape from the attic and reduces the cooling strain on air conditioners. In warmer areas, improper ventilation can prematurely wear asphalt shingle roofs, voiding most manufacturer warranties. It can also cause clay and concrete tile roof underlayment failure.
Your local roof and deck builder knows that your home, like you, needs to breathe to keep healthy. Breathing space in your attic and crawlspace helps avoid wet and mold growth. Here are a few things to know about your roof’s ventilation systems.
Benefits of Proper Roof Ventilation
- Increases Energy Efficiency
A properly ventilated roof will effectively allow the absorbed heat of your roofing material to escape when the outside temperature rises. Preventing heat from transferring indoors and lowering the need for air conditioners that use more energy when the indoor temperature is equivalent to the outdoor temperature.
- Prevents Condensation, Mold, and Rot
Moisture rises to your home’s ceilings and ends up in your attic. The warm air that hits a cool surface, like your roof, condenses. The condensation from this “trapping” of air can create a mold and mildew-friendly atmosphere. Proper roof and attic ventilation avoid moisture damage to insulation.
- Increases Roof’s Lifespan
Condensation, rot, and mold are possible outcomes. Non-ventilated roofs can generate excessively hot attics, causing damage to wood framing, rafters, underlayment, and more. Proper roof ventilation, according to roof repair experts, allows that trapped air to escape and increases the life of your roofing system.
- Prevents Ice Damming
Warm air reaching the roof deck melts snow on your roof, causing ice dams. The melted snow can run off your roof and produce ice dams on your home’s overhangs. Warm air from your home will be directed to the roof’s ridge and ultimately outside. It keeps the attic close to the same temperature as the outdoors, reducing snowmelt.
- Reduces Indoor Temperature Extremes
Uneven or non-ventilated roofs might cause significant temperature changes when you go upstairs. Proper ventilation prevents indoor temperature extremes. It lets hot air out and cools the air in. A super-heated attic can increase your heating and cooling expenditures. Overall, good ventilation will make your home more comfortable all year.
Turn to HomePro Exteriors Inc. for your roof replacement needs. Our staff has over three generations of experience in the selling, installation, and service of exterior home improvement projects for residential and commercial properties. Request a free consultation and estimate by calling (845) 299-203 or fill out our online contact form. We serve clients in Warwick, NY.