If you’ve ever seen pipes coming up from your roofing or those around your neighborhood, then you’ve seen a ventilation pipe. These metal or plastic pipes are a small addition to any roof but they play quite a big role in roof maintenance: they help ventilate your roof and your attic.
Roof ventilation is an important part of home construction. In fact, it is important enough to warrant its own requirement in residential building codes. Section R806.2 and 1203.2 of the International Residential and Building Code specifies roof venting requirements for any home. Admittedly, these codes are mainly for professional roofers and may not immediately demonstrate the benefits of proper roof ventilation. John Peters Roofing shares how roofing ventilation helps your home.
Proper Air Circulation
In most homes, roofing ventilation is a passive system. An intake vent, typically positioned under the soffit, allows air to come into the roof. As this air warms up, it rises naturally and exits through a second vent in the gables or on the roof itself. This circulation plays two important roles. During winter, the air helps keep the roof within the same temperature as the air outside, which keeps the formation of ice dams at bay. In the summer, the moving air helps heat escape from your roof, alleviating the strain on your air conditioning and making your home more energy-efficient.
Minimizing Water and Moisture Damage
Water vapor naturally present in the air condenses into water when left to stagnate within your attic. The moisture levels typically find themselves on parts of your home where you don’t want water to settle, such as the wooden frames and the insulation. This warm and moist environment sets the perfect conditions for rot and mold to grow which could mean bigger problems for you and your roof.
Standards for Roof Ventilation
The gist of the International Residential and Building Code simply recommends a 1:150 ratio between roofing ventilation and the square-footage of your roof. This means you need at least 1 intake and exit vent for every 150 square-feet of your attic. These vents must be placed evenly throughout the gables and soffits to ensure equal distribution.
To learn more about roof ventilation and how it can help your home, give your trusted local roofers at John Peters Roofing a call at (317) 786-3315 today. You can also fill out our contact form for a free estimate. We serve Indianapolis and all nearby areas.