Roof ventilation may not sound as exciting as the roofing material or the architectural style. Nevertheless, it is an important factor when designing a new roofing system, especially if you’re a homeowner in Florida. Here’s why.
What Does Attic Ventilation Do?
Heat and moisture from interior spaces tend to rise and collect in the attic. Without proper ventilation, the hot and moist air would get trapped in the attic, which can result in damage to parts of the roofing structure that are vulnerable to heat and moisture damage. Wood components may warp or rot, metal components may corrode, and insulation may form clumps that could reduce its efficiency. Keeping the attic cool and dry through attic can help prevent such problems.
Parts of an Attic Ventilation System
Attic ventilation has two key components: exhaust and intake vents. On sloped roofs, the exhaust vents are located at the ridges. As the highest point in the roof, the exhaust vents utilize the natural movement of hot and humid air to release it to the outdoors. This creates negative pressure that pulls cool and fresh air through the intake vents located at the roof soffits.
A properly designed attic ventilation system should have proportionally-built ridge and soffit vents. Narrow ridge vents won’t be as efficient while making them too wide can give insects and small animals access to your attic. Making the soffit vents too narrow can likewise reduce ventilation efficiency while making them too wide can make the roof vulnerable to damage caused by wind uplift. Roof repair and installation contractors like us recommend adding exhaust fans if you have an oversized roof.
Conditions in Florida
It goes without saying that all sloped roofs, regardless of location, need attic ventilation. The climate in Florida makes it essential to have a properly built attic ventilation system, thanks to the warmer climate and high humidity levels. If you happen to live close to coastal areas, sea air can increase the risk of corrosion. Improperly designed attic ventilation systems can be corrected by a capable roofing contractor.