Kalamazoo Roofing: Article About The Importance Of Roof Ventilation
Proper roof ventilation is a crucial component to a healthy and effective roofing system, but many homeowners may not understand why. A poorly ventilated roof can cause a wide range of issues that may eventually lead to costly, extensive repairs if left uncorrected. Fortunately, a Kalamazoo roofing professional can help homeowners determine whether their roof is adequately ventilated and correct any problems that may exist.
Improper roof ventilation may cause issues in both summer and winter. When summer temperatures soar and the sun imparts a tremendous amount of solar energy, a poorly ventilated attic can rapidly become extremely hot. On a 90-degree day, an unventilated attic may reach temperatures of up to 140 degrees. This can cause tremendous stress on the roof decking and shingles, which is why many manufacturers require certain ventilation standards to meet their product warranties. This heat can also be transferred to the living space below, raising temperatures and increasing cooling costs.
In the winter, a well-ventilated roof prevents the buildup of excess heat and moisture in the attic space below. If heat is allowed to build up, it eventually leads to melting snow on the roof's surface above. This melted snow can then refreeze at the edges of the roof or in the gutters where there is significantly less heat. This may cause ice dams to form, which can lead to water infiltration, shingle and gutter damage, and other potential issues.
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Additionally, warm and moist air trapped in the attic space may condense on colder surfaces of the rafters and roof deck, leading to moisture-related issues such as water damage as well as mold and mildew growth.
When it comes to correcting inadequate roof ventilation, two factors to consider are air intake and air exhaust. Proper ventilation requires the ability to intake fresh outside air from a lower portion of the roof and exhaust air, which comes from inside near the roof's peak, creating a smooth and uninterrupted circulation. Homeowners can choose from a whole host of options in order to accomplish this goal. For air intake, the most common option is continuous or individual soffit vents or eave vents. For exhausting air, choices include ridge, gable, static and turbine vents.
Installing proper roof ventilation is an important step in ensuring that a roof functions correctly and lasts for as long as possible. While it may seem like a small detail, these vents can help to prevent major issues from occurring over time. For homeowners who suspect their roof and attic space may not be adequately ventilated, a qualified roofing professional can assist in inspecting the roof, determining which ventilation options are most appropriate and installing them properly.