Hot air creeps up and gets trapped in the attic space of any home, new or old. Some attic spaces are large enough to create rooms, while others are not more than a mere crawlspace. Either way, you will need to provide adequate ventilation of this space to increase the life of your roof.
How Airflow Makes a Difference
The solution to having a lot of hot, moist air trapped in the space right below the roof is to allow fresh, cooler air in. A steady flow of air through this space will make difference on heating and cooling bills. It will also create a drier, more comfortable atmosphere for the entire home.
Keep Your Roofing From Getting Overheated in the Summer
Heat in the attic can build and reach levels that are unbearable during hot summer months. This heat can damage the integrity of the roofing materials and lead to roof repairs that might not otherwise have to happen. It is not uncommon to see temperatures of 150-degrees Fahrenheit. The complete lack of air movement makes it tough to be in that space for any length of time. Adding ventilation is a necessity and most asphalt shingle manufacturers will void any warranty if the roof is not properly ventilated.
Reduce Wood Rot and Mold in the Winter
Heat also builds up in the winter by accumulating from warming the house. This heated air tends to be more moist than what gathers in the summer. It puts the entire integrity of your roofing support system in jeopardy of rot and mold infestation. You will take years off of the life of your roof without resolving the problem with good ventilation. Bringing fresh air in will not cool off the entire house. It will allow the structure to be heated more efficiently. It will also prevent the build-up of snow and ice that melts and re-freezes, causing ice dams.
How Big Should a Vent Be?
A general rule for adequate roof ventilation is to have 1-square foot of ventilation surface for every 300-square feet of attic space. As you can see, this is not a big requirement, but makes a huge difference in the life and performance of your roof. Experienced roofers can add ventilation in areas that will not disturb the siding or eavestrough.
Benefits of Adding Soffit Vents for Extra Airflow
Get even more airflow and avoid unneeded roof repair by placing discreet soffit vents. They blend in well and can be added to older homes, as well as newer. This is one of the passive ways to help your roof last for many years.
Contact expert roofing contractors and find out how affordable adding roof ventilation can be. You might be interested in learning more at the Cherry & Clark Roofing website.