What is needed for Proper Ventilation of a Roof
It is extremely important to perform regular maintenance to your roof. Doing so will increase your roof’s lifespan and minimize the risk of damage as a result of bad weather. The roof is the part of a house that is exposed the most to the outside elements – from harsh winter conditions to extremely high temperatures.
You must take special care of your roof so that it can survive through all types of weather without suffering any damage. Unfortunately, most homeowners tend to neglect their roofs. A ventilation system for the roof is the most important factor in ensuring a long life for your roof. If you ensure a quality ventilation system and properly maintain your roof on a regular basis, your roof’s lifespan will be increased by about 25%.
What does a roofing ventilation system do? It creates cross-ventilation by making sure there is enough air coming in and going out. This results in a tolerable roof temperature, as well as protects the roof construction materials from getting too hot.
A good ventilation system for your roof will have an air intake hose along with an exhaust hose. This system works to provide adequate ventilation of air both within the roof and under it. The external air will cool the area around the roof while maintaining an internal temperature that will not get hotter than the outside air. The warm air rises in this system and then the colder external air sucks out the excess heat from under the sheeting as it leaves the exhaust hose.
The size, shape and materials used in building the roof in the first place will govern which ventilation system is right for you. A ventilation system uses vents and hoses in the roof to create a balance in the flow of air both under and over the roof. Approximately one square foot of venting per 250-300 cubic feet of air in the area just under the roof is needed to ensure that the air is balanced.
This also requires a certain number of vents in the roof, which can be static open units, turbine units, thermostatically operated units, or electronic units. The type of vent you use is dependent upon your roof size and how much money you have to spend.
You should have a roofing professional inspect your roof and recommend a ventilation system that would be best for you.
Roofing maintenance – Read our articles and tips on roof leaks and timber roof trusses.