A well maintained roof is a source of pride for a household. It lives longer and gives no trouble to the members living within the building. A roof is also the structure within a building which is exposed to the maximum extent to natural elements like winds, snow, hail and sunlight. 

The most important aspect of a roof is its ventilation system. A proper ventilation system for a roof is often the single most important factor which governs its longevity. You can know more about roof ventilation via https://www.calidad.net.au/.

A roof having a good ventilation system, along with proper maintenance will live approximately 25% more than any other roof. A good roof ventilation system ensures that there is balance between the air coming in and the air going out. 

The cross ventilation of air around the roof keeps the roof temperature bearable and also keeps the material used in the construction of the roof from reaching very high temperatures.

Actually the ventilation system for all structures is based on the principle of a wind funnel. A proper roofing ventilation system will consist of an air intake hose and a corresponding exhaust hose to ensure there is proper ventilation of air within and under the roof.