A well maintained roof 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. This demands extra precautions and care for the roof. However, the roof also remains the most neglected part of any building, may it be a home or a utility building. The most important aspect of a roof is its ventilation system.