Attic venting is another very inexpensive way to reduce energy costs, prolong roof life, and make the living space more comfortable. Non-professionals can often overlook adequate ventilation in the attic area. Many homeowners cover the attic vents in the winter to conserve heat and forget to remove the covering in the summer, which reduces roof life and cause massive damage to the sheathing and insulation. Attic venting can be passive such as soffit and gable vents, or it can be power assisted such as an attic roof fan. Power venting of the attic is the best way to quickly remove moisture and heat build up, but it must be checked carefully that it has adequate passive vents to allow air to pass through rather than draw from the living space. The inspector will carefully note the type of ventilation and make recommendations on whether or not improvements or alterations are required.