Ventilation is crucial to the performance of a roof system. Ventilation eliminates heat, moisture, ice dams, and prevents mold. Proper ventilation will maximize the efficiency of your home and reduce heating and cooling costs. All major shingle manufacturers recommend adequate attic ventilation. The preferred method of ventilation is a combination of intake and exhaust achieved through the use of soffit and ridge vents. (Please visit our webpage on ventilation for further explanation.)