A well-ventilated and insulated attic keeps an attic cool in the cooler months, which prevents ice dams. The insulation will also keep moisture coming into the attic from the house interior.
During the warmer months, ventilation helps to reduce the temperature of the roof deck which prolongs shingle life - especially for asphalt roofs. Also, ventilation can prevent hot air and moisture from building up in the attic (unless in an extremely humid climate) and the insulation prevents heat transfer into the house. #attic #atticventilation #ventilation #icedams #preventicedams #prolongrooflife #energyefficiency #dryattic #insulation #insulatedattic