Ventilation is the process of ensuring a continuous supply of air through the attic space. “Proper ventilation” consists of 50% intake under the eaves and 50% exhaust near or at the roof peak (at least 3 feet higher than the intake system).
Heat in unventilated attics may cause temperatures to exceed 150 degrees causing damage to shingles, roof sheathing and possibly radiation to the living area. Moisture is the #1 enemy, causing rot, mildew, mold, point blisters and rendering insulation ineffective.
Proper ventilation reduces energy bills, winter ice build up and eliminates mold/mildew which can lead to major health problems. By ventilating, you are extending the like of other building components, shingles, insulation, etc.
A ridge vent (as show in the figure above) is a type of vent installed at the peak of a sloped roof that allows warm, humid air to escape a building’s attic. Ridge vents increase ventilation and help to prevent a dangerous build up of moisture.
Now is the time to have your ventilation checked for damage or decay. Contact us today for a free estimate.