Ventilation is a very important part to keep a house healthy and allowing the home to be energy efficient. The primary reason for proper ventilation is to remove moisture build up. Typically that moisture build up is in attic, or under crawl spaces. When removing moisture, the added by product is better performing insulation. Moisture laden insulation material values can be decreased by 50% or more. Keeping that insulation dry is critical. We are ventilation experts. Ventilation is generally done by a formula, based on the size and shape of the structure. Until the regular use of cathedral ceilings in homes, gable vents were the most common method. Cathedral ceilings require ridge vents. Never, should a house mix gable vents with ridge vents in the same space, it can actually make the ventilation worse.
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