What are the differences between a vented and sealed attic?
A traditional, vented attic was designed to allow condensation to escape by allowing moisture to escape through gable vents by airflow. A sealed attic is an attic system that eliminates the need for gable vents by insulating the underside of a roof deck with air-impermeable insulation that doesn’t allow for condensation to develop. A properly sealed attic can be your best defense against high-energy bills, and it may be your only defense against the stack effect, and an HVAC system that can’t keep your house cool in the summer.
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