Attic-ventilation strategies

摘要

Except in some specific cases, building codes and shingle warranties require new roofs to be vented. If you're building a house with an unconditioned vented attic, the necessary attic-ventilation details are fairly straightforward, especially if the house has a gable roof. They include soffit vents (and usually a ridge vent) along with ventilation baffles that provide open pathways for air to travel from the soffit vents along the underside of the roof sheathing to the ridge.