Soffit

Soffit is defined as the finished underside of the roof overhang, spanning from the exterior wall to the fascia board at the eave. Soffits are typically constructed from vinyl, aluminum, fiber cement, or plywood and serve the critical function of housing intake ventilation ports that draw fresh air into the attic. Vented soffits are essential for balanced attic ventilation and must remain unobstructed by insulation. Standard soffit panels are 12 inches wide with approximately 9 square inches of net free area per linear foot in the perforated sections.