DCI Products Inc., Clifton Heights, Pa., offers SmartVent, an off-ridge ventilation product designed to offer mainly intake ventilation when used at the soffit area. SmartVent will equalize the intake required for proper ridge vent exhaust. Sold in rolls or easy-to-use 36-inch shingle length, the product ventilates areas such as the soffit, hip, shed, valley, cathedral ceilings and other off-ridge areas. As a hip vent, SmartVent provides the proper amount of intake and exhaust ventilation for hip roofs.