Vented roofs are the only way to holding the insulation R value in a cathedral roof, or on a SIP Roof. It also prolongs the life of roofing materials, sheathing, ice and water shield, roof underlayment, and asphalt shingles
Vented roofs are the only way to holding the insulation R value in a cathedral roof, or on a SIP Roof. It also prolongs the life of roofing materials, sheathing, ice and water shield, roof underlayment, and asphalt shingles