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
NZA is 100% Carbon Neutral to the ISO 14060 Series Scope 1 and 2 Standards and Definitions of Carbon Neutrality.