(R7.1) Put a Lid On It Part 1: Unvented Attics

Bringing attic and crawl spaces inside the thermal envelope is a great way to simultaneously improve energy efficiency and moisture management. One of the main ways unvented attics and crawl spaces reduce energy waste is by bringing ducts and air handlers inside (which is a requirement of NYStretch and the NYCECC). This can also be cost-effective for builders as they eliminate the require