Ct Building Code Insulation Requirements 2025. The provisions of this chapter shall establish the minimum requirements for exterior walls; The requirements are directed toward the design of building envelopes with adequate thermal resistance and low air leakage, and toward the design and selection of.
This table is adapted from table r402.1.1 in the 2009 and 2012 international energy. This reduction of insulation from the requirements of section r402.1.3 shall be limited to 500 square feet (46 m 2) or 20 percent of the total insulated ceiling area