2603.4.1.1 Masonry or concrete construction.
BC § 2603.4.1.1
A thermal barrier is not required for foam plastic insulation installed in a masonry or concrete wall, floor or roof system where the foam plastic insulation is covered on each face by not less than 1 inch (25 mm) thickness of masonry or concrete. Editor's note: For related unconsolidated provisions, see Appendix A at L.L. 2014/051.













