(1)
Windows, doors and skylights shall meet the heat transfer performance requirements stated in Section 5.3. (See Note A-5.3.1.2.))
(2)
Except as provided in Sentence (3), all metal-framed glazed assemblies separating interior conditioned space from interior unconditioned space or exterior space shall incorporate a thermal break to minimize condensation.
(3)
Metal-framed glazed assemblies need not comply with Sentence (2) where these assemblies are
(a)
storm windows or doors, or
(b)
windows or doors that are required to have a fire-protection rating. (See Note A-5.9.2.4.(3))