(1) This Subsection applies to windows, doors and skylights, including their components, that separate,
(a) interior space from exterior space, or
(b) environmentally dissimilar interior spaces.
(2) For the purpose of this Subsection, the term “skylight” refers to unit skylights, roof windows and tubular daylighting devices.
(3) Where a wired glass assembly is installed in a required fire separation, it need not conform to the requirements of this Subsection.