Designing steep-slope roof assemblies for new buildings or
additions encompassing Type I or Type II construction and certain
occupancy groups can present problems with no apparent solutions.
Building code requirements often present obstacles that are
difficult to overcome. The following is an example of such a
challenge and is based on an actual situation encountered by
NRCA's Technical
Services Section through its technical assistance program.
An existing building complex serves as the campus of a small
Midwestern liberal arts college established more than a century
ago. The buildings are masonry constructions and vary in height
from three to five stories. The dormitories are four- and
five-story buildings with steep-slope roof assemblies, which
consist of steel structural members, wood board decks and slate
roof coverings. The institution wants to build additional dormitory
space and match the existing historical design elements.
However, matching the existing roof system using recommended
industry best practices and complying with current
building...
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