Exam (elaborations)
Roofing Practice Exam #1 Rated A 2023
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According to the architectural sheet metal manual, what is the minimum thickness of a 4" x 6" plain rectangular copper downspout? - 16 Oz When using step or channel flashing where a tile roof area intersects a side wall, NRCA recommends extending the flashing a minimum of ______ up the wall. - 4...
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