Exam (elaborations)
Roofing Practice Exam #1 100% correct answers 2023
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Roofing Practice Exam #1 100% correct answers 2023According 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 extend...
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