Because of our current litigious environment, many roofing
professionals are careful to follow building code requirements
exactly lest they face legal challenges. However, there may be
instances when strictly adhering to the prescriptive code without
engineering analysis and evaluation does more harm than good.
Roofing professionals who look to IBC 2006 for ventilation
requirements for low-slope roof assemblies will find Chapter 15,
Roof Assemblies and Rooftop Structures, Section 1503 Weather
Protection, 1503.5 Roof Ventilation, which reads: "1503.5 Roof
ventilation. Intake and exhaust vents shall be provided in
accordance with Section 1203.2 and the manufacturer's...
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