MATERIALS
Philadelphia Code Subcode P, § 1102
in effectSECTION 1102 MATERIALS
P-1102.2 Inside storm drainage conductors. Inside storm drainage conductors installed above ground shall conform to one all of the requirements and standards listed in Table Section 702 702.1.
P-1102.3 Underground building storm drain pipe. Underground building storm drain pipe shall conform to one all of the requirements and standards listed in Table Section 701 702.2.
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TABLE P-1102.4
BUILDING STORM SEWER PIPE
MATERIAL | STANDARD
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Cast-iron pipe | ASTM A74; ASTM A888; CISPI 301
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Ductile iron pipe class 56 | AWWA C151/A21.51; AWWA C115/A21.15
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TABLE P-1102.5
SUBSOIL DRAIN PIPE
MATERIAL | STANDARD
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Cast-iron pipe | ASTM A74; ASTM A888; CISPI 301
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P-1102.6 Roof drains. Roof drains shall conform to ASME 112.3.1 or ASME A112.6.4. Roof drain materials shall comply with Sections P-1102.2 and P-702.1. Roof drains, other than siphonic roof drains, shall be tested and rated in accordance with ASME ASME A112.6.4 or ASPE/IAPMO Z1034.
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Source: City of Philadelphia, The Philadelphia Code and Home Rule Charter (American Legal Publishing, codelibrary.amlegal.com)URL: https://codelibrary.amlegal.com/codes/philadelphia/latest/philadelphia_pa/0-0-0-312347Fetched: 10/27/2026