Louisiana Administrative Code
Title 51 - PUBLIC HEALTH-SANITARY CODE
Part XIV - Plumbing
Chapter 11 - Storm Drainage
Section XIV-1113 - Secondary (Emergency) Roof Drains

Universal Citation: LA Admin Code XIV-1113

Current through Register Vol. 50, No. 9, September 20, 2024

A. Secondary Drainage Required. Secondary (emergency) roof drains or scuppers shall be provided where the roof perimeter construction extends above the roof in such a manner that water would be entrapped should the primary drains allow buildup for any reason.

B. Separate Systems Required. Secondary roof drain systems shall have piping and point of discharge separate from the primary system. Discharge shall be above grade(G) in a location which would normally be observed by the building occupants or maintenance personnel.

C. Maximum Rainfall Rate for Secondary Drains. Secondary (emergency) roof drain systems or scuppers shall be sized based on the flow rate caused by the 100-year 15 minute precipitation as indicated in Figure 1113.C of this Part. The flow through the primary system shall not be considered when sizing the secondary roof drain system.

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Figure 1113.C - Rainfall Rate for Primary Roof Drains (in./hr.)

AUTHORITY NOTE: Promulgated in accordance with R.S. 40:4(A)(7) and R.S. 40:5(2)(3)(7)(9)(16)(17)(20).

Disclaimer: These regulations may not be the most recent version. Louisiana may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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