Louisiana Administrative Code
Title 51 - PUBLIC HEALTH-SANITARY CODE
Part XIV - Plumbing
Chapter 3 - General Regulations
Section XIV-305 - Protection of Pipes

Universal Citation: LA Admin Code XIV-305

Current through Register Vol. 50, No. 3, March 20, 2024

A. Breakage and Corrosion. Pipes passing under or through walls shall be protected from breakage. Pipes passing through concrete or cinder walls and floors or other corrosive material shall be protected against external corrosion by a protective sheathing or wrapping or other means that will withstand any reaction from lime and acid of concrete, cinder or other corrosive material. Sheathing or wrapping shall allow for expansion and contraction of piping to prevent any rubbing action. Minimum wall thickness of material is to be 0.025 inch (0.635 mm).

B. Sleeves. The following applies to sleeves.

1. Annular spaces between sleeves and pipes shall be filled or tightly caulked as approved by the plumbing official.

2. Annular spaces between sleeves and pipes in fire rated assemblies shall be filled or tightly caulked in accordance with the applicable codes adopted under the authority of Act 12 of the 2005 First Extraordinary Session.

C. Pipes through Footings or Foundation Walls. A soil pipe, waste pipe, or building drain that passes under a footing or through a foundation wall shall be provided with a relieving arch, or a pipe sleeve of Schedule 40 pipe shall be built into the masonry wall. Such sleeve shall be two pipe sizes greater than the pipe passing through or as may be approved in writing by the plumbing official.

D. Minimum Depth of Water Piping Outside of Building. Water piping outside the building line shall be installed not less than 12 inches (305 mm) deep.

E. Trench Location. T renching installed parallel to footings shall not extend below the 45° (0.785 rad) bearing plane of the footing or wall unless approved by the plumbing official.

F. Waterproofing of Openings. Joints at the roof, around vent pipes, shall be made watertight by the use of lead, copper, galvanized steel, aluminum, plastic or other approved flashings or flashing material. Exterior wall openings shall be made watertight.

G. Pipes in Wood Construction. Where cutting, notching, or boring occurs within 1 1/2 inches (38 mm) of the face of wooden joists, rafters, or studs, a protective steel plate 1/16-inch (1.59 mm) thick shall be used to protect the piping. The steel plate shall be the full width of the member and shall extend at least 2 inches (51 mm) on each side of the cut, bore, or notch.

1. Exception. A protective plate is not required for cast iron, galvanized or black steel, and Grade(Q) H stainless steel pipe.

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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