Perforated Horizontal Pipe

Perforated Horizontal Pipe in Methane Mitigation

Perforated Horizontal Pipe: As per the Los Angeles Department of Building and Safety (LADBS) Methane Code, Ordinance Number 175790, a perforated horizontal pipe is a PVC or ABS pipe that contains a series of small holes or narrow openings placed equidistantly along the length of the pipe, and is installed horizontally beneath the foundation of a building and impervious membrane of a mitigation system. The perforated horizontal pipe ventilates accumulations of methane soil gas and reduces formation pressure. And in cases where a waterproofing and dewatering system is necessary, a perforated horizontal pipe may also apply to drain groundwater.

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