Section 91 in The Punjab Capital (Development and Regulation) Building Rules, 1952
91. Sub-soil water drain.
- Wherever the dampness of the site renders such a precaution necessary the site of building shall be effectually drained by means of sub-soil drains.The sub soil drains shall be formed of earthernware field or other suitable pipes; and shall be properly laid to an adequate and suitable fall, and shall be laid in such a manner or in such positions as not to communicate with any sewer or with any drain constructed or adapted to be used for conveying sewage.[92. 'Roof and Site Drainage'. - The roof of the building (whether flat or sloping) shall be constructed so as to drain effectually to a suitable and sufficient gutters, shoots or troughs, which shall be provided for receiving and conveying all rain water that may fall on the roof. Such gutters, shoots or troughs shall be connected to a sufficient numbers of the suitable down pipes so as to carry away all such water without causing dampness in any part of the building or any adjacent building. Spout for discharge of rain water from roof may be used, provided the water from such spout falls within the applicant's property.A down pipe of a minimum area of 77.0 sq. cms. shall be provided for every 46.5 sq. mts. of the flat roof area (slope of roof being upto 1.80) or for every 9 sq. mts. of sloping roof area (slope of roof exceeding 1.80). The run off from the roof, paved area shall be drained into storm water sewer. Over- flow, if any, from the site shall be carried to a storm water sewer.] [Substituted by Chandigarh Administration Gazzette dated 22.1.1993.]
