Section 675 IAC 14-4.4-56 - Section R408.8; under-floor drainageAuthority: IC 22-13-2-2; IC 22-13-2-2.5; IC 22-13-2-13
Affected: IC 22-12; IC 22-13; IC 22-14; IC 22-15; IC 36-7
Sec. 56.
Add SECTION R408.8 to read as follows:
SECTION R408.8 UNDER-FLOOR DRAINAGE.
Under-floor spaces shall comply with Section R408.3, item 1, and shall be drained to a gravity discharge or sump pit, having a minimum size of 18 inches (457 mm) diameter by 24 inches (610 mm) deep, by one of the following methods:
1. The under-floor space shall be graded at a slope of not less than 1 inch (25 mm) for each 10 feet (3,048 mm) to a gravity discharge or a sump pit installed below the lowest point of the slope so that, in the event of excess water accumulation, a sump pump can be readily installed.2.The under-floor space shall be graded at a slope of not less than 1/2 inch (13 mm) for each 10 feet (3,048 mm) to a gravity discharge or a sump pit installed below the lowest point of the slope. Not less than 3 inches (76 mm) of granular material shall be placed between the ground surface and the vapor retarder so that, in the event of excess water accumulation, a sump pump can be readily installed.Fire Prevention and Building Safety Commission; 675 IAC 14-4.4-56; field 11/26/2019, 11:43 a.m.: 20191225-IR-675190330FRA