CC-1000_2018

Soil Gas Control Systems ANSI/AARST CC-1000 2018 in New Construction of Buildings 18 Manual required in Section 12.2 shall include written justification for locating the point of exhaust below the roof and, unless installing the ASD fan(s) during construction, detailed design for co mplying with Section 8.9 Provision for ASD fan(s) using design features that comply with ANSI/AARST RMS-LB or RMS-MF. 9.7 Separation from openings and people 9.7.1 Separation from openings in structures The point of exhaust shall be located either: a) not less than 4 feet (120 cm) above operable openings in structures; or b) not less than 10 feet (3 m) horizontally to the side of operable openings in structures and compliant with Section 9.3 Directional spread. 9.7.2 Separation from people In relationship to exterior flooring surfaces such as decking, patios, sidewalks and exterior corridors where individuals congregate or traverse: a) the point of exhaust shall be not less than 10 feet (3 m) above or not less than 10 feet (3 m) horizontally to the side of exterior flooring surfaces; and b) the point of exhaust shall be compliant with Section 9.3 Directional spread for an elevation of not less than 10 feet (3 m) above exterior flooring surfaces. Figure 9.7 Grey areas cannot contain building materials, openings in structures and the breathing space where people congregate or traverse. 9.7.3 Equipment Wells The point of exhaust in relationship to equipment well airspaces that are enclosed by more than two walls shall comply with Section 9.3 Directional spread to include the breathing space where individuals conduct maintenance. 9.8 Protection from debris 9.8.1 Mesh Wire mesh or equivalent rodent/insect screen (mesh not smaller than 1/2 inch [13 mm]) shall be provided at the point of exhaust to prevent debris or small animals from entering exhaust piping. 9.8.2 Obstructions to exhaust flow Obstructions in the path of exhaust, to include rain caps, shall not be permitted unless conditions of pervasive torrential rain or pervasive blockage from falling debris can be documented as known to exist. 9.9 Increased distances for large capacity systems Based on exhaust pipe size, distances shall be increased to comply with Table 9.9. 9.10 Inspect the soil gas exhaust vent pipe prior to completion of indoor finishings Prior to completion of indoor finishings, an inspection shall be conducted to verify compliance for soil gas exhaust vent piping in accordance with Sections 8 through 9 . The inspection shall include items listed in Exhibit A-3 and be retained in records in accordance wit h Section 12 . Notice: This provision is strongly recommended but not mandatory unless specifically referenced in contract or local ordinance. See Annex A-1 . Table 9.9 Distances shall be increased as follows when design capacity for exhaust pipe size in accordance with Section 4.3 exceeds 4-inch (100-mm) ID pipe. Pipe ID 3” - 4” Pipe (7-10 cm) Distance Away Distance Away Height Above or Distance To Side As per Section 9.3 Directional spread 10 ft (3 m) As per Section 9.4 Straight-line trajectory 20 ft (6 m) As per Section 9.5 Grade Section 9.7.1 Operable openings Section 9.7.2 People For Larger Pipe Increase to Increase to Increase by 6” (15 cm) 12 ft (3.6 m) 25 ft (7.6 m) 2 ft (1.8 m) 8” (20 cm) 18 ft (5.5 m) 30 ft (9 m) 4 ft (2.4 m) 10” (25 cm) 20 ft (6 m) 40 ft (12 m) 6 ft (1.8 m) For pipe larger than 10” (25 cm) Shall meet or exceed ASHRAE 62.1 2016, Appendix B Separation of Exhaust Outlets and Outdoor Air Intakes Straight-line