Section BC 2506: Gypsum Board and Gypsum Panel Product Materials

2506.1 General.

Gypsum board, gypsum panel products and accessories shall be identified by the manufacturer's designation to indicate compliance with the appropriate standards referenced in this section and stored to protect such materials from the weather.

2506.2 Standards.

Gypsum board and gypsum panel products shall conform to the appropriate standards listed in Table 2506.2 and Chapter 35 and, where required for fire protection, shall conform to the provisions of Chapter 7.

Table 2506.2
Gypsum Board and Gypsum Panel Products Materials and Accessories

Material	Standard
Abuse resistant non-decorated interior gypsum panel products and fiber-reinforced cement panels	ASTM C 1629
Accessories for gypsum board	ASTM C 1047
Adhesives for fastening gypsum wallboard	ASTM C 557
Cold-formed steel studs and track, structural	AISI S200 and ASTM C 955, Section 8
Cold-formed steel studs and track, nonstructural	AISI S220 and ASTM C 645, Section 10
Elastomeric joint sealants	ASTM C 920
Fiber-reinforced gypsum panels	ASTM C 1278
Glass mat gypsum backing panel	ASTM C 1178
Glass mat gypsum panel 5	ASTM C 1658
Glass mat gypsum substrate	ASTM C 1177
Joint reinforcing tape and compound	ASTM C 474; C 475
Nails for gypsum boards	ASTM C 514, F 547, F 1667
Steel screws	ASTM C 954; C 1002
Standard specification for gypsum board	ASTM C 1396
Testing gypsum and gypsum products	ASTM C 22; C 472; C 473

 

2506.2.1 Other materials.

Metal suspension systems for acoustical and lay-in panel ceilings shall conform with Section 808.1.

2506.3 Mold resistance.

Gypsum board or cement board, used in an assembly for the following areas, shall have a mold resistance rating of 10 in accordance with ASTM D 3273:

   1.   Interior faces of exterior walls of basements, cellars, and other below grade rooms.

   2.   Walls and ceilings of spaces containing condensers, water tanks, water pumps, and pressure reduction valves.

   3.   Walls and ceilings of laundry rooms.

   4.   Portions of walls within 2 feet (610 mm) of kitchen sinks to a height of 4 feet (1219 mm) above the floor.

   5.   Portions of walls within 2 feet (610 mm) of kitchen stoves to a height of 4 feet (1219 mm) above the floor.

   6.   Walls of bathrooms that are not solely water closet compartments, other than walls specifically required to be cement board.

   7.   Walls and ceilings in service sink closets.

   8.   Portions of walls within 2 feet (610 mm) of mop sinks or service sinks to a height of 4 feet (1219 mm) above the floor.

Editor's note: For related unconsolidated provisions, see Appendix A at L.L. 2014/013.