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Chapter 13 Sprayed Fire Resistant Materials

CHAPTER 13 SPRAYED FIRE-RESISTANT MATERIALS

SICC-1301 GENERAL

SICC-1301.1 Scope. The requirements of this chapter and NCSBC-1704.11 shall apply for all sprayed fire- resistant materials used to provide required fire resistance ratings for structural elements and decks. Sprayed fire-resistant materials shall not be applied to building elements until required inspections of the building elements and connections have been conducted and approved. Sprayed fire-resistant materials shall be applied, inspected and approved before attachment of or concealment by, other elements of the building.

The SIER shall inspect and test sprayed fire-resistant materials, including preparation of structural member surfaces, verification of substrate ambient temperatures and ventilation requirements, and testing samples for thickness, density and adhesion.

SICC-1302 DESIGN DOCUMENTS

SICC-1302.1 Construction documents. Designs for sprayed fire-resistant materials shall be listed by UL or other nationally recognized third party testing agencies to provide the required fire-resistance rating for structural elements and decks. The fire-resistance designs shall be designated on the County approved construction documents. The GC shall provide copies of the UL listings in the field for use by the SIER.

SICC-1303 INSPECTION AND TESTING

SICC-1303.1 Inspections and tests. The SIER shall inspect and test sprayed fire-resistant materials to verify compliance with NCSBC-1704.11 and the following:

SICC-1303.1.1 Building elements and connections. In addition to other required inspections of the building elements and connections, inspections shall include any non-standard design features or devices as shown on the County approved fabrication and erection documents for sprayed fire-resistant materials (see SICC-1402.2). Other building elements such as pre-cast concrete spandrel panels, electrical conduits, mechanical ductwork or metal studs shall not be installed that interfere with the application of sprayed fire-resistant materials.

SICC-1303.1.2 Application. Sprayed fire-resistant materials shall not be applied to building elements until the SIER required inspections of the building elements and connections have been conducted and approved. The sprayed fire-resistant materials shall be applied to all surfaces and lengths of members such that the continuity of fire-resistance required by the County approved fire-resistive designs is obtained.

SICC-1303.1.3 Sampling and testing.

SICC-1303.1.3.1 Thickness and density. Sampling and testing shall be in accordance with NCSBC- 1704.11.3 and NCSBC-1704.11.4 and ASTM E 605, at least once for each 1,000 square feet (93 m2) of sprayed area for floors, roofs and walls and 25 per cent of the structural members on each floor.

SICC-1303.1.3.2 Adhesion. Sampling and testing shall be in accordance with NCSBC-1704.11.5 and ASTM E 736, at least once for each 10,000 square feet (929 m2) of sprayed area for floors, roofs and walls and one of each type of structural member per 10,000 square feet (929 m2) on each floor.

SICC-1303.1.4 Attachment of other elements. Sprayed fire-resistant materials shall be inspected and Page 51

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