FIREPROOFING DEPTH GAUGE FULL

Thicker applications are generally required in unrestrained conditions.Ī restrained structure is one that can resist substantial thermal expansion under the full range of temperatures expected in a fire. Selection of the appropriate SFRM assembly often requires an understanding about whether your structure is considered restrained or not. However, all of IBC Section 704 covers the Fire-Resistance Rating of Structural Members, which can be provided by spray applied fireproofing.

FIREPROOFING DEPTH GAUGE CODE

The International Building Code 2018 discusses SFRM in Section 704.13. The characteristics of SFRM are determined according to ASTM E736, Standard Test Method for Cohesion/Adhesion of Sprayed Fire-resistive Materials Applied to Structural Members and ASTM E605, Standard Test Methods for Thickness and Density of Sprayed Fire-Resistive Material Applied to Structural Members, among other codes. The fire resistance of structures to which SFRM are applied are measured and defined by fire endurance tests such as ASTM E119, Standard Test Methods for Fire Tests of Building Construction and Materials. Modern formulas are asbestos-free and don't contain free crystalline silica. Proper lung and eye protection is required during mixing and application. The fireproofing is generally delivered as a dry powder in bag, which is then mixed with water in the field. Chemical hardeners are sometimes used to either speed up hardening or to make the final fireproofing harder than normal.Īpplied fireproofing is available as a wet or dry spray formula and can also be troweled on. The other materials are used to help lighten the solution or to add air as in insulator. The gypsum or cement makes up the majority of the solution and is selected because it hardens as it dries.

SFRM is composed of cement or gypsum and often contains other materials like mineral wool, quartz, perlite, or vermiculite. Application of Spray Applied FireproofingĬomposition of Spray Applied Fireproofing.Composition of Spray Applied Fireproofing.

Fireproofing depth gauge