Fire Resistance

Question: 

Are there any published studies or guidelines on the fire rating of floor trusses built with 2x3 lumber?

Firefighters in Wilmington, Delaware have honored two comrades who were killed in the line of duty Saturday when the first floor collapsed into the basement.

Many factors go into classifying buildings. Each type will have different allowable height, allowable number of stories and allowable area limitations based on the classification. This educational program will focus on Type III-A building construction using fire retardant treated wood (FRTW).

This presentation provides information on the use of gypsum wallboard in single membrane floor protection.

Many factors go into classifying buildings. Each type will have different allowable height, allowable number of stories and allowable area limitations based on the classification. This report will focus on Type III-A building construction using fire retardant treated wood (FRTW).

This presentation provides information and analysis of fire retardant-treated wood and metal plate connected wood truss designs.

Depending on the type of fire-retardant treatment (FRT) used, materials may require a change in design values and reduction in connector capacity. This report intends on providing a clear perspective of interiror FRT wood used in Truss designs.

Fire endurance ratings may be mandated by code for many assemblies in both floor and roof framing systems. This Research Report discusses methodologies to calculate 2-hour fire endurances of a given assembly.

The goal of this Research Report is to assist in designing safe buildings economically, especially when sprinkler systems are required or desired in the design.

A fire endurance rating may be mandated by code for many of the applications where trusses could be used in floor/ceiling, roof/ceiling or in attic separation applications. This Research Report discusses 5 different methods for determining fire resistance.