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BICSIfirestop

Chapter 7

QuestionAnswer
WARNING, THE FIRESTOP SYSTEMS AND SITUATIONAL EXAMPLES IN THESE CARDS ARE ONLY EXAMPLES AND YOU SHOULD CONSULT THE MANUFACTURERS GUIDE FOR PROPER USE OF THEIR PRODUCT WARNING, THE FIRESTOP SYSTEMS AND SITUATIONAL EXAMPLES IN THESE CARDS ARE ONLY EXAMPLES AND YOU SHOULD CONSULT THE MANUFACTURERS GUIDE FOR PROPER USE OF THEIR PRODUCT
Which of the following NRTL has the greatest number of tested firestopping systems? A. Underwriters Laboratories Inc. UL B. Factory Mutual Systems FM C. Southwest Research Inc. SWRi A. UL
Besides F, T, and L name 3 things tested that firestop maybe required to protect against? Flooding; Explosions; EMI/EMP
Will adding more of a particular product add to that products firestop rating? No
Who may be held responsible for improper firestopping? The ITS installer
An F rating of 2 hours means what? The product will with stand direct flame for 2 hours.
An T rating of 2 hours means what? The product will with stand a temperature rise for 2 hours.
Will a T rated product also protect against direct flame? Yes
Which rating is better when lower numbers are involved? L Air Leakage
What are the two types of firestop systems? Mechanical and Non-Mechanical
What does Intumescent material do? Expands
What are two general categories of Non-Mechanical firestop materials? Intumescent and Passive
What does endothermic material do? Absorbs heat
Where are Intumescent Pads used for? Fills the knockout holes of outlet boxes and prevents smoke and fire from entering the wall cavity.
What type of passive firestop material allows for ease of reentry, remain soft till exposed to heat, and comes in bars? Putty
What may be required to help pillow firestop pass a hose stream test? Wire restraints
Plastic piping may burn away during a fire and leave a significant void, what type of firestop system should be used? Collar with putty. The collar is designed to force the putty inwards and crush the pipe sealing the void.
Foam type systems expand during installation and the are also intumescent. Are they reenterable? Yes
How do know what type of firestop system to use? You must understand the construction issues and follow the manufactures guide. In all cases the AHJ must approve.
You are using a firestop system that calls for the use of mineral wool, if you run out of wool can you use insulation foam instead? No, never substitute materials. This will be a violation of the manufactures guide and as the installer you will be held responsible for an improper install.
All firestop products must be tested by a NRTL. What is a NRTL? National Recognized Testing Laboratory
What might be a good firestop system for a cable tray? Intumescent Pillows with wire restraints.
What might be a good firestop system for a 4" conduit entering a TR? Putty, remains plyable and can be reentered.
What type of material becomes hard and chars? Ablative
What type of material is used in the fire retardant paint of a back board? Endothermic
Created by: smorita
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