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BICSIfirestop
Chapter 7
Question | Answer |
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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 |