Chapter 5 Flashcards
Movement of the flame away from the ignition source
Flame spread
Speed at which flame will spread over the surface of a material
Surface burning characteristic
Any enclosed space without internal fire barriers
Compartment
The most significant factor that determines a fuel’s burn rate is the?
Combination of the fuel and the available oxygen
Types of fire retardant coatings available include:
Intumescent coatings. Mastics. Gas forming paints. Cementitious and mineral fiber coatings
Series of barriers designed to keep flames, smoke, and heat from spreading between spaces
Compartmentation
The parapet height above a combustible roof is determined by the building code and varies from?
18 to 36”
Freestanding walls must be designed to resist a lateral load?
At least 5 pounds per square foot
The international code Council allows firewalls with fire resistive ratings up two, three, or four hours, depending on?
The occupancy
Standard test used to measure the surface burning characteristics of various materials. Also known as Steiner tunnel test or tunnel test
ASTM E – 84
Also called UL723
Heat resistant construction adhesive that bonds with most materials. Can be used as a fire retardant coating
Mastics
Asbestos cement board is assigned a flame spread rating of?
Zero
Red oak flooring is assigned a flame spread rating of?
100
Flame spread ratings over___are not permitted in occupancy’s, per code
Over 200
Red oak is assigned a smoke developed rating of?
100
Codes do not allow a combination of materials that EXCEED the maximum smoke developed rating of?
450
Large scale test used to evaluate the performance of textile wall coverings under fire conditions
NFPA 286
Similar to Astme84
An older large scale test was developed for evaluating the fire performance of wall textile coverings. The test was originally developed when carpet like textiles began to be used as wall coverings
NFPA 265
Fire walls:
Erected at a column line. The structural framework must have sufficient strength to resist the lateral pool of the collapse of framework on either side
Tied wall
Four hour rated firewalls must be constructed of?
Masonry or concrete
Combustible structural members are allowed to be framed into a masonry or concrete firewall from opposite sides provided there is a?
4 inch separation between the ends of the structural members
Stairwells and buildings four stories or lower are required to have a___hour rated enclosure
1 hr
In buildings taller than four stories, stairwells are required to have___rated enclosures
2 hrs
Fire door class:
Openings in firewalls
Class A
Fire door classes:
Openings between rooms and Corredor’s having a fire resistance of one hour or less
Class C
Fire door classes:
Openings and exterior walls subject to moderate or light exposure from the outside
Class E
Fire door classes:
Openings and exterior walls subject to severe fire exposure from the outside of the building
Class D
Fire door classes:
Openings in vertical shafts and openings in two hour rated partitions
Class B
Would swinging fire doors include hardware that can also be referred to as?
Builders hardware or fire door hardware
Fire doors with ratings up to__hours can be equipped with glazing
3 hrs
Fire doors with the ratings of 1 to 3 hours can have a glass panels up to___in area per door
100 sq inches
The primary criterion for acceptability is that the fire door must ________ during the flame test.
Remain securely in its frame
The second criterion for acceptabilityability is that the fire door assembly must remain in place when subjected to?
A hose stream immediately following the fire test
Fire doors are tested in accordance with the procedure is contained in?
NFPA 252, standard methods of fire test of door assemblies. Also designated ASTME152
Fire doors that pass a testing process are marked with a?
Label or plate on the top or on the hinge side of the door
These types of fire doors are often found an older industrial buildings
Horizontal sliding fire doors
These fire doors commonly protect stairwell enclosures and Corredor‘s. They are available with ratings from 20 mins to 3 hrs
Swinging fire doors
Door closers can be used with what type of doors
Sliding or swinging fire doors
Swinging fire doors with ratings up to__hours can be equipped with louvers
1.5 hrs
