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31 Cards in this Set
- Front
- Back
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Foam Plastics Insulation
- is the most efficient insulating material known and demand has increased over the years |
Highly insulating walls ceilings roofs and buildings have become more appropriate in the cheese achieving energy efficiency |
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List the hazards/disadvantages of foam plastics |
– They all burn -easily damaged by heat -give toxic fumes - give offthick black greasy smoke (ammonia and hydrogen cyanide-carbon dioxide) -produce large amounts of heat (twice the amount) |
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List the advantages of foam plastics insullation |
- excellent insulators
- lightweight and easy to work with
- in expensive to manufacture and purchased |
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List two (2) Types of Foam Plastics and explain each. |
(1) Polyurethane - is rigid "Boardstock" -primary use is insulation - large blocks or sheets Or -can be flexible -used for upholstery (Sofas/pillows /chairs)
(2) Polystyrene-(styrofoam) -comes in rigid form only (Drinking cups/packing material) -Burns fast and produces the black smoke -can burn with the intensity of a flammable liquid
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What protection is there for foam plastics? |
Thermal barriers |
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Describe thermal barriers |
- they are required for safety prior purposes provides property protection
- -prevent he transmission |
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Describe thermal barriers |
- they are required for safety prior purposes provides property protection
- -prevent heat transmission |
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Give examples of acceptable thermal barriers?
GPMS |
1: gypsum board 2: plaster and metal lath 3: Masonary Materials(brick or concrete block) 4: spray on and glassfiber insulation |
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True or false:
self extinguishing foam plastics
-There are no such thing
-Terminology shouldn't be used |
Back (Definition) A |
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True or false:
Is there self extinguishing foam plastics?
-There are no such thing
-Terminology shouldn't be used |
Back (Definition) A |
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with respect to interior finished what are the three characteristics of surface burning characteristics and what is the importance of each one |
1. Flame spread 2. Fuel contributed 3. Smoke produced
1. Flame spread rating of 25 min or less is considered non combustible which is required for elevators, exit stairways,exits lobbies ect. |
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With respect to roof's list the classes and two type of roof coverings: |
Class a Class b Class c
Types:
Prepared Built up |
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Describe the classes of roofs: |
Class A:
-are effective against severe fire exposures
- high degree of fire protection
- do not slip from position
- not easily flammable -possessed no flying brand hazard
Class B
- are effective against moderate fire exposures
- give moderate fire protection
- do not slip for position - possessed no flying brand hazard
Class C - are effective against light fire exposure -slight degree of fire protection
-do not slip from protection
- possessed no flying Brand hazard
- any require repairs to maintain fire retardant properties |
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Front (Term) Describe the two types of roof coverings: |
Back (Definition) 1. Prepared roof covering
- example asphalt roof shingles - has fire retardant shingles and she coverings -must be sloped to provide sufficient drainage
- brick, concrete, tile and slate are also a prepared roof covering
2. Built up roof covering - tar and gravel roof
- consists of several layers of roof felt's and insulating panels bonded together by hot or cold cements and topped with roofing gravel
- Glassfiber steel aluminum and tile are also considered built up |
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Define fire retardant |
-has a lesser degree protection of fire resistant
- used in reference to chemical coatings and treatments to reduce combustibility of building materials |
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What is cellulosic materials |
-hey are used in large quantities and products construction products furnishings and decorations
- -he used and homeschools factories offices and shops
- can increase fire protection |
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Explain the purpose of fire devisions and separations? |
-they reduce losses -they stop the passage of fire to other areas |
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Fire walls have specific design features what are they? |
- a fire wall should have a 3 hr fire resistant rating
- they have minimum openings , as this reduces the reliability of a fire wall |
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Front (Term) What is a Parapet (end wall)? Explain |
Back (Definition) - Is a low protective wall along the edge of a roof, bridge, or building.
- it extends through and above the roof
-must be 1 meter/3feet above the roof
- to prevent the spread of fire over the top of the wall to the other side |
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Name two methods of minimizing the chances of fire passing around the end of a firewall? |
- extend the fire wall 1 to 2 meters beyond the wall of a building (parapet)
- provide a tee section at the end of the wall |
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Name two methods of minimizing the chances of fire passing around the end of a firewall? |
- extend the fire wall 1 to 2 meters beyond the wall of a building (parapet)
- provide a tee section at the end of the wall |
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Considering stability, firewalls fall into two categories name them? |
- Tied Walls
- freestanding walls |
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Name two methods of minimizing the chances of fire passing around the end of a firewall? |
- extend the fire wall 1 to 2 meters beyond the wall of a building (parapet)
- provide a tee section at the end of the wall |
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Considering stability, firewalls fall into two categories name them? |
- Tied Walls
- freestanding walls |
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Name three types of fire doors. |
- fire doors are rated by duration of the fire exposure
- range from 20 min to 4 hrs
Types are as follows:
- composite doors
-Hollow metal doors
- Metal clad doors
- sheet metal doors (rolling doors) |
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Name two methods of minimizing the chances of fire passing around the end of a firewall? |
- extend the fire wall 1 to 2 meters beyond the wall of a building (parapet)
- provide a tee section at the end of the wall |
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Considering stability, firewalls fall into two categories name them? |
1. Tied Walls -are secured to the structural frame - remain in place because of the structural frame
- The strength of the frame on one side, must be capable of withstanding the pull of a collapsing frame, on the other side
2. Freestanding walls
-most commonly used in one or two story industrial buildings -made of unprotected steel frame construction -entirely self-supporting under vertical loads -it is not connected to the building frame -piping should not pass through freestanding walls |
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Name three types of fire doors. |
- fire doors are rated by duration of the fire exposure
- range from 20 min to 4 hrs
Types are as follows:
- composite doors
-Hollow metal doors
- Metal clad doors
- sheet metal doors (rolling doors) |
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Why is wired glass allowed in fire doors, where ordinary glass isn't ? |
- under fire exposure, the glass will hold in place by the wire ...preventing spread to other areas |
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Describe the test used to establish the surface burning characteristics of interior finishes and the types of data such testing would produce? Or Describe the purpose and operation of Steiner tunnel test? |
Steiner Tunnel: -used to determine surface burning characteristics (flame spread-fuel contributed- smoke produced) - the material to be tested ..is fitted beneath a removeable lid with the normally exposed surface facing down into the furnace - burns for 10 minutes - rating for cement board is 0 -rating for red oak is 100 - materials being tested are compared to these - floors are now tested face up as that is how they are laid
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Fire doors maintenance - list requirements |
- examine hardware - inspect for physical deterioration (damp conditions) - keep door openings clear - do not use blocking wedges for doors that should be in closed position - do not paint fusible links - make sure automatic closing doors work - replace broken glass with wired glass (1/4" thickness) - repair damage caused by lift trucks |
