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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
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)
List the advantages of foam plastics insullation
- excellent insulators
- lightweight and easy to work with
- in expensive to manufacture and purchased
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
What protection is there for foam plastics?
Thermal barriers
Describe thermal barriers
- they are required for safety prior purposes provides property protection
- -prevent he transmission
- -prevent heat transmission
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
True or false:
self extinguishing foam plastics
-There are no such thing
-Terminology shouldn't be used
Back (Definition)
A
Is there self extinguishing foam plastics?
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