Name four forms of insulation that are used in the home - Junior Cycle Home Economics - Question 16 - 2018
Question 16
Name four forms of insulation that are used in the home.
(i) ________________
(ii) ________________
(iii) ________________
(iv) ________________
Worked Solution & Example Answer:Name four forms of insulation that are used in the home - Junior Cycle Home Economics - Question 16 - 2018
Step 1
(i) Polystyrene sheets/pellets, fiberglass
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Answer
Polystyrene sheets and pellets are common insulation materials used in walls and roofs. Fiberglass insulation, typically installed in batts or rolls, provides excellent thermal resistance.
Step 2
(ii) Still air in double-glazed windows and cavity walls
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Answer
Double-glazed windows work by trapping a layer of still air between two panes of glass, significantly reducing heat loss. Similarly, cavity walls create a space that contains air, enhancing thermal performance.
Step 3
(iii) Heavy fabric curtains
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Answer
Heavy fabric curtains can help insulate a room by preventing heat loss through windows. They create a barrier that reduces drafts and retains warmth within the living space.
Step 4
(iv) Lagging jackets, foam insulation
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Answer
Lagging jackets, commonly used on hot water pipes, minimize heat loss. Foam insulation, often applied to walls and roofs, provides an effective thermal barrier and improves energy efficiency.
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