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Sustainable Construction
Quick questions on Energy efficiency in buildings - CCEA GCSE Construction
6short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is insulation?Show answer
Common measures include loft and roof insulation, cavity wall insulation (filling the gap in a cavity wall), insulated floors, double or triple glazing (two or three panes with a gap that traps air), and draught-proofing to stop air leaking through gaps.
What are u-values?Show answer
The performance of a part of the building is measured by its U-value.
What are energy ratings?Show answer
Buildings are given an energy rating that shows how efficient they are, usually on a scale from A (most efficient) to G (least efficient), shown on an Energy Performance Certificate. A higher rating means lower running costs and lower carbon, and helps buyers and tenants compare buildings.
What is q1?Show answer
Name two parts of a house through which heat is lost. [2 marks]
What is q2?Show answer
Is a high or a low U-value better for an energy-efficient wall? [1 mark]
What is q3?Show answer
What does an energy rating of A mean compared with G? [1 mark]
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