Insulation Performance and Improvements (Leaving Cert Construction Studies): Quizzes
📚Quizzes
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10 questions from this quiz
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Practise the questions
10 questions from this quiz
Why is external wall insulation (EWI) a preferred choice for retrofitting?
Why is external wall insulation (EWI) a preferred choice for retrofitting?
Doesn't affect internal room dimensions
What material is injected or blown into existing cavity walls for insulation?
What material is injected or blown into existing cavity walls for insulation?
Insulation material
Which materials are commonly used for external wall insulation?
Which materials are commonly used for external wall insulation?
Mineral wool, polystyrene, wood fibre
How many coats of render are applied in the EWI finishing stage?
How many coats of render are applied in the EWI finishing stage?
Three coats
What is used to fill gaps in insulation to prevent cold spots?
What is used to fill gaps in insulation to prevent cold spots?
Expanding foam
What causes surface condensation to occur?
What causes surface condensation to occur?
Moist warm air contacts cold surface
Where does interstitial condensation occur?
Where does interstitial condensation occur?
Within building materials
Where should vapour barriers be placed to be effective?
Where should vapour barriers be placed to be effective?
On the warm side of insulation
What causes thermal looping to develop?
What causes thermal looping to develop?
Dropped mortar and insufficient ties
By how much can thermal looping reduce insulation effectiveness?
By how much can thermal looping reduce insulation effectiveness?
Up to 50%