Insulation Performance and Improvements (Leaving Cert Construction Studies): Flashcards
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Practise the cards
10 cards from this deck
Two main retrofit insulation methods
Two main retrofit insulation methods
Cavity filling & external wall insulation (EWI)
Key advantage of EWI
Key advantage of EWI
Maintains internal room dimensions
Three EWI materials
Three EWI materials
Mineral wool, polystyrene, wood fibre
Material used to fill gaps in EWI
Material used to fill gaps in EWI
Expanding foam
Surface condensation cause
Surface condensation cause
Warm moist air contacts cold surface
Where interstitial condensation occurs
Where interstitial condensation occurs
Within building materials
Correct vapour barrier placement
Correct vapour barrier placement
Warm side of insulation
Definition of thermal looping
Definition of thermal looping
Air circulation between inner leaf & insulation
Causes of thermal looping
Causes of thermal looping
Dropped mortar, insufficient ties, poor installation
Max effectiveness loss from thermal looping
Max effectiveness loss from thermal looping
Up to 50%