Functions of Windows (Leaving Cert Construction Studies): Flashcards
📚Flashcards
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Practise the cards
10 cards from this deck
Min. window area as % of floor area for adequate light
Min. window area as % of floor area for adequate light
10% of floor area
Purge ventilation: min. opening area as % of floor area
Purge ventilation: min. opening area as % of floor area
5% of floor area for habitable rooms
% of building heat loss through windows
% of building heat loss through windows
Approximately 20%
Low E glazing function
Low E glazing function
Allows solar energy in, prevents heat escaping
Emergency escape window: min. width & height
Emergency escape window: min. width & height
450mm × 450mm
Emergency escape window: min. area
Emergency escape window: min. area
0.33m²
U-value definition
U-value definition
Measures heat through material (lower = better insulation)
Thermal bridging definition
Thermal bridging definition
Heat transfer through solids due to inadequate insulation
Background ventilation vents rule
Background ventilation vents rule
Must never be blocked or filled in
Expected lifespan of windows
Expected lifespan of windows
Upwards of 50 years