Last edited 12 Jan 2021

Glazing ratio

Glazing ratio is: ‘The proportion of glazing to opaque surface in a wall. Also called window-to-wall ratio, it is a key variable in façade design affecting energy performance in buildings.’

Ref Climate Emergency Design Guide: How new buildings can meet UK climate change targets, published by the London Energy Transformation Initiative (LETI) in January 2020.

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