Decrement Delay

Decrement Delay

Different materials, then, allow the passage of heat at different rates. The time it takes the peak temperature on the outside of a material, such as a wall or a roof, to make its way to a peak temperature on the inside face, is called 'time lag' or, more commonly, 'decrement delay'.

This resource from GreeSpec provides an introduction to decrement delay, calculation methods, and explains the importance of the concept.

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