Document downloads - Rights of light case law
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The validity of daylight calculations in rights to light cases (RICS)
The aim of this research was to discover whether it would be possible to justify an alternative measure of daylight sufficiency that would satisfy the requirement of a court and also be capable of being used in negotiations of compensation.
By testing the validity of the original research, which has underpinned the current methods without question since 1923 and comparing this with alternative methods of measurement, a new standard was developed which more accurately represents the value of daylight in a room. Further research, experimentation and testing confirmed the levels of illuminance required for sufficiency.