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Home > Environment and services > Lighting 

Title: Daylight protractor No 2

Ref Code: AP69

Abstract1: Protractor for an overcast sky and vertical glazing only. For the full set, see package AP68. The protractors calculate the sky component of daylight factor. In conjunction with BRE Digests 309 and 310, they can be used to find the daylight factor at a point indoors. For assessing the loss of light to an existing building following construction of a development next door, BR209 'Site layout planning for daylight and sunlight’ should be used.



Year Published: 1991

ISBN: 978-1-86081-766-3


Pages: 1


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