Retrofitting solar shading

BRE (Building Research Establishment) is an independent, research-based consultancy, testing and training organisation, operating in the built environment and associated industries.

Retrofitting solar shading (IP 3/17) was written by Paul Littlefair and published by BRE on 2 November 2017. It replaced BRE Information Paper 11/02, which was withdrawn.

Solar shading can have important benefits for the environment of buildings; reducing glare and overheating, and providing savings in cooling energy. Productivity and staff morale drop with high internal temperatures and there may be adverse effects on health. Particular problems can occur in extensively-glazed buildings, or those with intensive computer use.

Compared with the alternative of installing air conditioning, solar shading can be a highly cost-effective way to control overheating. Solar shading can be particularly effective as part of a package of passive measures including night ventilation and the use of more efficient equipment and lighting controls.

This 8-page Information Paper describes the solar shading systems commonly retrofitted to buildings, and provides guidance on the selection and design of appropriate systems. It is intended for use by building owners, facilities managers, energy auditors, interior designers and architects.

--BRE Group