The effect of solar gain on the workplace

The British heatwave could well be over and we will see a return to ‘normal’ summer temperatures. As the temperatures drop, it might be thought that there is no longer a need for portable air conditioning , but on bright sunny days the inside of buildings will still heat up due to solar heat gain, especially in the city centres. Although the sunlight may not be as strong, the lower angle of the sun means that it is shining into buildings for longer periods during daylight hours. Buildings that have fully-glazed facades are particularly prone to over-heating caused by solar gain. C ities with a number of high rise, glass fronted buildings, such as London and Birmingham, are often 1–3°C warmer than rural locations. To counter this effect, some buildings have solar control glass installed which reflects heat and reduces glare from the sun’s rays. As well as being practical, it’s also a requirement under Approved Documents L1A and L2S ,...