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Thermal Comfort Legislation

Thermal Comfort is an essential consideration for any workplace as it has a direct impact on employees and their performance.  Solar Window Film can be used to improve thermal comfort, and ensure compliance with thermal comfort legislation.


The Regulations

Regulation 7 of the Workplace (Health, Safety and Welfare) Regulations 1992 deals specifically with the temperature in indoor workplaces and states that:

  • During working hours, the temperature in all workplaces inside buildings shall be reasonable.
  • However, the application of the regulation depends on the nature of the workplace i.e. a bakery, a cold store, an office, a warehouse.


The law does not state a minimum temperature, but the temperature in workrooms should normally be at least 16°C, or 13°C if much of the work is physical.




Where the temperature in a workroom would otherwise be uncomfortably high, for example because of hot processes, the design of the building, or the amount of glazing subject to direct sunlight, all reasonable steps should be taken to achieve a reasonably comfortable temperature, for example by:

  • insulating hot plants or pipes;
  • providing air-cooling plant;
  • shading windows;
  • sitting workstations away from places subject to radiant heat.


 Achieving Compliance

Solar Window Film can reduce Solar Heat Gain by up to 86% – providing a more comfortable working environment for employees.

It can act as a passive control measure to help achieve compliance of Regulation 7 of the Workplace (Health, Safety and Welfare) Regulations 1992.


Achieve more than just compliancy

Solar glare and summer heat gain can adversely affect both an employee’s concentration and their productivity. The working environment is estimated to be responsible for 24% of job satisfaction, and as such is an asset to be monitored and controlled.

Historically, there has been focus on improving the efficiency of buildings (their design and climate control systems) in order to drive down overall occupancy costs.

Recently however, there is a greater focus on effectiveness – improving the way that people work. The aim is to get the most from the employees; after all, they are arguably a company’s greatest asset and are where most money is spent.







Scientific evidence

The Graph below is based on research by Helsinki University of Technology “Effect of Temperature on Task Performance in Office Environment.” It shows how relative productivity changes with temperature.







Source: Productivity Science.com

Scientific studies confirm that indoor temperatures can significantly impact on worker productivity. Although there are slight differences over what is believed to be the “optimum” temperature, they concur that it lays within one or two degrees of an optimal “comfort zone” of 21°C to 23°C.


Further Information:

For more information on thermal comfort in the workplace and thermal comfort legislation, please visit: www.hse.gov.uk/temperature/thermal/index.htm

Is an issue such as overheating affecting the thermal comfort of your employees? Speak to a member of our team on 0333 800 2400 or use the form below to find out how window film can help.

We’re perfectly placed to help, whatever your requirement. Take a look at our extensive range of products and services, or gain more insight into our solutions by reading our case studies and articles.

ARC Window Films

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