On sunny days up to 500w/m2 of heat can penetrate windows. In addition the windows can heat up so much that the windows themselves produce the same amount of heat as a bar heater left on for two hours. Also once the heat is in the building it cannot escape, heating up offices and rooms disproportionately to the outside temperature.
With KoolShade the heat never reaches the window in the first place. This signifies an 86% reduction in heat gain caused by the sun. Typically KoolShade reduces the temperature between sun exposed glass by 10°c or more in the Canary Islands.
The reduction in heat gain caused by KoolShade means that for the majority of the year the use of air conditioning will not be necessary as the building will not heat up in the first place.
This can signify up to 40% savings in a/c bills!
How does KoolShade compare to other solar control systems?
Material |
Heat gain (%) |
| Single clear glass | 81 |
| Tinted glass | 66 |
| Internal venetian blind | 46 |
| Koolshade | 14 |
From a design standpoint, KoolShade will help to even out temperatures throughout the perimeter areas of the building. Since KoolShade is not adjustable, the engineer can confidently design a cooling load that will not fluctuate as greatly as buildings which have adjustable shading devices.
![[image]Heat Chart](images/KoolShade_heat_gain.jpg)
![[image]Shade comparison](images/beach2.jpg)