Cool down your work climate the smart way

During the last decade, everyone has been able to observe the steady increase of temperature in the world. This change in the global climate has local consequences: excessive accumulation of heat in buildings leading to difficult working/living conditions for humans and animals. Many solutions have been imagined to solve this issue. Some are active solutions like air conditioning while others are passive like our Cool-FX coating.

save costs and energy

Cool roofing coatings are a growing solution in many countries to reduce the impact of heat during warm seasons. Read in our whitepaper how building climates will remain more manageable when using a roof cooling coating. You can also save energy and create a more comfortable climate indoor.

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Cool-FX, the temporary cool roofing coating solution

Cool-FX is a temporary water-based roof cooling coating specifically developed to reflect solar radiation on barns, skylights, and commercial/office buildings (tar, gravel, and metal roofs). In the summer during warm weather, roofs can warm up to well over 70 °C (160 °F). This heating up causes undesired temperature increases underneath the roof. By painting the roof surface white, much of the solar radiation will be reflected. The treated roof surfaces can be cooler by as much as 40 °C (100 °F) compared to untreated roofs. This can lower the inside temperature up to 7 °C (45 °F) and can save a considerable amount of energy.

  • Reduced heat gain inside the building, as a white or reflective roof allows a decrease of internal building temperature of 2 - 7°C (35°F to 45°F) compared with a non-protected roof.
  • Improved comfort for people or animals.
  • The product gradually wears of and the roof returns to its original colour due to weather effects, so optimal heat absorption is achieved in wintertime.
  • Saving on your energy costs for airconditioning.
Applied to the roof, this coating cooles down your hot office building


  1. Barn roofs (galvanized, metal).
  2. Tar and gravel roofs of commercial buildings and offices.
  3. Skylights.


Shake or stir before use. Mix Cool-FX with clean water according to the desired concentration. Mix well until a homogeneous liquid is obtained. The ready-to-spray liquid can be sprayed with standard spray equipment. Thoroughly clean spray equipment with water after use.

Concentration* Type of roof Area in m2 per bucket
1 to 2 Tar and gravel 250
1 to 3 Tar, metal (older) 300
1 to 4 Metal (new) 350

(* 1 part Cool-FX to # parts of water)


Cool-FX is a temporary coating that will wear off in time according to the concentration and weather circumstances. The cooling effect of Cool-FX is on average 4 months. Cool-FX used on a porous surface will generally require more time to wear off completely. No specific cleaner is needed to remove Cool-FX.


Cool-FX is available in 20 Kg buckets and should be kept from freezing.



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Roof coating ensures a more pleasant interior climate in hot summers

Anyone who has tried the heat-reflecting Cool-FX roof coating never looks back. It stays much cooler inside and the air conditioning is needed les often. This is what his customers tell Berry Rodenburg of the company JG Sproeibedrijf. 

The roofs of company buildings are generally black. This causes these buildings to significantly heat up in summer and thus transfer the heat inside. This, in turn, causes the working climate in the building to become unpleasant and the air-conditioning systems work overtime. In fact, a building’s roof should really reflect light and heat in the summer.
The Cool-FX coating was developed for this purpose. The company JG Sproeibedrijf in Maasdijk in the Netherlands has had experience with this coating since its original launch. ‘Every year we acquire more customers for this product. They hear about it via social media, colleagues, or when we approach them directly. They then decide to try it out one time and come back every year after that,’ says Berry Rodenburg.
He manages the company together with John Grootscholten. Their customer base was originally in the greenhouse horticulture sector. They apply chalk or coatings to greenhouse covers and during crop changes also clean the inside of greenhouses. However, since they added Cool-FX to their product line, their customer base has become very diverse. ‘Shops, day nurseries, gyms, stables, production halls. All buildings with flat, black roofs. Our customers regularly report that they immediately notice that conditions inside become far more pleasant after we have coated the roof,’ he says.

‘Cool-FX is a coating with a pigment that reflects sunlight. The tar paper only becomes 40°C instead of approx 70°C.’

Berry Rodenburg, JG Sproeibedrijf

Manual application

Cool-FX is a coating with a pigment that reflects sunlight. ‘The tar paper only becomes 40°C instead of approx 70°C,’ Rodenburg observes. The company uses the same equipment it uses for greenhouse horticulture coatings (pump, carts, containers) connected to a chalk application gun. This enables them to walk on the roof and whiten the roof’s surface in a very short period of time. The coating contains a binding agent, so that it does not wear off with the first rain that comes along. ‘In autumn, when the weather is wetter, the coating ultimately wears off. The roof then gradually becomes clean and black. This is an advantage in winter when a warmer roof saves energy,’ says Rodenburg.
He expects high energy prices to further boost interest. After all, Cool-FX can result in significant electricity savings for air-conditioning. ‘This would benefit many buildings. It is actually strange that Cool-FX is not yet being applied everywhere,’ he says.

About Coat-FX
Coat-FX is a new brand of innovative coatings. Our solutions affect surfaces resulting in a positive effect for the environment and the user.

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