Energy efficient “cool roofs” reduce the need for air conditioning

Buildings are responsible for 40% of energy consumption and 36% of COemissions in the EU. Constructing with energy efficiency in mind, buildings can reduce energy bills and is climate-friendly.

One of the key challenges in designing energy efficient buildings is to keep a constant temperature throughout the year, irrespective of whether it is cold or warm outside. Air conditioning could do the trick but it consumes a lot of energy.  Fortunately, architects can now make use of “cool roofs” that alleviate our need for air conditioning.

The “cool roofs” work thanks to a layer of a coating, which adheres to the roof covering. This coating has a high solar reflectivity, which reduces heat penetration into a building and diminishes the need to use air conditioning. This coating is resistant to extreme temperatures and dirt.

Click here to learn more about “cool roofs” or see how chemistry contributes to low carbon economy.

Related case studies

Making renewable energy work

Salt-filled ponds accumulate and store solar energy for further use

Our society has learnt to generate energy from renewable sources such as wind and solar…


Promoting the use of renewable energy

Chemical industry-led consortium to buy renewable energy from offshore wind farm

In the Netherlands AkzoNobel has set up a consortium, which includes DSM, Google and Philips,…


Converting heat into energy

A new generator technology transforms waste heat into electricity

A thermoelectric generator (TEG) developed by Evonik makes it possible to turn waste heat from…


New polyurethane rotor blade helps wind turbines last longer

Towards more resilient wind turbines

Covestro has developed an alternative to well-established epoxy based composites, recently launching the first ever large…


Reducing air pollution

The selective catalytic reduction technology can neutralize up to 90% of nitrogen oxide emissions from diesel engines

Reducing air pollution and exhaust emissions is a major challenge for the automobile industry. Forthcoming…