Roof that cleans the air

Trebolit Elastolit NOXOUT is a waterproof product for roofs that neutralizes nitric oxide particles. NOXOUT is coated with titanium dioxide, which together with the sun’s UV light converts the NOx particles and thus purifies the air.

Nitrogen oxides (NOx) are air pollutants in the form of exhaust fumes from vehicles and industry which are harmful to humans and the environment. Trebolit Elastolit NOXOUT is coated with a slate that acts like a catalyst, which reduces the concentration of nitric oxide in the air.

With the help of UV light on the NOXOUT slate, the nitrogen oxides are con- verted into nitrate, which instead becomes nutrients for plants. A catalyst, in this case Titanium dioxide (TiO2), accelerates the reduction of NOx considerably and enables the reactions to take place at a much lower temperature and much faster.

An area of 1,000 m2 NOXOUT roof neutralizes NOx particles corresponding to approximately 17,500 miles of driving.