The diffusion-open layer can withstand driving rain and is suitable as a breathable membrane for external protection of roof structures for pitches from 10° and extended atmospheric exposure duration.

The driving-rain resistant and diffusion-open roof-membrane Majcoat is ideal to creating a permanently wind and weather tight building envelope. It is suitable for roof applications with metal, zinc and tiled roofing. For rear-ventilated facades. Majcoat combined with recommended SIGA exterior accessories has been tested and proven by TU Berlin for driving rain resistance.