A lot of housing and industrial buildings require coating insulation. In a significant part of them, fibre-concrete boards have been used as roof coatings. To produce fibre-concrete, originally asbestos was used as a reinforcement fibre, but when asbestos related problems were acknowledge, its use was being gradually reduced. From the 1990s on, asbestos was being substituted by other kind of fibres, such as cellulose fibres, glass fibres or vinyl fibres. Demolition of those fibre-cement elements containing asbestos is really dangerous and is to be strictly controlled. Although the fibre-cement is not a friable material, if asbestos microfibers are inhaled pleural cancer risk rises enormously. This demolition process is really expensive and an alternative is VIPEQ projected cork encapsulation, which enables to extend the coating lifespan.
Projected cork adheres perfectly over any kind of surface, such as corrugated sheet, without requiring any previous treatment but it to be clean, dry, dust and grease free. If there were leakages, these should be treated prior to the cork projection.