| 摘要 |
The invention concerns a method for producing a covering element made from natural fibres, in particular cellulose, impregnated with bitumen, comprising a step of coating at least one of two faces of a fibre mat (4) followed by a step of impregnating with bitumen, the coating being carried out with a liquid composition (5) comprising at least one resin and/or at least one pigment. The liquid composition is a dye composition comprising at least one pigment and at least one resin, and the method involves adding an additive to the liquid composition (5), said additive having fireproof properties and comprising at least graphite and a cooling agent. Preferably, the mat (4) is coated with the liquid composition comprising the fireproof additive using a roller. |
