Sheet of mineral wool for sustaining vegetation on roofs

Details Sheet of mineral wool for sustaining vegetation on roofs Sheet of mineral wool for sustaining vegetation on roofs

A - Human Necessities

01

G

A01G 31/00 (2006.01) E04D 11/00 (2006.01) E04D 12/00 (2006.01)

Patent

CA 2149906

2149906 9508259 PCTABS00036 A sheet (1) of mineral wool with an improved water retention capacity, onto which parts of plants (3) are held in place on the surface (2) which faces away from the roof, is well suited for sustaining vegetation on roofs. Particularly suitable parts of plants are rooting shoots, for example sedum shoots, which are attached to the surface of the sheet (1) of mineral wool by means of an organic adhesive (4) which contains starch and/or a suitable polymer as binder. Particularly suitable as tackifier is a waterproof acrylate binder which is permeable to air and water and which decomposes after some time when exposed to the atmosphere. The permeability of the binder is guaranteed by employing it in the foamed state.

L'invention concerne une feuille (1) de laine minérale ayant une capacité améliorée de rétention d'eau, sur laquelle des parties de plantes (3) sont maintenues en place sur sa surface (2) supérieure laquelle est éloignée du toit, cette feuille étant bien appropriée pour soutenir les végétaux sur les toits. Des parties de plantes particulièrement appropriées sont les pousses ayant commencé à développer des racines, par exemple, les pousses d'orpin, lesquelles sont attachées sur la surface de la feuille (1) de laine minérale au moyen d'un adhésif organique (4) contenant de l'amidon et/ou un polymère approprié en tant que liant. Un agent collant particulièrement approprié est un liant acrylate étanche qui est perméable à l'air et à l'eau et se décompose après quelque temps lorsqu'il est exposé à l'atmosphère, sa perméabilité étant garantie par son emploi sous forme expansée.

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