| 摘要 |
A bituminous membrane (1) is described, comprising a sheet (5) of a bituminous compound onto which is placed a coated layer by coupling in order to bond a film of metallic material (3) to one face of a supporting and reinforcing film (2) made of synthetic resin, in which on the opposite side of the supporting and reinforcing film (2) made of synthetic resin is applied, by bonding, another film (4) of metallic material with a thickness (d) equal to that of the said metal film (3) applied to the other face.
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