Abstract: Described is a composite comprising at least one textile sheet material composed of synthetic polymer fibers and at least one textile sheet material composed of inorganic fibers, which textile sheet materials are joined to one another by yarns.The textile sheet materials are preferably joined together by sewing, knitting or stitch-bonding.The composite is especially useful as reinforcement for the production of roofing felts.

Abstract: There is described a support web for roofing membranes which comprises a spunbonded made of polyester filaments. The spunbonded has a basis weight of from 50 to 100 g/m.sup.2 coupled with a filament denier of from 1 to 8 dtex and has been consolidated with a fusible binder. This produces a high tear propagation resistance and nail pullout strength and also good dimensional stability at high temperatures. The spunbonded support web is therefore particularly suitable for bitumenized roofing membranes.

Abstract: A laminate which, when used as a carrier web for roofing and sealing sheets, shows good flammability properties combined with improved mechanical properties and which comprises a layer of synthetic fibers and a layer of mineral fibers is obtained by needling two preconsolidated fiber webs, of which one comprises synthetic fibers and the other mineral fibers. The needling produces a strong positive join of the two webs, as a result of which the tendency for the two layers to delaminate under extreme thermomechanical conditions is avoided.

Abstract: A support web is described for roof foundation webs which comprises a spunbonded web of polyester filaments. The spunbonded web has a basis weight of 50 to 100 g/m.sup.2 and a filament denier of 1 to 8 dtex. It has been thermomechanically preconsolidated by means of a smooth calender and end-consolidated by means of a binder. This produces a high tear propagation resistance and nail removal resistance and good dimensional stability at high temperatures. The spunbonded web is therefore particularly suitable for use as a support web for bituminized roof foundation webs.

Abstract: Laminates, which are composed of a preconsolidated synthetic fiber web and a preconsolidated mineral fiber web, which are bonded to each other by needling, are improved in respect of their dimensional stability, in particular in the transverse direction, when the preconsolidated mineral fiber wet contains reinforcing yarns of a mineral material and extending in the longitudinal direction.They are preferably used as carrier web for roofing and sealing webs.