Roof covering (I) for flat roofs, comprises (A) a polymeric sealing layer and (C) a self-adhesive layer, separated by a soft elastomeric intermediate layer (B).

Roof covering (I) for flat roofs, comprises (A) a polymeric sealing layer and (C) a self-adhesive layer, separated by a soft elastomeric intermediate layer (B).

Panels with substantially integrated watershedding features may be installed on the roof a house or other structure in lieu of traditional roofing materials. The panels include a body formed from a mixture of filler materials and polymeric binder materials, which can include recycled materials, with watershedding features generally formed with and/or integrated with the panels. The panels also can be installed in overlapping courses along a roof with the watershedding features incorporated along one or more peripheral edges. The watershedding features of adjacent panels further can cooperated to collect and divert water away from the upper surfaces and/or away headlap and/or sidelap joints defined between the panels.

A metal roofing system contains, in order a roof deck, a fire resistant (FR) fleece, and a metal sheeting system. The second side of the FR fleece faces the roof deck. The FR fleece contains a plurality of FR staple fibers and a plurality of first char scaffold fibers. The FR fleece has a fleece thickness defined as the distance between the first side and the second side. The metal sheeting system contains a plurality of metal sheets having an upper and lower side, where the lower side of the metal sheeting system faces the first side of the FR fleece. The metal sheets have an average metal sheet thickness defined as the distance between the upper and lower sides, where the thickness of the FR fleece is at least about 3 times the average metal sheet thickness. The FR fleece has a density of less 0.5 g/cm.sup.3.

A metal roofing system contains, in order a roof deck, a fire resistant (FR) fleece, and a metal sheeting system. The second side of the FR fleece faces the roof deck. The FR fleece contains a plurality of FR staple fibers and a plurality of first char scaffold fibers. The FR fleece has a fleece thickness defined as the distance between the first side and the second side. The metal sheeting system contains a plurality of metal sheets having an upper and lower side, where the lower side of the metal sheeting system faces the first side of the FR fleece. The metal sheets have an average metal sheet thickness defined as the distance between the upper and lower sides, where the thickness of the FR fleece is at least about 3 times the average metal sheet thickness. The FR fleece has a density of less 0.5 g/cm.sup.3.

Some embodiments of the present disclosure relate to a method comprising obtaining a mixture comprising at least one vinyl polymer, at least one organic acid, and at least one hydronium ion donor. In some embodiments, the method comprises reacting an —OH group of the B polymer chain segment with the at least one organic acid in the presence of the at least one hydronium ion donor, so as to form at least one polyvinyl ester. Some embodiments of the present disclosure relate to a roofing material comprising at least one reinforcement material and at least one polyvinyl ester.

Some embodiments of the present disclosure relate to a method comprising obtaining a mixture comprising at least one vinyl polymer, at least one organic acid, and at least one hydronium ion donor. In some embodiments, the method comprises reacting an —OH group of the B polymer chain segment with the at least one organic acid in the presence of the at least one hydronium ion donor, so as to form at least one polyvinyl ester. Some embodiments of the present disclosure relate to a roofing material comprising at least one reinforcement material and at least one polyvinyl ester.

Building panels, assemblies of building panels, and associated methods are provided. A building panel includes a structural core, such as a set gypsum core, at least one filamentous scrim associated with the core, and a nonwoven mat facer.

Building panels, assemblies of building panels, and associated methods are provided. A building panel includes a structural core, such as a set gypsum core, at least one filamentous scrim associated with the core, and a nonwoven mat facer.

A tufted geosynthetic lightweight ballast system for roof protection in which the system comprises a composite of one or more geotextiles tufted with one or more synthetic yarns.