A roof ridge shingle unit including: a substantially elongated cover element shaped like a plurality of shingles longitudinally overlapping partially each other and having a substantially inverted V-shaped transversal cross-sectional configuration defining a pair of opposed side edges and a zenith ridge extending longitudinally therealong between the side edges, the cover element defining a top surface and an opposed bottom surface, the cover element defining longitudinally opposed first and second ends; and a first end attachment provided substantially adjacent the first end and a second end attachment provided substantially adjacent the second end. The first and second end attachments are configured and sized so that the first end attachment of the roof shingle unit is attachable to the second end attachment of a similar roof shingle units so that the roof ridge shingle units are secured to each other in a predetermined positional relationship relative to each other.

A roof ridge shingle unit including: a substantially elongated cover element shaped like a plurality of shingles longitudinally overlapping partially each other and having a substantially inverted V-shaped transversal cross-sectional configuration defining a pair of opposed side edges and a zenith ridge extending longitudinally therealong between the side edges, the cover element defining a top surface and an opposed bottom surface, the cover element defining longitudinally opposed first and second ends; and a first end attachment provided substantially adjacent the first end and a second end attachment provided substantially adjacent the second end. The first and second end attachments are configured and sized so that the first end attachment of the roof shingle unit is attachable to the second end attachment of a similar roof shingle units so that the roof ridge shingle units are secured to each other in a predetermined positional relationship relative to each other.

A converted reverse ballasted roof system is provided including a structural roof beam. Insulation is positioned upwardly adjacent the structural roof beam, and a first waterproofing membrane is arranged upwardly adjacent the first waterproofing membrane. A weighted cover board is disposed upwardly adjacent the first waterproofing membrane and a second waterproofing membrane is installed upwardly adjacent the weighted cover board. The first water proofing membrane and the second waterproofing membrane substantially seal the weighted cover board.

A converted reverse ballasted roof system is provided including a structural roof beam. Insulation is positioned upwardly adjacent the structural roof beam, and a first waterproofing membrane is arranged upwardly adjacent the first waterproofing membrane. A weighted cover board is disposed upwardly adjacent the first waterproofing membrane and a second waterproofing membrane is installed upwardly adjacent the weighted cover board. The first water proofing membrane and the second waterproofing membrane substantially seal the weighted cover board.

The present invention is a leak detection and location system that includes a waterproofing membrane; an underlayment disposed directly below the waterproofing membrane, wherein the underlayment is non-conductive and will become conductive only when saturated; a conductive layer disposed below the underlayment; a voltage source attached to the upper side of the waterproofing membrane and the lower side of the underlayment; a test set with two handheld poles and an indicator that indicates a difference between voltages detected by the handheld poles; and a device that creates an electrical field across the waterproofing membrane.

An inflatable light concentrating mirror (10) comprising a first transparent sheet (1) and a second reflective sheet (2), wherein the first sheet and second sheet are connected or sealed to each other, whereby a void is provided there-between, the void being adapted to receive a gas so as to inflate the light concentrating mirror, characterized in that the mirror further comprises tensioning means (14) adapted to produce a defined longitudinal tension (11) in at least the second sheet (2) such that wrinkles or creases therein are significantly reduced. The tensioning means comprises one or more tensioning devices (14) adapted to be attached to at least one mirror end or one free end of the second sheet, the tensioning device is configured to provide a pulling force (11) on the second sheet so as to provide the longitudinal tension.

An inflatable light concentrating mirror (10) comprising a first transparent sheet (1) and a second reflective sheet (2), wherein the first sheet and second sheet are connected or sealed to each other, whereby a void is provided there-between, the void being adapted to receive a gas so as to inflate the light concentrating mirror, characterized in that the mirror further comprises tensioning means (14) adapted to produce a defined longitudinal tension (11) in at least the second sheet (2) such that wrinkles or creases therein are significantly reduced. The tensioning means comprises one or more tensioning devices (14) adapted to be attached to at least one mirror end or one free end of the second sheet, the tensioning device is configured to provide a pulling force (11) on the second sheet so as to provide the longitudinal tension.

The present invention relates to a process for manufacturing a waterproofing membrane comprising: a preparation of a composition dispersed in a solvent; coating a reinforcement layer by application of said composition on one side of the reinforcement layer; an evaporation of said solvent; having the coated reinforcement layer dried; and an application of a bituminous mass on another side of said reinforcement layer, characterized in that, during the preparation of the composition, the composition is dispersed in a solvent chosen in the group consisting of a solvent other than water or water. The present invention relates also to a composition for a waterproofing membrane.

The present invention relates to a process for manufacturing a waterproofing membrane comprising: a preparation of a composition dispersed in a solvent; coating a reinforcement layer by application of said composition on one side of the reinforcement layer; an evaporation of said solvent; having the coated reinforcement layer dried; and an application of a bituminous mass on another side of said reinforcement layer, characterized in that, during the preparation of the composition, the composition is dispersed in a solvent chosen in the group consisting of a solvent other than water or water. The present invention relates also to a composition for a waterproofing membrane.

A multilayer composite film that includes an outer ETFE layer adhered to a polyethylene terephthalate (PET) layer. These layers are adhered together by a fluoropolymer adhesive. The multilayer composite film also include an infra-red (IR) radiation rejection layer that reflects or absorbs more than 50% of incident IR radiation. A second ETFE layer can be adhered to an inner surface of the structural polymer layer. The composite films are useful in structural applications and can withstand environmental exposure.