Roof ventilation

A roof ventilation system, especially for a conservatory roof, comprising a cowl attachable to a ridge component of the roof and an electrically operated rotor within the cowl, wherein the cowl has rotatable clips on end extensions of the cowl that can rotate through 90° to locate in formations on the underside of the ridge component.

A roof ventilation system, especially for a conservatory roof, comprising a cowl attachable to a ridge component of the roof, an electrically operated rotor within the cowl, and a mounting plate for fixing on the underside of the ridge component, wherein, as means for mounting the cowl on the mounting plate, the mounting plate has a pair of facing grooves to receive tongue formations of the cowl in sliding fashion.

A roof ventilation system, especially for a conservatory roof, comprising a cowl attachable to a ridge component of the roof, an electrically operated rotor within the cowl, and a mounting plate for fixing on the underside of the ridge component, wherein, as means for mounting the cowl on the mounting plate, the mounting plate has shaped formations to snap-fit correspondingly shaped formations of the cowl.

A conservatory roof ridge having a ventilation system mounted thereon, the ventilation system comprising a cowl attached to a ridge component of the roof, an electrically operated rotor within the cowl, the cowl locating the rotor in an offset position relative to the roof ridge and having sides extending above the rotor, wherein, as means for attaching the cowl to the underside of the ridge, the cowl sides have outwardly directed barbs located on ribs on the ridge component underside.

A conservatory roof ridge having a ventilation system mounted thereon, the ventilation system comprising a cowl attached to a ridge component of the roof, an electrically operated rotor within the cowl, the cowl locating the rotor in an offset position relative to the roof ridge and having sides extending above the rotor, wherein, as means for attaching the cowl to the underside of the ridge, the cowl has pairs of formations on end extensions that are located on the underside of the ridge component and wedges are inserted between said formations to urge said formations outwards to hold said formations in place.

A conservatory roof ridge having a ventilation system mounted thereon, the ventilation system comprising a cowl attached to a ridge component of the roof, an electrically operated rotor within the cowl, the cowl locating the rotor in an offset position relative to the roof ridge and having sides extending above the rotor, wherein, as means for attaching the cowl to the underside of the ridge, the cowl has rotatable clips on end extensions of the cowl that can rotate through 90° to locate in formations on the underside of the ridge component.

A conservatory roof ridge having a ventilation system mounted thereon, the ventilation system comprising a cowl attached to a ridge component of the roof, an electrically operated rotor within the cowl, the cowl locating the rotor in an offset position relative to the roof ridge and having sides extending above the rotor, wherein, as means for attaching the cowl to the underside of the ridge, the roof ridge further comprises a mounting plate on the underside of the ridge component, the cowl being mounted on the mounting plate, wherein the mounting plate has a pair of facing grooves and receives tongue formations of the cowl in sliding fashion.

A conservatory roof ridge having a ventilation system mounted thereon, the ventilation system comprising a cowl attached to a ridge component of the roof, an electrically operated rotor within the cowl, the cowl locating the rotor in an offset position relative to the roof ridge and having sides extending above the rotor, wherein, as means for attaching the cowl to the underside of the ridge, the roof ridge further comprises a mounting plate on the underside of the ridge component, the cowl being mounted on the mounting plate, wherein the mounting plate has shaped formations snap-fitted into correspondingly shaped formations of the cowl.

A conservatory roof ridge having a ventilation system mounted thereon, the ventilation system comprising a cowl attached to a ridge component of the roof, an electrically operated rotor within the cowl, the cowl locating the rotor in an offset position relative to the roof ridge and having sides extending above the rotor, means for attaching the cowl to the underside of the ridge, and an air deflector counted on the underside of a ridge capping, wherein the deflector presents a pair of concave arcuate surfaces, one on each side of the ridge.