Abstract: A housing for a ventilation arrangement, with a profiled rod providing a radial extension in each corner, with a pivotted guide vane extending between the rod and the remainder of the housing. In normal wind conditions this radial extension guides air into or out of the housing. In very high wind conditions the guide vane can however pivot and/or flex to release any excessive pressure caused by the high wind.

Abstract: A ventilation apparatus arrangement 10 for ventilating the interior 12 of a building. The ventilation arrangement 10 includes a duct 18 extending to above the roof 14 of the building. The duct 18 is square in cross section and is divided into four quadrants by internal vertical divider plates. A louvre arrangement 22 is provided on each side of the upper part of the duct 18 to receive air into the building on a windward side of the duct 18, and to expel air from a leeward side of the duct 18. A closure arrangement 26 is provided for selectively partially or wholly closing the louvre arrangements 22, for instance in the event of bad weather.

Abstract: A lighting arrangement is provided on each corner of the housing of a ventilation arrangement. Each lighting arrangement comprises a profiled rod of acrylic material with a plurality of LED's shining downwardly into an upper end of the rod, with light being reflected outwardly, and particularly by bubbles within the rod. A reflective plate is provided at a lower end of the rod to reflect light back up the rod.

Abstract: A housing for a ventilation arrangement, with a profiled rod providing a radial extension in each corner, with a pivotted guide vane extending between the rod and the remainder of the housing. In normal wind conditions this radial extension guides air into or out of the housing. In very high wind conditions the guide vane can however pivot and/or flex to release any excessive pressure caused by the high wind.

Abstract: A ventilation arrangement housing which has an upper curved guide member and a cruciform arrangement of divider plates to define the housing into quadrants. Air may enter and exit the housing via a louvre arrangement.

Abstract: A lighting arrangement is provided on each corner of the housing of a ventilation arrangement. Each lighting arrangement comprises a profiled rod of acrylic material with a plurality of LED's shining downwardly into an upper end of the rod with light being reflected outwardly, and particularly by bubbles within the rod. A reflective plate is provided at a lower end of the rod to reflect light back up the rod.

Abstract: A louvre arrangement for a ventilation arrangement. The louvre arrangement defining a plurality of passages into a housing. The passages extending generally upwardly inwards, and having an upper concave surface to urge air passing therethrough to turn inwardly and downwardly.

Abstract: A ventilation arrangement for ventilating the interior of a building. The arrangement includes a duct extending to above the roof of the building. The duct is square in cross section and is divided into four quadrants by internal vertical divider plates. A louvre arrangement is provided on each side of the upper part of the duct to receive air into the building on a windward side of the duct, and to expel air from a leeward side of the duct. A closure arrangement is provided for selectively partially or wholly closing the louvre arrangements, for instance in the event of bad weather.