Abstract: A method for generating source code from at least one hierarchical block of a block diagram includes: reading in a block diagram; replacing a reference by a referenced data object; determining at least one code generation setting on the basis of the referenced data object; generating an intermediate representation; performing at least one optimization on the intermediate representation; and translating the intermediate representation into source code.

Abstract: A roof vent (8) comprises a conduit having an open entry end adapted for being arranged in sealing communication with an aperture in a roof surface, and an exit end spaced from said entry end, shield means (31) adapted for preventing entry of rain into said conduit, a valve assembly for controlling flow of air or gas, said valve assembly comprising a valve member (13, 22) adapted for opening to passage of air or gas when the pressure at the entry end exceeds the pressure at the exit end and adapted for closing on other conditions to prevent back-flow of air or gas, and thermostat means (27) adapted for opening said valve member to bidirectional passage of air or gas when the temperature at said thermostat means exceeds a predetermined level.

Abstract: A hollow building element of a plastics material comprises an upper wall, a lower wall, a pair of opposite side walls interconnecting the lateral edges of the upper and lower walls, a joining member in the form of a cylindrical, slotted, downwardly open flange provided at the upper edges of each side wall, the lower end of a side wall being integrally connected to an anchoring element for anchoring the building element to a support and the lower end of the opposite side wall being integrally connected to a guide member adapted to engage the anchoring member of an adjacent building element so as to maintain the lower ends of two adjacent side walls in spaced relationship and so as to form a tight connection between such elements.

Abstract: In a roof or wall structure comprising ablong plates having lateral edge portions in the form of partially open cylindrical flanges and in which a flange of one plate is snap locked over a flange of an adjacent plate there is provided rigid beams having at each lateral edge a flange which flanges are snap locked to cylindrical flanges of adjacent oblong plates.

Abstract: Plate-shaped roofing element comprising: adhesive foam plastic having a surface facing upwards in a mounted position and having a covering plate comprised of bituminous roofing felt with surface facing the element being covered with a layer of gravel or pebbles, and a layer of glass fiber contacting said surface of said roofing felt and having through holes through which the adhesive foam plastic during foaming becomes adherent to said bituminous roofing felt.