Abstract: An arrangement for an apparatus (1) for application of roof covering (2) and comprising a wagon (4) moveable by aid of wheels (3) intended to join together two unrolled rolls of roof covering in connection to a joint (5) on top of each other lying covering layers (6, 7) by aid of a hot air aggregate (8) supported by said wagon (4), which via a nozzle (9) blows hot gas into said joint (5) at the same time as the wagon (4) is moved forwards and at least one operating pressure roller (10) included in said wagon (4), which is intended to press together the covering layers (6, 7) lying on top of each other.

Abstract: An arrangement for an apparatus (1) for application of roof covering (2) and comprising a wagon (4) moveable by aid of wheels (3) intended to join together two unrolled rolls of roof covering in connection to a joint (5) on top of each other lying covering layers (6, 7) by aid of a hot air aggregate (8) supported by said wagon (4), which via a nozzle (9) blows hot gas into said joint (5) at the same time as the wagon (4) is moved forwards and at least one operating pressure roller (10) included in said wagon (4), which is intended to press together the covering layers (6, 7) lying on top of each other.

Abstract: The invention relates to an arrangement in a hot air aggregate comprising a cover (2) having a built-in fan (3), an enclosed chamber (4) after said fan (3) which extends into a conically formed, front portion (5), to which a burner unit (7) having an enclosed burner (9) supplied with a gas flow and a nozzle (10) are provided via a connecting coupling sleeve (6).

Abstract: The invention relates to an arrangement in a hot air aggregate comprising a cover (2) having a built-in fan (3), an enclosed chamber (4) after said fan (3) which extends into a conically formed, front portion (5), to which a burner unit (7) having an enclosed burner (9) supplied with a gas flow and a nozzle (10) are provided via a connecting coupling sleeve (6).

Abstract: A separation layer (12) for laying grass surfaces (10; 16) on a sand or gravel base (13), which layer is in the form of a rigid plastic sheeting with parallel side edges. The surface of the sheeting is embossed by thermo-forming so that it presents a uniform pattern of deep embossings (14). These form rows which extend perpendicular to said side edges. The parallel rows are each connected to adjacent embossings in the same row via bridges (15) so that each row of embossings in cooperation with adjacent rows creates a stiffening of the sheeting.