Roof substructure which comprises plastic insulating panels and is intended for steep-pitched roofs

摘要

The roof substructure comprises insulating panels (1). Each insulating panel (1) is provided with a plurality of water-discharging transverse channels (2) and a longitudinal channel (3). The longitudinal channel (3) runs over the entire length of the insulating panel (1) and is in connection with the transverse channels (2). The transverse sides (4, 4') of each insulating panel (1) are provided with water-discharging edges (5). Rainwater is discharged to the roof gutter by the system of the transverse channels (2), the longitudinal channel (3) and the side edges (5). Consequently, rainwater seeping through to the screed base in the case of missing roofing tiles is avoided. <IMAGE>