초록 ▼

A sub-roof for roofs with roofing boards consisting of a plurality rectangular insulating boards (1) overlapping each other in direction of the slope of the roof. Each insulating board has a parallel plane central section (3), integral with a wedge-shaped board section (2) on the ridge side and a we

A sub-roof for roofs with roofing boards consisting of a plurality rectangular insulating boards (1) overlapping each other in direction of the slope of the roof. Each insulating board has a parallel plane central section (3), integral with a wedge-shaped board section (2) on the ridge side and a wedge-shaped board section (4) on the eaves side, the thickness of which increases towards the middle of the board. The thickness of the board sections (2 and 4) on the ridge side and on the eaves side at their edge towards the central board section (3) is at least equal to the thickness of said central board portion (3) and, when thicker boards are used, reaches said thickness after going through a step (11 and 12). The insulating boards (1) are placed so that they constitute an offset double or multiple covering. Due to the wedge-shaped multiple overlap the rows of insulating boards can be shifted within the longitudinal direction, for example, to adapt to different batten intervals or spacing, whereby the effective insulating layer thickness of the sub-roof does not change noticeably and tightness is not affected.

대표청구항 ▼

A sub-roof having a ridge and eaves, comprising a plurality of overlapping generally rectangular insulating boards, each of which comprises: (a) a central section having upper and lower surfaces extending parallel to each other, and having a uniform thickness; (b) a lower edge section extending in t

A sub-roof having a ridge and eaves, comprising a plurality of overlapping generally rectangular insulating boards, each of which comprises: (a) a central section having upper and lower surfaces extending parallel to each other, and having a uniform thickness; (b) a lower edge section extending in the direction of said eaves, having a lower surface integral with, and extending in the same plane as, the lower surface of said central section and an upper surface tapering to the edge of said lower edge section and having a thickness at the point said lower section joins said central section which is greater than the thickness of said central section to form a step on said upper surface of said lower edge section; and (c) an upper edge section extending in the direction of said ridge, having an upper surface integral with, and extending in the same plane as, the upper surface of said central section and a lower surface tapering to the edge of said upper edge section and having a thickness at the point said upper section joins said central section which is greater than the thickness of said central section to form a step on said lower surface of said upper edge section.