FIELD: construction.
SUBSTANCE: invention relates to roofing insulation, in particular to roof and/or underburden film, preferably provided in roofs with steep slopes with adjoining planes of roof. Roofing insulation is equipped with glue zones located on the side of longitudinal edges, besides, on the lower side and on the upper side there is at least one glue zone on the side of the longitudinal edge. Bottom side and facing upper side facing the outer side are identical in the laid state. Roof insulation comprises a lower layer having a lower side, and an upper layer having an upper side. Lower layer is made symmetrical, preferably identical to the upper layer, and the whole roof insulation has a laminated structure which is symmetrical relative to the middle plane of the roofing insulation.
EFFECT: reduced number of scraps.
13 cl, 11 dwg
