| 摘要 |
FIELD: construction, particularly vented roofs. ^ SUBSTANCE: vented roof comprises deck, vapor- and heat insulation means, vapor-permeable water-tight membrane of roll material overlapping each other and roof covering of steel profiled material laid on base and secured to roof frame through membrane. The frame is made of C-shaped profile having height selected to provide space between vapor-permeable water-tight membrane and heat insulation means. Widths of overlapped membrane web areas are determined as L>=S.gamma/alpha, where L is overlapped membrane web area width, cm; S is distance between heat insulation means and membrane, cm; gamma is limiting wetting angle of vapor-permeable membrane side, deg; alpha is roof inclination angle, deg. ^ EFFECT: increased roof covering base rigidity. ^ 3 cl, 5 dwg |
