| 摘要 |
An underroof for a sloping exterior roof and comprising a moisture absorbing layer (1) which on both sides comprise spaced, substantially horizontal highly diffusion resistant zones (2, 3), the diffusion resistant zones (2) on the top side of the moisture absorbing layer (1) partly overlapping the diffusion resistant zones (3) on the underside and being water tightly connected with the diffusion resistant zones on the underside at their upper edges (4). The underroof is impermeable to water flowing along the top surface thereof but has a sufficiently high resistance to diffusion to prevent summer condensation. Furthermore, it is capable of absorbing and discharging condensate formed on its underside. |
