| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a construction method for a waterproof sheet having sufficiently high ventilating performance. <P>SOLUTION: The waterproof sheet construction method comprises: a step of applying an asphalt-based primer onto the construction surface of a concrete structure to form a primer layer; and a step of laying the waterproof sheet on the primer layer. The waterproof sheet has an asphalt compound layer, multilayer-sheet layers each having a plurality of openings and a release sheet layer laminated in sequence. The asphalt compound layer has a self-adhesion property. The multilayer-sheet layers each have a synthetic resin layer contacting the asphalt compound layer and a non-woven fabric layer contacting the release sheet layer. The non-woven fabric layer has a basis weight of 10-100 g/m<SP POS="POST">2</SP>, a thickness of 0.10-0.50 mm and a bulk density of 100-183 kg/m<SP POS="POST">3</SP>. <P>COPYRIGHT: (C)2013,JPO&INPIT |
