| 摘要 |
<p>A mortar substrate sheet, for placement between a substrate and mortar to be coated during installation of mortar to an outer wall of a building such as a house, comprising a water-resistant/moisture-permeable sheet 12 having water-resistant and moisture permeable properties, and a water absorption/retention sheet 13 having water absorbent and water retentive properties which is layered onto the front surface of this sheet 12, having a surface which is coated with water repellent agent having water repellent properties for only a designated period of time. Additionally, the reverse side of the water resistant/moisture-permeable sheet 12 has a resin layer 14 formed by coating or film-layering resins having elasticity. During installation, the mortar substrate sheet 11 is attached to the substrate with the resin layer 14 facing toward the substrate, lath is attached, then undercoat mortar 6 is coated. After the passage of a designated period of time, the water repellent property of the water repellent agent decreases, and water in the undercoat mortar is absorbed into the water absorption/retention sheet 13 and retained, as a result of which the undercoat mortar 6 goes into a semi-hardened state which allows the coating of the overcoat mortar 7. <IMAGE></p> |
