The present invention is designed for the construction of indoor floors of a house building in which a rubber sponge plate coated with a strong adhesive is applied to one side of a foamed polyethylene sheet having a non-absorbing and high thermal insulation effect, and a release paper is attached to the rubber sponge sheet. As the structure of the joint filler tape, when the bottom mortar layer is installed, the expanded polyethylene plates of the joint filler tape are not bonded directly to the wall but are bonded to each other by a rubber sponge board having a very strong adhesive force. There is little fear of the tape falling off, and the rubber sponge board is laminated on the foamed polyethylene board, and the complementary action further enhances the sound insulation, dustproofing, and heat insulation effect, and the construction is simple, which shortens the air, and greatly reduces the construction cost. You can save.
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