The present invention relates to a bonding molding strip for installing an indoor decorative plaque and a method for installing an indoor decorative plaque using the same, wherein, when an indoor decorative plaque which is standardized after being tailored in a square, a rectangle, or a predetermined width, as well as a soundproof panel, a soundproof sheet, a sound absorption board and the like (referred to as indoor decorative plaques hereinafter) are bonded to a wall surface to be installed (attached), the present invention is press-fit and bonded to a gap generated between the adjacent indoor decorative plaques. Therefore, according to the present invention, a bonding molding strip for installing an indoor decorative plaque is press-fit and bonded to the gap generated between the indoor decorative plaques, such that binding force between the indoor decorative plaques may be reinforced. In addition, a phenomenon that debris is infiltrated into the gap between the indoor decorative plaques to cause the indoor decorative plaques to be displaced can be fundamentally prevented, and the beautiful appearance of a wall surface decorated by the indoor decorative plaques can be maintained. Furthermore, in the case that a soundproof panel, a soundproof sheet, and a sound absorption board are attached as the indoor decorative plaques attached to the wall surface, noise is prevented from being leaked through the gap generated between the soundproof panels, the soundproof sheets, and the sound absorption boards, thereby enhancing a soundproofing effect. Not only that, the material and the shape of a cross section of the bonding molding strip bonded between the indoor decorative plaques are varied, and the color of the bonding molding strip is also varied, such that the bonding molding strip which suits well to the various colors, types, and patterns of the indoor decorative plaques can be selected and installed, thereby maintaining an installation surface of the indoor decorative plaques to be beautiful.;COPYRIGHT KIPO 2020
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