JP2585928Y2 - Exterior wall structure - Google Patents

Description

[Detailed description of the invention]

[0001] The present invention relates to an elastic backup material for a water leakage prevention structure of a building exterior wall material. More specifically, the present invention relates to a backup material of a joint sealing material in a rain break structure such as a concrete panel plate or an ALC panel plate, and more particularly, to an elastic backup material for an outer wall panel plate which provides a structure having secondary waterproofness.

Conventionally, PC boards and A
A dry construction method using an LC board, various sizing boards, etc. is applied, and various sealing materials are filled in for waterproofing joints at seams of the boards, thereby following the expansion and contraction of the outer wall panel board into the building. Has been prevented. However, since the sealant is generally made from a rubbery organic material having elasticity, the deterioration of the sealant, the interface between the outer panel and the sealant during the years of the building structure. Peeling or the like occurred, which sometimes caused deterioration of the building due to water leakage.

[0003] The present invention is an elastic backup material having a novel shape intended to prevent water leakage into a building.

That is, in order to solve the above-mentioned problems, an outer wall panel is used in which the elastic backup material according to the present invention is adhered to the periphery of a building outer wall panel such as a concrete panel or an ALC plate. Thereby, an accident due to water leakage from the joint to the inside of the building can be completely prevented.

[0005] The elastic backup material of the present invention is characterized in that at least two ridges having a uniform height in the longitudinal direction are formed on the surface opposite to the surface to be bonded to the outer wall panel plate. And

[0006] By using an outer wall panel plate in which this backup material is adhered to the peripheral portion of the outer wall panel plate such that the ridge portion is on the opposite side to the adhesive surface to the outer wall panel plate, the outer wall panel plate is attached. When the construction is performed in combination, the peaks of the backup material come into contact with each other in the joint to form a water conducting portion communicating vertically and horizontally at the center of the backup material. Therefore, the water leak that has passed through the deteriorated primary waterproofing material (sealing) is discharged from the lower portion inside the joint portion through the water guide between the backup materials, and can be prevented from leaking into the inside of the building.

[0007] The elastic backup material according to the present invention must have at least two ridges having a uniform height in the longitudinal direction on the surface opposite to the surface to be bonded to the outer wall plate. For example, the cross section as shown in FIGS. 1 and 2 is a B type, and the cross section as shown in FIG. 3 is a C type. A long backup material having such a cross section is preferable. The surface opposite to the surface having the crest has a flat surface, and through the flat surface, the outer wall panel plate can be adhered to the peripheral portion using an adhesive or the like.

[0008] The backup material of the present invention is preferably made of foam. Furthermore, it is preferable that the inside of the ridge is a rubber-shaped band-shaped molded article having a hollow interior and elasticity.

[0009] As a material of the backup material of the present invention,
Natural rubber, various synthetic rubbers, vinyl chloride, polyethylene,
An elastic material such as a foam such as polypropylene is used.

[0010] An outer wall panel plate in which the backup material of the present invention is adhered to a predetermined position of a joint portion around the outer wall panel plate so that the ridge portion is on the outside may be used.

An example in which the above-mentioned outer wall panel plate is assembled during construction work will be described below. As shown in FIG. 4, FIG. 6 and FIG. 7, the ridges of the backup material of the present invention are pressed and crimped against the predetermined position between the outer wall material panels, and the secondary sealing is performed. It is formed. At the center of the joined backup material,
6 and 15 "in FIG. 6, a space communicating in the vertical and horizontal directions parallel to the joint is formed by the recess 5 or 5".

Then, a predetermined sealing material 7 is cast on the outside of the backup material of the present invention (that is, the opening of the outer wall) by a usual method. As this primary sealing material, generally available acrylic, silicone,
Any one-part or two-part amorphous sealing material such as modified silicone, polysulfide and polyurethane can be used.

FIG. 5 is a view showing a case where a crack 8 occurs between the primary sealing material 7 and the outer wall panel plate 6. Even if water from the outside passes between the peaks 2 of the backup material 1 through the cracks 8 and penetrates into the space 15, the water is a water conduction space communicating with the space 15 in the vertical direction and / or the horizontal direction.
The water leaks through the space 15 and is discharged to the outside from the lower end of the joint. As a result, even if the crack 8 occurred, water did not leak to the inside of the building.

[Brief description of the drawings]

FIG. 1 is a sectional view of a B-type backup material.

FIG. 2 is a perspective view of a backup material having another shape.

FIG. 3 is a perspective view of a backup material having another shape.

FIG. 4 is a cross-sectional view of the outer wall panel joint AA ′ or A ″ -A ″ ″ of FIG. 7;

FIG. 5 is a view showing that a crack 8 has occurred between a primary sealing material 7 and an outer wall panel plate 6;

FIG. 6 is a sectional view of the outer wall panel joint AA ′ or A ″ -A ″ ″ of FIG. 7;

FIG. 7 is an external view of the outer wall panel plate 6 when the outer wall panel plate 6 is assembled, as viewed from the back surface.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Backup material 2 Crest portion of backup material 3 Hollow portion 4, 4 ′ and 4 ″ Flat portion where backup material closely adheres to outer wall panel plate 5 and 5 ″ Concave portion of backup material 6 Exterior wall panel plate 7 Irregular primary sealing material 8 Crack 15 Space formed by the recess 5 15 "Space formed by the recess 5"

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) E04B 1/68 E04F 19/02

Claims (1)

(57) [Scope of request for utility model registration] 1. An outer wall structure in which an irregular seal is filled in joints formed by a plurality of outer wall panel plates being in close contact with each other via a backup material, wherein the backup material is uniform in a longitudinal direction. At least two ridges (2, 2 ', 2 ") having a height are formed of a long elastic body formed in parallel, and are bonded to the outer wall panel plate on a surface opposite to the ridges. And a secondary seal formed by pressure contact between the ridges of the backup material adhered to the mutually adjacent outer wall panels.