JP2018162664A - Joint filling method of wall panel and wall panel structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a joint filling method of a wall panel capable of making a recess formed at a joint inconspicuous even if the joint is covered with a finishing material such as putty, and a wall panel structure.SOLUTION: A joint filling method of a wall panel includes: a sealing material filling step for filling a sealing material 14 into a recess part arranged along a joint 1c; a curing step for curing the sealing material filled into the recess part for a predetermined period of time; a joint filling material filling step for filling a joint filling material 16 into the recess part after applying a primer after the curing step; and a coating step for applying a finishing material 18 to a filled surface into which the joint filling material is filled. The sealing material filling step includes a step for preventing adhesion of the sealing material and the wall panel before filling the sealing material and arranging an insulation material capable of forming a non-adhesive area between itself and the sealing material on a bottom surface of the recess part, and the joint filling material is a putty material whose volume shrinkage rate is smaller than that of the sealing material.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a method for filling a joint formed by abutting wall panels and a wall panel structure.

  Conventionally, a technique for filling joints of exterior panels such as lightweight cellular concrete panels is known (see Patent Document 1). In this type of technology, for example, the sealing material is filled in the joints of the exterior panel in order to improve the waterproof performance.

JP 2001-49830 A

  Even if the wall panel joint is filled with a sealing material, the joint itself remains as a pattern.To erase this joint, fill the joint with a putty from the top of the sealing material, and then finish painting. There is a need to do. However, when the sealing material contracts, a dent is generated in a portion covering the joint, and the joint cannot be completely hidden, which may impair the appearance.

  An object of the present invention is to provide a wall panel joint filling method and a wall panel structure capable of making the joint covered with joint filler such as putty less noticeable. .

  That is, according to the wall panel joint filling method according to the present invention, a sealing material filling step for filling a concave portion provided along the joint where the wall panels are abutted with each other with a sealing material, and a sealing material filled in the concave portion with a predetermined sealing material are provided. A curing step for curing for a period of time, a filling step for filling a joint filling material into the recesses after applying a primer after the curing step, and a coating for applying a finishing material to the filling surface filled with the joint filling material And a step of filling the sealing material with the sealing material, the step of filling the sealing material with the insulating material, which prevents adhesion between the sealing material and the wall panel and forms a non-adhesive region between the sealing material and the sealing material. The joint filling material is a putty material having a smaller volume shrinkage rate than the sealing material.

  Further, the wall panel joint filling method according to the present invention includes a sealing material filling step of filling a concave portion provided along the joint where the wall panels are abutted with each other, and a sealing material filled in the concave portion with a predetermined sealing material. A curing step for curing for a period of time, a filling step for filling a joint filling material into the recesses after the curing step, and a coating step for applying a finishing material to the filling surface filled with the filling material, In the joint filling material filling step, before filling the joint filling material, an insulating material capable of preventing adhesion between the sealing material and the joint filling material and forming a non-adhesive region with the sealing material is disposed in the recess. And a step of applying a primer after disposing the insulating material in the recess, and the joint filling material is a putty material having a volumetric shrinkage smaller than that of the sealing material.

  Moreover, in the joint filling method of said wall panel, the notch surface of a wall panel may be formed with the notch along a peripheral edge, and the recessed part may be formed by butting of notches.

  Further, in the above-mentioned wall panel joint filling method, the shape of the recess when viewed in cross-section may be a rectangle with one side open.

  Further, the present invention provides a wall panel structure formed by abutting a plurality of wall panels, a recess provided along a joint formed by abutment between the wall panels, and an insulating material disposed on the bottom surface of the recess A sealing material disposed on the insulating material, a putty material having a volumetric shrinkage smaller than that of the sealing material, a joint filling material disposed on the sealing material via a primer, and filling on the joint filling material And a finishing material covering the surface.

  Further, the present invention provides a wall panel structure formed by abutting a plurality of wall panels, a recess provided along a joint formed by abutment between the wall panels, and a sealing material disposed on the bottom surface of the recess An insulating material disposed on the sealing material, a putty material having a smaller volume shrinkage than the sealing material, a joint filling material disposed on the insulating material via a primer, and a filling surface on the joint filling material A wall panel structure characterized by comprising a finishing material covering the surface.

  Moreover, in said wall panel structure, the notch surface of a wall panel may be formed with the notch along a peripheral edge, and the recessed part may be formed by butting of notches.

  In the above wall panel structure, the shape of the recess when viewed in cross section may be a rectangle with one side open.

  Further, the other wall panel joint filling method includes a sealing material filling step of filling a concave portion provided along the joint where the wall panels are abutted with each other with a sealing material, and curing the sealing material filled in the concave portion for a predetermined period. A curing step, a filling step for filling a joint filling material into the recesses after the curing step, and a painting step for applying a finishing material to the filling surface filled with the filling material. And

  In this wall panel joint filling method, the sealing material filled in the recesses of the joints in the sealing material filling step is cured for a predetermined period in the curing step, so that curing can be performed even if the sealing material has a fray (a decrease in volume due to shrinkage). Stable at the step stage. In other words, in the present invention in which the filling is filled with joint filling material and then painted with a finishing material, it is possible to suppress the occurrence of dents in the painted surface due to the shrinkage of the sealing material, and thus the smooth painted surface where the joints are not noticeable. Can be finished.

  The joint filler is preferably a putty material. The type of putty material includes mortar, urethane resin, acrylic resin and the like, but is not particularly limited, but is preferably a urethane resin-based or acrylic resin-based elastic putty material with excellent stretch performance. A urethane resin-based elastic putty material that is excellent in coating performance, has a small volume shrinkage, and has a short drying period is particularly preferable. The elastic putty material preferably has a volume shrinkage of 5% or less.

  In addition, the sealing material filling step is a step of disposing an insulating material in the recess so as to prevent adhesion between the sealing material and the wall panel and form a non-adhesive region between the sealing material and the sealing material before filling the sealing material. Is preferably included. By disposing the insulating material, adhesion between the sealing material and the wall panel is suppressed, and a non-adhesive region is formed between the sealing material and the insulating material. Therefore, at least a part of the dust generated in the sealing material is absorbed in the non-adhesive region between the sealing material and the insulating material, and the dust generated on the side where the joint filler is filled is reduced. As a result, it becomes effective to make the joint inconspicuous after painting the finish.

  In addition, the filling material filling step includes an insulating material that prevents adhesion between the filling material and the sealing material and forms a non-adhesive region between the sealing material and the recess before filling the filling material. Preferably, the step of arranging is included. By disposing the insulating material between the sealing material and the joint filling material, adhesion between the joint filling material and the sealing material is suppressed, and a non-adhesive region is formed between the sealing material and the insulating material. Therefore, even if the sealing material is rusted due to secular change, at least a part of the sealing material is absorbed in the non-adhesive region between the sealing material and the insulating material. Therefore, it can be finished to a smooth painted surface where the joints are not noticeable for a long time.

  In addition, the other wall panel structure is formed by abutting a plurality of wall panels, and is provided with a recess provided along a joint formed by abutment between the wall panels, an insulating material disposed on the bottom surface of the recess, and insulation. It is characterized by comprising a sealing material arranged on the material, a joint filling material arranged on the sealing material, and a finishing material covering the filling surface on the joint filling material.

  In this wall panel structure, the insulating material forms a non-adhesive region between the sealing material and the bottom surface of the joint recess, and a part of the fray generated in the sealing material is absorbed in the non-adhesive region. As a result, the dent of the finishing material due to the dust generated in the sealing material is hardly generated, and a wall panel structure in which the joint is not conspicuous can be realized.

  In addition, in the wall panel structure formed by butting a plurality of wall panels, the other wall panel structure is disposed on the recess formed along the joint formed by butting the wall panels and the bottom surface of the recess. It is characterized by comprising a sealing material, an insulating material arranged on the sealing material, a joint filling material arranged on the insulating material, and a finishing material covering a filling surface on the joint filling material.

  In this wall panel structure, a non-adhesion region is formed between the sealing material and the joint filling material by the insulating material, and the dust generated in the sealing material and the joint filling material is absorbed by the non-adhesion region. As a result, the dent of the finishing material due to the fraying generated in the sealing material or joint filling material is less likely to occur, and a wall panel structure in which joints are not conspicuous can be realized.

  ADVANTAGE OF THE INVENTION According to this invention, the joint filling method and wall panel structure of the wall panel which can make the joint covered with finishing materials, such as putty, inconspicuous can be provided.

It is a perspective view showing a wall panel structure concerning a 1st embodiment of the present invention partially fractured. It is sectional drawing which shows the state which faced wall panels and formed the joint. It is an expanded sectional view of a crevice formed along a joint. It is an expanded sectional view of the recessed part which shows the state by which the insulating material is arrange | positioned. It is an expanded sectional view of the recessed part which shows the state with which the sealing material was filled on the insulating material. It is an expanded sectional view of the recessed part which shows the state which the seal generate | occur | produced in the sealing material. An enlarged cross-sectional view showing a state where the sealing material is filled with joint filling material, and further, the recessed portion is coated with a finishing material on the filling surface of the joint filling material, and the wall panel structure according to the present embodiment is completed. It is. It is an expanded sectional view of the recessed part of the joint in the wall panel structure concerning 2nd Embodiment. In the wall panel structure which concerns on 2nd Embodiment, it is an expanded sectional view of the recessed part which shows the state which the fray produced in the sealing material. It is an expanded sectional view of the recessed part of the joint in the wall panel structure concerning 3rd Embodiment. It is an expanded sectional view of a crevice of a joint in a wall panel structure concerning a 4th embodiment. It is a figure showing the relationship between the waste of a sealing material and elapsed days.

(First embodiment)
DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of a wall panel joint filling method and a wall panel structure according to the present invention will be described in detail with reference to the drawings.

  As shown in FIG. 1, the wall panel structure 5 according to the present embodiment is formed by attaching a plurality of wall panels 1 a to columns or inter-columns (hereinafter collectively referred to as “columns”) W <b> 1. Further, in the wall panel structure 5, the joint 1 c of the wall panel 1 a is covered with a finishing material 18 and is subjected to a finishing process of a large wall style for the purpose of forming a flat design for a long period of time. The wall panel 1a is a concrete member applicable as an outer wall material, and is a lightweight cellular concrete panel (ALC panel) such as “Hebel Power Board” (registered trademark). Hereinafter, an ALC panel will be described as an example of the wall panel 1a.

  As shown in FIG. 2, the length L1 of the wall panel 1a is about 1800 mm to 2000 mm, and the thickness L2 of the wall panel 1a is about 35 mm to 100 mm. The width of the wall panel 1a in the direction orthogonal to the length L1 is about 500 to 700 mm. The wall panel 1a may be cut and used. For example, the length L1 or the width may be cut to about 100 mm.

  A cutout 1d is formed along the periphery of at least one surface of the wall panel 1a, specifically, an outdoor surface (a surface opposite to the side attached to the stud) when used as an outer wall material. ing. When the facets of the two wall panels 1a are butted together, a joint 1c is formed by the butting, and a recess 10 is formed by the notches 1d facing each other across the joint 1c (see FIGS. 2 and 3). .

  As shown in FIG. 3, the shape of the recess 10 when viewed in cross section is a rectangle with one side open, the depth D is about 7 mm to 15 mm, and the width W of the bottom surface is about 5 mm to 15 mm. .

  The joint filling method of the wall panel 1a according to the present embodiment is a method of filling the concave portion 10 with the sealing material 14 and the like, and finally applying the finishing material 18 to make the joint 1c inconspicuous. A step, a joint filling step, and a painting step. Each step will be described in turn.

[Sealing material filling step]
After the plurality of wall panels 1a are attached to predetermined positions of the pillar W1, the insulating material 12 is disposed on the bottom surface 10a of the recess 10 formed along the joint 1c (see FIG. 4). The insulating material 12 is arranged after a dedicated primer is applied in the recess 10. The purpose of the insulating material 12 is to prevent the sealing material 14 (see FIG. 5) from entering the back of the gap that is the joint 1c (back of the joint). Furthermore, it is important that the insulating material 12 is a member that does not adhere to the sealing material 14, and can be appropriately selected according to the material of the sealing material 14. For example, a bond breaker (also called “insulating tape”) or a backup material can be used. Can be used.

  When a bond breaker is used as the insulating material 12, a polysulfide-based, acrylic urethane-based, or polyurethane-based member is used as the sealing material 14, and as the insulating material 12, a silicon tape, a polyethylene tape, or a fluororesin is used. A tape such as a tape is preferable. When a silicone, polyisobutylene, or modified silicone member is used as the sealing material 14, a tape made of an olefin material such as polyethylene tape is preferable as the insulating material 12. When the insulating material 12 is tape-shaped, it is preferable that the tape one surface (surface which contacts the bottom face 10a) has adhesiveness from the point of the ease of arrangement | positioning to the bottom face 10a.

  When the insulating material 12 is disposed on the bottom surface 10 a of the recess 10, the sealing material 14 is then filled in the recess 10. The sealing material 14 is selected in consideration of conformity to the ALC joint, for example, water tightness, air tightness, followability, and the like. In particular, in the present embodiment, various materials exemplified above can be used. On the other hand, a non-bleed system is preferable. When a non-bleed sealant is used, it is possible to suppress the occurrence of a bleed phenomenon such as darkening or stickiness.

[Care step]
A predetermined amount of the sealing material 14 is filled in the concave portion 10, for example, a filling amount that does not protrude from the concave portion 10, including joint filling material 16 (see FIG. 7) to be filled later, is finished. Then, the sealing material 14 is cured for a predetermined period. The sealing material 14 shrinks (drys) with drying and solidification. In general, there are many cases in which the volume shrinkage rate occurs about 5 to 10% with the lapse of time, and the above-mentioned predetermined period is a period in which this dust is settled. Specifically, the predetermined period is preferably 3 days or more. Furthermore, as shown in FIG. 12, it is preferable that the reduction (shrinkage amount) is almost eliminated when it exceeds 20 days, but it is preferably 14 days or less, more preferably 5 to 10 days, considering that the construction period is extended. is there.

  As shown in FIG. 6, when the sealing material 14 is cured for a predetermined period, the sealing material 14 contracts to generate fraying. When the sealing material 14 contracts, a fray is generated while avoiding a bonding area with the wall panel 1a that is surface-bonded. Here, the insulating material 12 disposed before filling the sealing material 14 is a material that does not adhere to the sealing material 14, and a non-adhesive region 14 a is formed between the sealing material 14 and the insulating material 12. Therefore, a part of the splinter is generated on the non-adhesive region 14a side, that is, absorbed by the non-adhesive region 14a. Can do.

[Filling step for filling joint material]
As shown in FIG. 7, after the curing step, a dedicated primer is applied on the sealing material 14 and the joint filling material 16 is filled. By filling the joint filling material 16 into the recess 10, the seal material 14 can be filled. The joint filler 16 may be the same material as the sealing material 14, but is preferably a putty material, particularly an elastic putty material. By using the putty material, the joint filling material 16 itself has a small fray, and if it is an elastic putty material, it absorbs the dimensional change at the interface with the finishing material 18 and makes the finishing material 18 difficult to dent. Can do. In particular, in the case of a urethane resin-based elastic putty material, the coating performance of the finishing material 18 is excellent, the volumetric species shrinkage rate is small, and the drying period is short. It is possible to shorten the work period from the filling to the finishing material 18 being painted.

  In the construction method according to the present embodiment, the first layer is formed by the joint filling material 16 after the first layer is formed in the concave portion 10 of the joint 1c by the sealing material 14 suitable for the ALC joint. That is, since the conformity to the ALC joint is established in advance by the first-layer sealing material 14, there are few restrictions on selecting the second-layer material. As a result, a urethane resin-based elastic putty material having a small volume shrinkage (yase) can be selected in the second layer as the joint filler.

  After filling with the joint filler 16, the spatula is carefully pressed and processed so as to be smooth with the surface of the wall panel 1a. Thereafter, the joint filler 16 is cured for about 1 to 2 days.

[Painting step]
Next, the finishing material 18 is applied to the entire surface of the wall panel 1a including the filling surface filled with the joint filling material 16, and is cured and finished for 24 hours or more, for example, at an outside air temperature of 23 ° C. As the finishing material 18, a coating material used for surface coating of ALC panels can be widely used. For example, a multi-layer finish coating material or a thin finish coating material defined in JIS A6909 (architectural finishing coating material). Thick finish coating materials.
By painting the entire surface of the wall panel 1a with the finishing material 18, the joint 1c can be erased, so that a large wall-like flat design can be realized.

  The wall panel structure 5 is formed by executing the above steps. As shown in FIGS. 1 and 7, the wall panel structure 5 has a recess 10 provided along the joint 1 c of the wall panel 1 a. An insulating material 12 is disposed on the bottom surface 10 a of the recess 10, and a sealing material 14 is disposed on the insulating material 12. A joint filling material 16 is disposed on the sealing material 14, and the entire surface of the wall panel 1 a including the filling surface on the joint filling material 16 is covered with the finishing material 18.

  In the wall panel joint filling method according to the present embodiment, the sealing material 14 filled in the concave portion 10 of the joint 1c by the sealing material filling step is cured for a predetermined period of time in the curing step. Even if (decrease) occurs, it stabilizes at the stage of the curing step. In other words, in this construction method in which the filling is filled with the joint filling material 16 and then painted with the finishing material 18, it is possible to suppress the formation of a dent on the painted surface due to the shrinkage of the sealing material 14, and thus the joint 1 c is not easily noticeable. Can be finished to a smooth painted surface.

  Further, in the sealing material filling step, since the insulating material 12 is disposed in the recess 10 before the sealing material 14 is filled, the adhesion between the sealing material 14 and the joint back side of the wall panel 1a can be suppressed, and the joint back of the recess 10 can be suppressed. A non-adhesive region 14a is formed on the side. Accordingly, at least a part of the spout generated in the sealing material 14 is absorbed by the non-adhesive region 14a on the back side of the joint, and the spout generated on the side where the joint filler 16 is filled is reduced. As a result, it becomes effective to make the joint 1 c inconspicuous after the finishing material 18 is coated.

  Even when the sealing material 14 has been damaged due to aging, most of the sealing material is in the non-adhesive region 14a which is in a free state (not restrained by the joint filling material 16 or the finishing material 18). Absorbed. Therefore, it can be finished to a smooth painted surface where the joint 1c is not noticeable for a long time.

  In the construction method according to the present embodiment, the recess 10 has a two-layer structure of the sealing material 14 and the joint filling material 16, thereby realizing a smooth painted surface in which the joints 1 c are hardly noticeable. That is, there are few restrictions regarding the finishing material 18, and an ordinary general ALC-compatible coating material can be used as the finishing material 18 to form a large wall-like flat design over a long period of time.

  Conventionally, there has been a demand for a large-wall-like flat design in which the joint portion is difficult to understand on the outer wall of the ALC, but there are many problems with the conventional correspondence technology, which is difficult in reality. For example, as one corresponding technique, there is a construction method in which mortar is filled on the joint portion, and a net for preventing cracking is applied depending on the construction method, and then the mortar is applied to the entire surface and then finish coating is performed. However, in this conventional construction method, even if an elastic mortar is used, the elastic force is not as high as that of the sealing material, and cracking is likely to occur compared to a sealing joint. Further, when a net for preventing cracking is pasted, a step is likely to occur because the net is partially pasted along the joint portion. In addition, it is difficult to carry out the construction work at the intersections where the joints intersect vertically and horizontally. In addition, the process of applying mortar to the entire surface and applying the coating requires a plastering iron method, which is laborious and costly, and is not a reasonable method. Moreover, there is a concern that the overall finished thickness becomes considerably thick and the air permeability inherently possessed by the ALC material may be lost.

  The construction method according to the present embodiment and the wall panel structure 5 are very advantageous in that the problems of conventional countermeasures can be solved comprehensively and a large wall-like flat design can be formed over a long period of time.

  In general, a working joint and a non-working joint are known as a seal joint. A working joint is a joint having a relatively large joint movement, and a non-working joint means a joint having a relatively small movement. The working joint is often employed in a thicker ALC panel, and the non-working joint is often employed in Hebel Power Board (registered trademark) or the like.

  Here, the working joint is often bonded to two surfaces using a bond breaker at the joint, and the non-working joint is often three-surface bonded with emphasis on waterproofness. However, in this embodiment, the insulating material 12 is arranged without distinction between the working joint and the non-working joint, and the basic purpose and action of the insulating material 12 and the bond breaker conventionally used are completely different. means.

(Second Embodiment)
With reference to FIG. 8 and FIG. 9, the joint method of a wall panel and a wall panel structure according to the second embodiment will be described. The joint filling method of the wall panel according to the present embodiment is the same as the joint filling method of the wall panel according to the first embodiment except for the sealing material filling step and the joint filling material filling step, and according to the present embodiment. The wall panel structure is the same as the wall panel structure according to the first embodiment except for the position where the insulating material is disposed. Hereinafter, overlapping description with the first embodiment will be omitted, and differences will be mainly described.

[Sealing material filling step]
As shown in FIG. 8, in the sealing material filling step, the sealing material 14 </ b> A is filled in the recess 10 without disposing the insulating material 12. Specifically, after applying a dedicated primer in the recess 10, for example, a urethane sealing material 14A is filled. As the sealing material 14A, the same material as that of the first embodiment can be used, but a non-bleed system is desirable.

[Care step]
After filling the sealing material 14A, the sealing material 14A is cured for a predetermined period (for example, 3 to 7 days). For this reason, even if it is a case where a seal | sticker arises in 14A of sealing materials, it is stabilized in a curing step. Since the sealing material 14A is bonded to the wall panel 1a on three surfaces except for the opening side of the concave portion 10, when the sealing material 14A is cured, fraying occurs on the opening side.

[Filling step for filling joint material]
When the drying of the sealing material 14A is confirmed by the curing step, the insulating material 12A is disposed on the sealing material 14A. Then, after applying a dedicated primer, the joint filler 16A is filled (arranged). The arrangement of the insulating material 12A is intended to prevent adhesion between the sealing material 14A and the joint filling material 16A. Therefore, it is necessary to select a member that does not adhere to the sealing material 14A as the insulating material 12A, and it is determined as appropriate according to the material of the sealing material 14A. For example, it may be an insulating tape such as a bond breaker or a backup material.

  After the filling of the joint filling material 16A, the spatula is carefully pressed and processed so as to be smooth with the surface of the wall panel 1a. Thereafter, the joint filler 16A is cured for about 1-2 days. By filling the joint filling material 16 </ b> A into the recess 10, the seal of the sealing material 14 </ b> A can be filled. The joint filler 16A is preferably a urethane resin-based elastic putty material.

[Painting step]
Next, by executing the painting step (see FIG. 8) in the same manner as in the first embodiment, the joint 1c can be erased, and further, the portion of the joint 1c is recessed and does not stand out. The wall panel structure 5A that can form a flat design over a long period of time can be realized.

  That is, the wall panel structure 5A has the recess 10 provided along the joint 1c of the wall panel 1a, the sealing material 14A is disposed on the bottom surface 10a of the recess 10, and the insulating material 12A is provided on the sealing material 14A. Has been placed. Further, a joint filling material 16A is disposed on the insulating material 12A, and the finishing material 18 covers the entire surface of the wall panel 1a including the filling surface on the joint filling material 16A.

  In the joint filling method of the wall panel according to the present embodiment, it is possible to suppress the occurrence of a dent in the painted surface due to the shrinkage of the sealing material 14A. Furthermore, since the sealing material 14A and the joint filling material 16A are insulated by the insulating material 12A, as shown in FIG. 9, a non-adhesive region 14b is formed between the sealing material 14A and the joint filling material 16A. Therefore, even if the seal material 14A is ripened due to secular change, at least a part of the seal is absorbed by the non-adhesive region 14b between the seal material 14A and the insulating material 12A. Therefore, it can be finished to a smooth painted surface where the joint 1c is not noticeable for a long time.

(Third embodiment)
Next, a wall panel joint filling method and a wall panel structure according to a third embodiment will be described with reference to FIG. In the present embodiment, the difference from the first and second embodiments will be mainly described.

  In the wall panel structure 5B according to the third embodiment, the shape of the recess 30 is different from the wall panel structures 5 and 5A according to the first and second embodiments. Specifically, the concave portion 30 of the wall panel structure 5B is divided into an upper portion 30b on the opening side and a lower portion 30c on the bottom side in a cross-sectional view, and the upper portion 30b is wider than the lower portion 30c. A step is formed between the upper part 30b and the lower part 30c. The depth DS1 of the recess 30 is about 10 mm, the depth DS2 of the upper portion 30b is about 3 mm, and the depth DS3 of the lower portion 30c is about 7 mm. Moreover, the width | variety of the upper part 30b of the recessed part 30 is about 10 mm, and the width | variety of the lower part 30c is about 7 mm.

  In the present embodiment, the wall panel structure 5 </ b> B is manufactured by the same method as the wall panel joint filling method according to the second embodiment. That is, the wall panel structure 5B has a concave portion 30 provided along the joint 3c of the wall panel 3a, and the sealing material 14A is disposed in the lower portion 30c of the concave portion 30, and the upper portion 30b and the lower portion on the sealing material 14A are arranged. An insulating material 12A is disposed at the boundary with 30c. Further, a joint filling material 16A is disposed on the insulating material 12A, and the finishing material 18 covers the entire surface of the wall panel 3a including the filling surface on the joint filling material 16A.

  The sealing material 14A is disposed in the lower portion 30c of the recess 30, the joint filling material 16A is disposed in the upper portion 30b, and the insulating material 12A is disposed at the boundary between the upper portion 30b and the lower portion 30c.

  According to the joint filling method and wall panel structure of the wall panel according to the present embodiment, the same effects as, for example, the second embodiment described above can be obtained.

(Fourth embodiment)
Next, the joint filling method and wall panel structure of the wall panel according to the fourth embodiment will be described with reference to FIG. In the present embodiment, the difference from the first to third embodiments will be mainly described.

  In the wall panel structure 5C according to the fourth embodiment, the shape of the recess 40 is different from the wall panel structures 5, 5A, 5B according to the first to third embodiments. Specifically, the recess 40 of the wall panel structure 5C is divided into a bottom-side lower part 40c and an opening-side upper part 40b in a sectional view, and the upper part 40b extends from the lower part 40c in a tapered shape. The depth DT1 of the recess 40 is about 13 mm, the depth DT2 of the upper part 40b is about 6 mm, and the depth DT3 of the lower part 40a is about 7 mm. Moreover, the maximum width of the upper part 40b of the recessed part 40 is about 15 mm, and the width | variety of the lower part 40a is about 7 mm.

  In this embodiment, the wall panel structure 5C is manufactured by the same method as the joint filling method of the wall panel according to the second embodiment. That is, the wall panel structure 5C has a recess 40 provided along the joint 4c of the wall panel 4a, and the sealing material 14A is disposed in the lower portion 40c of the recess 40, and the upper portion 40b and the lower portion on the sealing material 14A are arranged. An insulating material 12A is disposed at the boundary with 40c. Further, the joint filling material 16A is disposed on the insulating material 12A, and the finishing material 18 covers the entire surface of the wall panel 4a including the filling surface on the joint filling material 16A.

  The sealing material 14A is disposed at the lower portion 40a of the recess 40, the joint filling material 16A is disposed at the upper portion 40b, and the insulating material 12A is disposed at the boundary between the lower portion 40a and the upper portion 40b.

  According to the joint filling method and wall panel structure of the wall panel according to the present embodiment, the same effects as, for example, the second embodiment described above can be obtained.

  The embodiment described above shows an example of the wall panel joint filling method and wall panel structure according to the present invention, and is not limited to the wall panel joint filling method and wall panel structure according to the embodiment described above. , Modified or applied to others.

  In the above-described embodiment, the case where the insulating material is arranged before filling the sealing material and the case where the insulating material is arranged before filling the joint filling material are shown. However, the insulating material is filled before filling the sealing material. Further, a sealing material may be disposed before filling the joint filler. Even in this case, the same effects as those of the above-described embodiment can be obtained.

  Furthermore, in the above-described embodiment, the primer treatment is appropriately performed. As a result, it is possible to ensure the stabilization of the surface of the adhesive, and further suppress the deterioration of the insulating material, the sealing material, and the joint filling material (putty material). This is preferable. Primer treatment may be omitted as appropriate.

  In the above-described embodiment, the case where a urethane resin-based elastic putty material is used as the joint filling material is shown. However, examples of the putty material include mortar, urethane resin-based, acrylic resin-based, and the like. It is not limited. The elastic putty material is preferably a urethane resin-based or acrylic resin-based elastic putty material having excellent stretch performance, and the volume shrinkage is preferably 5% or less. Even in this case, the same effects as those of the above-described embodiment can be obtained.

  DESCRIPTION OF SYMBOLS 1a, 3a, 4a ... Wall panel, 1c, 3c, 4c ... Joint, 5, 5A, 5B, 5C ... Wall panel structure 10, 30, 40 ... Recessed part, 10a, 30a, 40a ... Bottom, 12, 12A ... Insulation 14, 14A ... sealing material, 16, 16A ... joint filling material (putty material, elastic putty material), 18 ... finishing material.

Claims (8)

A sealing material filling step of filling a concave portion provided along the joint where the wall panels are butted together with a sealing material;
Curing step for curing the sealing material filled in the recess for a predetermined period;
After the curing step, a joint filling material filling step for filling joint material in the recess after applying the primer;
Applying a finishing material to the filling surface filled with the joint filling material,
In the sealing material filling step, before filling the sealing material, an insulating material capable of preventing adhesion between the sealing material and the wall panel and forming a non-adhesive region between the sealing material and the concave portion is formed. Including placing on the bottom surface of the
The joint filling method for a wall panel, wherein the joint filling material is a putty material having a volumetric shrinkage smaller than that of the sealing material. A sealing material filling step of filling a concave portion provided along the joint where the wall panels are butted together with a sealing material;
Curing step for curing the sealing material filled in the recess for a predetermined period;
After the curing step, a filling material filling step of filling the recessed portion with a filling material;
Applying a finishing material to the filling surface filled with the joint filling material,
The filling material filling step includes an insulating material capable of preventing adhesion between the sealing material and the joint filling material and forming a non-adhesive region between the sealing material and the filling material before filling the joint filling material. Applying the primer after placing the insulating material in the recess,
The joint filling method for a wall panel, wherein the joint filling material is a putty material having a volumetric shrinkage smaller than that of the sealing material.   3. The wall panel joint filling method according to claim 1, wherein a notch along a peripheral edge is formed on a small edge surface of the wall panel, and the recess is formed by abutting the notches.   The wall panel joint filling method according to claim 3, wherein the shape of the recess when viewed in cross-section is a rectangle with one side open. In the wall panel structure formed by abutting a plurality of wall panels,
A recess provided along a joint formed by abutting the wall panels;
An insulating material disposed on the bottom surface of the recess,
A sealing material disposed on the insulating material;
A putty material having a smaller volumetric shrinkage than the sealing material, and a joint filling material disposed on the sealing material via a primer,
A finishing material covering the filling surface on the joint filler;
A wall panel structure comprising: In the wall panel structure formed by abutting a plurality of wall panels,
A recess provided along a joint formed by abutting the wall panels;
A sealing material disposed on the bottom surface of the recess;
An insulating material disposed on the sealing material;
A putty material having a smaller volume shrinkage than the sealing material, and a joint filling material disposed on the insulating material via a primer,
A finishing material covering the filling surface on the joint filler;
A wall panel structure comprising:   7. The wall panel structure according to claim 5, wherein a notch along a peripheral edge is formed on a small edge surface of the wall panel, and the recess is formed by abutting the notches.   The wall panel structure according to claim 7, wherein the shape of the recess when viewed in cross-section is a rectangle with one side open.

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