JPH0458540B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to the structure of a base when spray painting a stucco-like thick material on a building, and particularly to a method for applying it to a projecting corner.

[Prior art and its problems] In wooden buildings, instead of the conventional method of using lumber, waterproof paper, and lath netting, base plates with an adhesive layer with mortar on the surface are used to attach nails to structural members such as columns. The so-called non-lath construction method has begun to be used, in which the joints are fixed with a trowel or the like, and the joints are filled with a joint material to make them waterproof, and then mortar is applied over the top using a trowel or spray. In this construction method, the base plate is fixed to the projecting corner so that it does not protrude from the side surface of the structural material such as a column, and the projecting corner is filled with joint material. Therefore, when filling corners with joint material, it is common to level the corners so that they are rounded.

When painting thick stucco-like materials by spraying, the surface is sprayed unevenly so that it has large and small protrusions, and then it is generally applied with a trowel or a roll after checking the dryness and drainage of the material. A so-called head cut process is performed to flatten the head of the protrusion. In this case, the unevenness of the base will cause unevenness in the pattern after the head is cut, so the base must be adequately adjusted. After cutting, it becomes very round and must be pressed into a round shape even during head cutting. If you spray-paint thick stucco-like materials on a base whose corners have been treated in this way using the non-lath construction method, it is not possible to use fixed wood at the corners, so the finished product will be rounded, which is not pleasing to the eye and poses a problem during construction. ing. In order to improve this situation, some attempts have been made to fill the corners with joint material and then apply another layer of joint material several times to make the corners appear as much as possible, but with multiple coats, the one applied first There are problems such as a long construction period as it can only be done after drying and solidification, requiring the skills of an experienced worker, and high material costs.Therefore, improvements to the construction method for projecting corners are desired. There is.

[Means for Solving the Problems] The present invention has been made in view of the above points, and is intended to improve the structural defects of the protruding corners in the non-lath construction method. That is, the present invention relates to a construction method for a protruding corner, in which a base plate is fixed to a structural member such as a column, one base plate is used as an inclined surface where the side surface of the base plate cuts into the back surface. A base plate that is edged to have a base plate is fixed so that the edge of the base plate protrudes outward from the structural member, while an edge of another base plate is fixed so that it does not protrude outward from the structural member, This is characterized in that the groove formed between both base plates is filled with a joint material.

A detailed explanation will be given below with reference to the drawings.

FIGS. 1, 2, and 3 are cross-sectional views of a protruding corner showing an embodiment of the present invention. In the figure, 1 and 1' are base plates, 1 is edged so that the side surface has an inclined surface 5 that cuts into the back surface, and 1' is edged so that the side surface has an inclined surface 5' that cuts into the surface. The base plate 1 is fixed with nails 2 so that the end thereof protrudes from the side surface of the column 3 so as to match the height of the surface of the other base plate 1'. The groove formed between the base plates 1 and 1' is filled with a joint material 4. Figure 1 shows base plate 1
2 is an example in which the sloped surface 5 is formed by hemming the corners of the back side. FIG. 2 shows an example in which the sloped surface 5 is formed by hemming deep into the back surface. This is an example in which the slope is an inclined surface 5. The base boards 1 and 1' are made of wood boards such as plywood, particle board, fiber board, wood wool cement board, wood chip cement board, inorganic board such as asbestos pulp cement board, lightweight cement board, silica board, slag board, etc. The substrate is a composite board of a plate and an inorganic board,
If necessary, a waterproof layer mainly composed of synthetic resin, rubber, bitumen, etc. is laminated with a hydraulic composition made by appropriately mixing hydraulic cement, synthetic resin, rubber, or aggregate. be. Hydraulic cements include Portland cement, blast furnace cement, silica cement, fly ash cement, high sulfate cement, and slag cement compositions, and aggregates include inorganic lightweight aggregates such as vermiculite and perlite, and sand. , inorganic aggregates such as crushed stone, and organic aggregates such as foamed plastic particles and rubber powder.

The joint material 4 is a sealing material, a caulking material, or a cement-based joint material, and is filled to prevent rainwater from penetrating into the groove. In other embodiments, the side surfaces of the base plate 1' may not be bordered.
Another method that is often used when the side surface of the base plate 1' is not edged is to leave a space of several mm or less between the edge of the base plate 1' and the base plate 1. ′ may be fixed.

FIG. 4 is a cross-sectional view of the projecting corner of an example in which mortar finishing material made of white cement, aggregate, inorganic powder, and other additives is spray-coated in a stucco-like manner as a thick layer on the base obtained by the present invention. It is. 6 in the diagram
is a thick stucco-like material that has been subjected to head cut treatment. Because the base has corners, the corners of the stucco-like thick material are clearly visible even after spray painting. FIG. 5 is a sectional view of a protruding corner of a comparative example in which mortar finishing material is spray-coated in a stucco-like manner on a base having a conventional protruding corner structure. Both of the base plates 1 and 1' are edged so that their side surfaces have sloped surfaces that cut into the surface, and when such base plates are spray-painted, the finished surfaces are largely rounded and have no corners, resulting in a poor appearance.

[Operations and Effects] The method for constructing a projecting corner according to the present invention has a number of features. In other words, this construction method for projecting corners not only does not require lath, waterproof paper, or lath netting, but also has excellent workability and can prevent cracks in the mortar. At the same time, the construction method of the present invention has the advantages of non-lath construction methods such as being excellent in waterproofness, robustness, and durability, and at the same time, the construction method of the present invention overcomes the disadvantages of the protruding corners of conventional non-lath construction methods that are seen when spray painting thick stucco-like materials. This is an improved version of . Since the protruding corner obtained by the present invention has a corner at the corner, even if a stucco-like thick finish is applied, the corner will not be finished rounded and the corner will be clearly visible, making it suitable for construction. Things look better. In addition, the non-lath construction method has the advantage of being extremely easy to construct, and at the same time, there is no need for multiple coats of joint material to create corners, and there is no need for extra labor, construction time, materials, or skilled workers. This is extremely advantageous in practical terms.

[Brief explanation of the drawing]

Figures 1, 2, and 3 are cross-sectional views of a protruding corner showing an embodiment of the present invention, and Figure 4 is a stucco-like mortar finish applied to the protruding corner obtained by the method of the present invention. FIG. 5 is a cross-sectional view of a comparative example in which mortar finishing material was spray-painted in a stucco-like manner on the protruding corner portions having a conventional structure. 1, 1'... Base board, 2... Nail, 3... Pillar, 4
...Glut material, 5...Slope surface, 6...Headcut-treated stucco-like thick material.

Claims (1)

[Claims] 1. In the construction method for protruding corners in which a base plate is fixed to a structural material such as a column, one base plate is used as one base plate, and the base plate is edged so that the side surface of the base plate has an inclined surface that cuts into the back surface. A groove formed between both base plates, where the end of the base plate is fixed so that it protrudes outward from the structural material, while the end of the other base plate is fixed so that it does not protrude outward from the structural member. A construction method for protruding corners characterized by filling the joint with joint material.