JPH05495Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a mortar exterior wall structure useful for forming the exterior walls of houses, etc., particularly cement mortar walls into a stepped roof without peeling at the corners. .

[Conventional technology]

In general, cement mortar walls are constructed by nailing lath boards onto the main pillars, studs, etc., and then placing a waterproof sheet on top of that.
For example, asphalt felt was attached via staples, a lath sheet was partially fixed thereon with clips, etc., and a slurry of a cement mortar composition was successively laminated one to three times on top of it.

[Problem that the invention attempts to solve]

However, with conventional cement mortar walls, only a flat decorative surface (vertical surface) can be formed, and it has been impossible to create a horizontal or stepped appearance. In particular, it is difficult to form a stepped wall surface because the base is a flat surface, and the wall thickness varies widely, resulting in problems such as cracks and peeling.

[Means for solving problems]

In order to eliminate such drawbacks, the present invention provides a waterproof layer by stretching a waterproof sheet over the building frame, and on this waterproof layer, a mortar adhesion consisting of at least two stages of triangular cross-section subsurface and bottom surface is provided. form the panel surface,
At the top end, fixing pieces between the panel surfaces and the stepped roofing base material forming a vertical surface for fixing are sequentially fixed, and an L-shaped reinforcing tool is fixed to the fixing piece of the stepped roofing base material and the bottom surface of the mortar wall. To provide a stepped mortar outer wall structure with a mortar wall that suppresses peeling of corners and occurrence of cracks.

〔Example〕

An embodiment of the stepped mortar outer wall structure according to the present invention will be described in detail below with reference to the drawings. 1 and 2 are a longitudinal sectional view of the above structure and a longitudinal sectional view with the mortar wall removed. In the figure, 1 is the frame, which consists of main pillars, studs, frame edges, etc., and 2 is the base, which is a type of base board such as plywood or sheathing insulation board, which is laid on the outside of the frame 1 through nails 3 without any gaps. It is fixed. 4 is a waterproof layer, which is a waterproof sheet 5, such as asphalt felt, synthetic resin sheet, kraft paper, and metal foil (Al, Fe, Cu,
It consists of one or more types of laminates of one type of Pb), and is mainly waterproof and, if necessary, has insulation (thermal radiation) and sound insulation properties. The waterproof layer 4 is made by laminating sheet-like materials such as asphalt felt from the base to the eaves so that the upper end of the lower waterproof sheet 5 is covered with the lower end of the upper waterproof sheet 5. Reference numeral 6 is composed of a stepped roofing base material 7 which is made of mortar and is laid and fixed from the foundation toward the eaves, and a reinforcing tool 15 which is fixed on the base material 7 as described later. To explain further, the step roofing base material 7 is a colored steel plate,
aluminum plate, stainless steel plate, titanium alloy plate,
One type of ceramic thin plate, synthetic resin plate, etc. is formed as shown in FIGS. 3a and 3b. That is, the stepped roofing base material 7 is made by forming a rectangular thin plate material into a nearly triangular vertical cross section by roll forming, pressing, etc., and forming a panel surface 8 with an inclined base surface 9 and its lower edge bent inward. , and a horizontally formed bottom surface 10. 11 is a vertical fixing piece formed at the upper end of the stepped roofing base material 7; 12 is a vertical plane for fixing, which is a vertical plane part formed between the panel surfaces 8; This serves to fix the stepped roofing base material 7 onto the base 2. Note that the base surface 9 may have a structure in which the lath material 13 is integrally fixed as shown in FIG. 3A, or the locking piece 14 is cut out and bent as shown in FIG. This is to strengthen the adhesion of the mortar wall 21 to the stepped roofing base material 7, which will be described later. Furthermore, a lower end bottom surface 10a is formed at the lower end of the panel surface 8, and comes into contact with a reinforcing tool 15, which will be described later, to more stably fix the stepped roofing base material 7. The reinforcing tool 15 is formed as shown in FIGS. 4a and 4b, and is mainly used to fix the step roofing base material 7 and to protrude the corner of the panel surface 8 by an amount h from the height H of the mortar wall. This is to suppress peeling off, cracking, etc. of 21. That is, in figure a, the vertical plane 16 of the L-shaped cross section is the fixed plane, and the horizontal plane 17 is the fixed plane.
is the mortar adhesion surface, and bent pieces 18a and 18b whose tips are bent vertically alternately, and stopper piece 1
9. The locking piece 20 is formed as shown on an enlarged scale in FIG. In particular, the stopper piece 19 has a dimension that is equal to or somewhat larger than the height H of the panel surface 8 of the stepped roofing base material 7. In addition, the dimensional relationship of the reinforcing tool 15 in figure b is the same as in figure a, but
A lath material 13 is fixed to the tip of the horizontal surface 17 instead of the bent pieces 18a and 18b. 21 is a mortar wall formed in a stepped manner along the mortar base 6 .

Next, a construction example of the stepped mortar outer wall structure according to the present invention will be explained. First, it is assumed that a stepped mortar outer wall as shown in FIGS. 1 and 2 is to be formed. Therefore, as the base layer 2, a 9 mm thick waterproof plywood is laid and fixed on the frame 1 without any gaps, and then as the waterproof layer 4 , a waterproof sheet 5 made of asphalt felt (22 kg/roll) is applied from the eaves to the foundation to prevent the waterproofing from below. The sheet 5 is attached so that the upper end of the sheet 5 is overlapped with the lower end of the upper waterproof sheet 5. Next, a long stainless steel plate (0.3 mm) is formed as shown in FIG. 3b, and a locking piece 14 is attached to the base surface 9 as shown in FIG.
The stepped roofing base material 7 formed as shown in FIG. The mortar base 6 is constructed by fixing the piece 11 with the vertical surface 16 and the lower end bottom surface 10a and the horizontal surface 17 of the piece 11 and the fixing vertical surface 12 through the nails 3, respectively. Next, a mortar wall material is applied onto this mortar base 6 to form a mortar wall 21.

What has been described above is only one embodiment of the stepped mortar outer wall structure according to the present invention, and FIGS.
It is also possible to form tongue pieces 22 on each part of the stepped roofing base material 7 as shown in FIG.

[Effect of idea]

As described above, according to the stepped mortar exterior wall structure according to the present invention, by combining the stepped roofing base material and the reinforcing tool, the mortar adhesion surface as the mortar base is reinforced as a whole, and peeling of the corners of the stepped portion, The cracks are gone. The formation of a stepped mortar base can be easily performed by simply driving nails and assembling the materials without any skill, making it easy to form a stepped mortar wall. Even if dew condensation occurs in the triangular voids of the stepped roofing base material, because of the triangular voids, solar radiation from outside evaporates through the mortar wall and does not corrode the base etc. It has the following characteristics.

[Brief explanation of the drawing]

Figures 1 and 2 are explanatory diagrams showing one embodiment of a stepped mortar wall according to the present invention and an explanatory diagram showing the mortar wall removed, and Figures 3a and b are one embodiment of a stepped roofing base material. A perspective view showing an example; FIGS. 4a and 4b are perspective views showing an example of a reinforcing device; FIG. 5 is a sectional view of FIG. 4a;
FIGS. 6a to 6c are partial explanatory views showing other embodiments of the stepped roofing base material. 1... Frame, 6 ... Mortar base, 7... Step roofing base material, 8... Panel surface, 15... Reinforcement tool.

Claims (1)

[Scope of utility model registration request] A base plate is laid and fixed without any gaps on the outside of the frame such as main pillars, studs, etc. to form a base, and a waterproof sheet is placed on the base above the upper end located below and covered with the lower end of the waterproof sheet placed above this. A waterproof layer is provided from the foundation to the eaves, and at least two
It consists of a panel surface consisting of a base surface that slopes in the same direction and a horizontal bottom surface that serves as the cement mortar adhesion surface, a fixing piece perpendicular to the top edge, a vertical fixing surface provided between the panel surfaces, and a bottom bottom surface formed at the bottom edge. Fixing the tiered roofing base material, fixing the fixing piece of the tiered roofing base material on the vertical surface for fixing, and fixing an L-shaped reinforcing tool in contact with the bottom surface and the lower end bottom surface,
A mortar wall is applied to the tiered roofing base material and the reinforcing tool to approximately the same thickness, and the horizontal surface of the reinforcing tool is large enough to protrude from the bottom surface of the tiered roofing base material, and the tip thereof is in the vertical direction. The stopper pieces are bent alternately on the inside, and the stopper pieces are on the surface side.
A stepped mortar outer wall structure characterized by a claw-like locking piece on the back side.