JPH0657857A - External mortar sprayed heat insulating wall and construction thereof - Google Patents

Abstract

PURPOSE:To easily construct a heat insulating wall ensuring a sufficient strength while having a required space in a wall with less material in a high constructing efficiency. CONSTITUTION:A lath-covered reinforcement net (a) formed by laying a lath 4 on one side surface of a reinforcement net 1 is erected with the lath 4 outside, and a mortar layer 9 formed by spraying mortar from the outside is superposed on the lath 4. A heat insulating layer (b) is superposed on the inside of the reinforcement net 1, and the mesh of the reinforcement net 1 forms and ensures an air space C.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an external mortar spray insulating wall and its construction method.

[0002]

2. Description of the Related Art Generally, it is said that the formation of internal dew condensation on a heat insulating wall can be prevented by providing a ventilation layer in the wall. The ventilation layer has a thickness of about 20 between the heat insulating material and the exterior material.
It is provided as a space of mm and can be ventilated from the foundation drainage part to the eaves ceiling cutoff edge, or from the foundation drainage part to the attic ventilation port via the attic ceiling, so that from the room to the wall The invading water vapor is discharged to the outside.

[0003]

However, if the ventilation layer is provided in the wall, the wall thickness may bulge correspondingly and the strength may be impaired, and it is necessary to reinforce it and the structure becomes complicated. In addition, there is a drawback that the construction material is additionally required as a whole, the construction becomes complicated, and the construction cost becomes high. An object of the present invention is to construct an adiabatic wall, which has a required ventilation space in the wall and secures sufficient strength, easily with a small number of materials and with high construction efficiency.

[0004]

In the external mortar spray insulation wall of the present invention, a lath-tensioned rebar net a formed by stretching a lath 4 on one side surface of the rebar net 1 is established with the lath 4 on the outside. The mortar layer 9 formed by spraying mortar from the outside onto the lath 4 is polymerized, and the heat insulating layer b is polymerized inside the rebar net 1 so that the mesh of the rebar net 1 forms the ventilation space c. Is.

The method for constructing an external mortar sprayed insulation wall of the present invention is to build and stretch the lath-tensioned rebar net a with the lath 4 on the outside, and to mount the lath-tensioned rebar net a on the lath 4 from the outside. To form a mortar layer 9 having a required thickness, a heat insulating layer b is installed inside the reinforcing bar net 1, and a finishing material 12 is put on the inner surface of the heat insulating layer b if necessary.

[0006]

[Function] The lath-tensioned rebar net is located between the mortar layer on the outside of the lath and the heat insulation layer on the inner side of the rebar net, thereby forming the required ventilation space between the vertical and horizontal bars, that is, the mesh. Therefore, this prevents the occurrence of internal dew condensation on the main heat insulating wall as in the conventional heat insulating wall in which the conventional ventilation layer is formed by partitioning. Since sufficient strength can be secured by the lath-reinforced net, the heat insulating wall does not require any special reinforcement due to the formation of the ventilation space. The structure as the heat insulating wall is simple regardless of the formation of the ventilation space, and therefore, the construction is easy and the cost thereof can be relatively low.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments shown in the drawings will be described in detail below.
Reference numeral 1 is a rebar net formed by welding a plurality of vertical bars 2 and horizontal bars 3 at their intersections to form a large number of square meshes each having a side of 100 mm, and 4 is a lath such as a metal lath or a wire lath.

Reference numeral a is a lath-tensioned rebar net formed by tying the laths 4 on one side surface of the rebar net 1 by binding required portions of the laths 4 to each other with fine wire. Installation work may be done at the factory or at the site of use.

In constructing a wall, first, the above-mentioned lath-reinforced steel net a is applied between the main pillars or the main pillars or between the main pillars via the studs, and the corresponding portions are applied to the outer side surfaces of these pillars. The lath 4 is placed outside and then stretched by contacting them and attaching them by a required means such as staples. in this case,
Support fittings 5 with ventilation holes 8 attached to the base 7 on the foundation 6
The lower end of the lath-tensioned rebar net a is mounted and supported.

Next, mortar is sprayed from the outside to the outside of the lath-reinforced steel net a, that is, the lath 4 to form a mortar layer 9 having a required thickness. Further, the heat insulating plate 10 made of polystyrene foam and the glass wool plate 1 are provided on the inner side of the lath-tensioned net a, that is, on the inner side of the net 1.
A heat insulating layer b formed by sequentially polymerizing 1 is placed, and a finishing material 12 is put on the inner surface of the heat insulating layer b, that is, the inner surface of the glass wool plate 11.
As a result, a desired wall in which the mesh of the reinforcing bar net 1 is secured as the ventilation space c is constructed.

In the above, inside the reinforcing bar net 1,
Instead of the heat insulating plate 10, a suitable sheet-like moistureproof layer may be stretched, and mortar may be sprayed onto the moistureproof layer to form a mortar layer having a required thickness. A urethane foam plate may be installed by polymerization.

[0012]

As is apparent from the above description,
The present invention has the following effects. In the heat insulating wall of the present invention, the lath-tensioned rebar net is located between the mortar layer on the outer side of the lath and the heat insulating layer on the inner side of the rebar net, so that the required ventilation space between the vertical and horizontal bars, that is, the mesh. Since it is formed securely, this prevents the occurrence of internal dew condensation.

The strength of the heat insulating wall of the present invention can be sufficiently secured by the lath-tensioned rebar net, and no special reinforcement is required due to the secure formation of the ventilation space. Further, the structure as the heat insulating wall is simple in spite of the formation of the ventilation space, and therefore, the construction is easy and the cost thereof can be relatively low.

According to the construction method of the present invention, a heat insulation wall provided with a ventilation space for preventing the generation of internal dew condensation is formed in the same manner as a conventional heat insulation wall in which a conventional ventilation layer is purposely divided and formed. It can be built easily and economically compared to.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an embodiment of the heat insulating wall of the present invention.

FIG. 2 is a front view of the above-mentioned lath-tensioned rebar net.

[Explanation of symbols]

 1 Reinforcing bar net 2 Vertical bar 3 Horizontal bar 4 Las a Las tensioned rebar net 5 Support metal fittings 6 Foundation 7 Base 8 Vent hole 9 Mortar layer 10 Heat insulation plate 11 Glass wool plate b Heat insulation layer 12 Finishing material c Ventilation space

Claims (2)

[Claims] 1. A lath-tensioned reinforcing net formed by stretching a lath on one side of a reinforcing net is established with the lath on the outside, and a mortar layer formed by spraying mortar onto the lath is polymerized. An external mortar sprayed heat insulating wall, characterized in that a heat insulating layer is polymerized on the inside of the reinforcing bar net, and the mesh of the reinforcing bar net forms and secures a ventilation space. 2. A lath-tensioned rebar net is built and stretched with the lath outside, and a mortar is sprayed from the outside to the lath of the lath-tensioned net to form a mortar layer having a required thickness. A method of constructing an external mortar sprayed insulation wall characterized by installing a heat insulation layer inside the net and, if necessary, placing a finishing material on the inner surface.