JPH0633670B2 - Insulation repair method for wooden walls - Google Patents

Description

Description: TECHNICAL FIELD OF THE INVENTION The present invention relates to a method for repairing outer insulation of a wooden wall, and more particularly, to an insulating material that can be easily and satisfactorily attached to an existing outer wall of a wooden building. The present invention relates to a method for repairing insulation outside a wooden wall based on the wet method.

TECHNICAL BACKGROUND OF THE INVENTION AND PROBLEMS OF THE INVENTION In a wooden building such as a wooden house, when the outer wall has insufficient heat insulating property, particularly when the outer wall of the mortar is cracked or the coating is peeled off, The exterior walls are often renovated. Especially in cold regions, heat insulation repair work is often performed by fixing a heat insulating material to the existing outer wall in order to improve heat insulation.

A so-called mortar dango method has heretofore been widely known as an example of a wet method among various methods for heat insulation repair work. In this mortar dango method, a heat insulating material made of expanded polyethylene or the like is mounted on an existing outer wall with a mortar dango, and then the outer surface of the heat insulating material is painted with a resin mortar or the like to finish. According to such a mortar dango method, there is an advantage that a good appearance can be obtained.

However, with this mortar dango method, if the existing outer wall is greatly damaged, or if the paint surface is peeled off or the outer surface is dirty, the adhesive strength of the mortar dango alone will secure the heat insulating material. There is a big problem that you cannot do it.

In order to solve such a problem, the inventors of the present invention apply a heat insulating material to the outer surface of the existing outer wall via an adhesive, and apply a mesh material to each predetermined position on the outer surface of the heat insulating material. While applying the fixing nails to the studs or pillars and fixing the heat insulating material to the existing outer wall side by nailing, while embedding the mesh material so as to cover almost the entire area of this heat insulating material,
We proposed a method for repairing the exterior insulation of wooden walls by applying a resin mortar layer on the entire outer surface of the insulation.

According to this method for repairing the exterior insulation of wooden walls, the heat insulating material is firmly fixed to the existing outer wall by the fixing nails, and the resin mortar layer is surely fixed to the heat insulating material through the mesh material. , I found the following problems.

(A) When a heat insulating material adhered to the outer surface of an existing outer wall via an adhesive is fixed by driving a fixing nail into the stud or the pillar while applying a mesh material to the surface of the heat insulating material, The position of the pillar is difficult to see from the outside, and it takes time to find it.

(B) When fixing the heat insulating material to the existing outer wall with nails, the ends of the heat insulating material are nailed on the studs or on the pillars, so that the alignment takes time and effort.

(C) A considerable number of nails are required for fixing the heat insulating material to the existing outer wall, and this nailing is troublesome.

(D) Since nails are usually made of metal, rust may occur,
Alternatively, there is a risk that the heat insulation efficiency will be reduced.

An object of the present invention is to solve the above-mentioned problems all at once, and to easily and reliably provide a heat insulating material to an existing outer wall surface, and also to prevent rusting or decrease heat insulating efficiency. It is an object of the present invention to provide a method for repairing heat insulation outside a wooden wall that can be installed without worrying about.

SUMMARY OF THE INVENTION A method for repairing external insulation of a wooden wall according to the present invention is to fix a heat insulating material on an outer surface of an existing outer wall having a base plate (bulk board) and a mortar layer arranged on the outdoor side of the base plate. Well,
At each predetermined position on the outer surface of this heat insulating material, while inserting the alkali resistant glass mesh material, insert the anchor part of the plastic anchor pin so as to penetrate the mortar layer and reach the base plate of the existing outer wall. After the heat insulating material is fixed on the outside of the existing outer wall, the resin mortar layer is applied over the entire outer surface of the heat insulating material while burying the alkali resistant glass mesh material so as to cover almost the entire area of the heat insulating material.

In such a construction method, the heat insulating material is easily and surely fixed to the outer wall side by the plastic anchor pin, and the resin mortar is firmly held through the alkali resistant glass mesh material. There is. Therefore, according to the present invention, the heat insulating material can be quickly and surely attached to the outer wall side, and the heat insulating performance and durability of the obtained heat insulating structure can be greatly improved.

DETAILED DESCRIPTION OF THE INVENTION Hereinafter, the method for constructing a heat insulation outside a wooden wall according to the present invention will be specifically described with reference to the drawings.

First, the heat insulating material 4 is fixed with the adhesive 5 on the outer surface of the existing outer wall 3 in which the mortar layer 2 is provided on the outer surface of the base plate (separate plate) 1.

As the adhesive 5 used for fixing the heat insulating material 4 to the mortar layer 2, a conventionally known mortar dango or a vinyl acetate-based organic adhesive or the like is used, and of these, mortar dango is particularly preferable.

Further, as the heat insulating material 4, a foamed resin plate such as a foamed polystyrene plate is preferably used from the viewpoints of heat insulating properties, water absorption properties and workability. The size of such a foamed resin plate is not particularly limited, but in the present embodiment, the thickness is 25 to 100 mm and the size is about 90 cm × 90 cm (3 scale × 3).
Or about 90 cm x 180 cm (3 shaku x 6 shaku).

Then, a predetermined area of the alkali resistant glass mesh material 6 is applied to each of the predetermined positions of the heat insulating material 4 as described above, and the anchor pin 7 is inserted into the heat insulating material 4 from above the alkali resistant glass mesh material 6. Plug in. The anchor pin 7 is made of plastic, and the anchor portion 7a near the tip of the anchor pin 7 penetrates the mortar layer 2 of the existing outer wall 3 and is inserted to a position reaching the base plate 1. At this time, the anchor portion 7 of the anchor pin 7
If a does not reach the base plate 1 and stops at the mortar layer 2, the mortar layer 2 is generally brittle and a reliable fixing force cannot be obtained, which is not preferable. On the other hand, when the anchor portion 7a of the anchor pin 7 pushes out the base plate 1, the fixing force by the anchor pin 7 decreases, which is not preferable.

The anchor pin 7 used in the present invention is made of plastic, and since plastic generally has a lower thermal conductivity than metal, heat is not transmitted through the anchor pin, and the heat insulation performance is excellent. A structure is obtained.

Further, it is preferable that the plastic anchor pin 7 is inserted so that its head is slightly recessed or flush with the outer surface of the heat insulating material 4.

At this time, a prepared hole is formed in advance so as to penetrate the mortar layer and reach the base plate, and the plastic anchor pin 7 is inserted into this prepared hole to be attached.

Further, the heat insulating material 4 as described above preferably has a notch 8 having a diameter of 50 to 100 mm and a depth of 5 to 20 mm in a portion into which the plastic anchor pin 7 is inserted. When the portion 8 is provided, the protrusions are not formed, so that the resistance to negative pressure generated by wind or the like is improved, and the alkali-resistant glass mesh material 6 applied to the anchor pin 7 is rolled up and the cutout portion 8 is made of resin. By applying mortar, the resin mortar described later can be strongly adhered to the heat insulating material.

In the present invention, the heat insulating material 4 is fixed on the existing outer wall 3 by the adhesive 5 and the anchor pin 7. However, since the adhesive 5 contributes to the fixing of the heat insulating material 4, the anchor pin 7
For example, in the case of a heat insulating material having a length of about 90 cm × 90 cm and a length of 3 × 3, it may be about one. The size of the head of the anchor pin 7 is preferably about 20 to 50 mm in diameter.

The alkali resistant glass mesh material 6 applied to the anchor pin 7 has a resin mortar layer 9 applied thereon.
The self-weight (described later) and an external force are transmitted to the anchor pin 7 so that the resin mortar layer 9 is attached more strongly. The mesh size of such an alkali-resistant glass mesh material 6 is about 5 mm square, and the overall size is 100 to 300.
It is preferable to use one having a size of about mm square.

After fixing the heat insulating material 4 to the existing outer wall 3 side by such a process, the resin mortar 9 is applied on the alkali resistant glass mesh material 6 applied to the anchor pin 7,
The alkali resistant glass mesh material 6 is attached to the heat insulating material 4 side with this resin mortar. Then, a resin mortar layer 9 is applied over the entire outer surface of the heat insulating material 4. further,
When the resin mortar layer 9 is applied, the alkali-resistant glass mesh material 10 is arranged so as to be embedded in the vicinity of the outer surface thereof, and the alkali-resistant glass mesh material is embedded in the vicinity of the surface of the resin mortar layer 9. The alkali resistant glass mesh material 10 is applied so as to cover almost the entire area of the heat insulating material 2.

The resin mortar layer 9 is made by adding acrylic resin to cement and is applied over a thickness of about 2 to 5 mm. The alkali-resistant glass mesh material 10 is made of alkali-resistant glass, like the alkali-resistant glass mesh material 6.

In such an embodiment, the heat insulating material 4 is simply and reliably fixed to the existing outer wall 3 side by the inserting operation of the anchor pin 7. Further, the resin mortar layer 9 is firmly held by the anchor pin 7 using the alkali resistant glass mesh material 6 as a holding medium. 11 in the figure
Is a stud or a pillar.

EFFECTS OF THE INVENTION In such a construction method, the heat insulating material is easily and surely fixed to the outside of the outer wall by the plastic anchor pin, and the resin mortar is firmly held through the alkali resistant glass mesh material. Has become.
That is, in the present invention, the plastic anchor pin penetrates the mortar layer and is inserted into the underlying plate below to lock the outer heat-insulating wall to this underlying plate. Since it is less brittle than the outer wall, the outer heat insulating wall can be stably fixed for a long period of time. Moreover, this base plate is arranged almost entirely on the indoor side of the mortar layer which is the existing outer wall. For example, when nailing a pillar or stud, it is often difficult to specify the position of the pillar or stud from the mortar layer, but in the case of a base plate, almost the entire area of the mortar layer of the wooden structure on the indoor side Since it is arranged at the position, the driving position of the plastic anchor pin can be easily characterized. Therefore, according to the present invention,
The heat insulating material can be quickly and surely bonded to the outer wall side, and the heat insulating performance and durability of the obtained heat insulating structure can be greatly improved.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing a heat insulating structure constructed by a method for repairing insulation outside a wooden wall in an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1 ... Base plate, 2 ... Mortar layer 3 ... Existing outer wall, 4 ... Heat insulating material 6, 10 ... Alkali-resistant glass mesh material 7 ... Plastic anchor pin 9 ... Resin mortar layer

Claims (1)

[Claims] 1. A heat insulating material is fixed on an outer surface of an existing outer wall having a base plate and a mortar layer arranged on the outdoor side of the base plate, and each predetermined position on the outer surface of the heat insulating material. After applying the alkali resistant glass mesh material to each of them, insert the anchor part of the plastic anchor pin so as to penetrate the mortar layer and reach the base plate of the existing outer wall, and fix the heat insulating material to the outside of the existing outer wall. A method for repairing heat insulation outside a wooden wall characterized by applying a resin mortar layer over the entire outer surface of the heat insulating material while burying an alkali resistant glass mesh material so as to cover almost the entire area of the heat insulating material.