JPH0633668B2 - Building exterior wall repair method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention provides a new exterior wall of an existing outer wall for repairing an existing outer wall such as a wooden board wall, a steel plate wall, a slate wall, or a mortar wall of a building such as a house or a store. The vertical furring strips for forming the mounting surface of the outer wall are fixed to the structural material of the existing outer wall at appropriate intervals, and the new outer wall lateral siding is mounted on these vertical furring strips to build the new outer wall on the existing outer wall. This is related to the method of repairing the outer wall of the building.

[Conventional technology]

This type of building exterior wall repair method, in addition to Japanese Patent Publication No. 58-17869, JP 57-16864, JP 61-24751,
It is already known from the publications 61-24752, 61-24753 and 52-55225. This exterior wall repair method is
As shown in FIG. 5, vertical furring edges a for forming a mounting surface of the new outer wall on the outer side of the existing outer wall are provided at appropriate intervals on the structural material b of the existing outer wall (which is a pillar, a stud, a furring strip, etc.). Then, the liner (square member) e is fixed to the base c or the attachment base d, the starter f of the laterally attached siding for new outer wall is fixed to the liner e, and the first laterally attached siding g is attached to the starter f. It is stopped and attached to the outer surface of the vertical furring strip a, and the same laterally-adhered siding as described above is sequentially locked to the laterally-adhered siding below it to attach it to the outer surface of the vertical furring strip a. is there.

[Problems to be solved by the invention]

In the above-mentioned outer wall repairing method, the existing outer wall is left and the new outer wall is constructed on top of it, so the repair is speedy, it is possible to live during the repair, and it is not possible to directly attach the horizontal siding to the existing outer wall. However, since a vertical furring strip is provided on the outside of the existing outer wall and the laterally-adhered siding is attached thereto, there are advantages such that the laterally-adhered siding can be securely attached.

That is, in the above-mentioned conventional method, the liner e is fixed to the base c or the mounting base d, and the starter f is attached to this, so that the base is covered with mortar and other outer wall finishing materials, and the base is covered. It was difficult to attach the liner e parallel to the base to an existing outer wall in which the outer wall finishing material portion has local unevenness, and therefore it was difficult to apply to the existing outer wall.

In addition, when the rainwater entered from the lower end of the new outer wall, the lower end of the vertical furring a and the liner e were easily corroded.

In view of the above-mentioned conventional drawbacks, the present invention can be easily applied to an existing outer wall whose base is covered with mortar or other outer wall finishing material, and can prevent corrosion such as vertical furring due to rainwater, and This is a proposal for a method of repairing the exterior wall of a building that will give a beautiful finish even if there is some variation in the length of the vertical furring strip.

[Means for solving problems]

According to the method for repairing an outer wall of a building according to the present invention, vertical furring strips for forming a mounting surface of a new outer wall on the outer side of an existing outer wall are fixed to a structural material of the existing outer wall at appropriate intervals, and a rising plate portion and its lower end are provided. An inclined plate part that is bent outwards and is dimensioned so as to project more outward than the lower end of the laterally attached siding for a new outer wall, a vertical plate part that is bent downward from its front end, and an inward part from its lower end. A drainer composed of a horizontal plate portion that is bent in one direction and has an end portion that substantially abuts or abuts the outer side surface of the foundation, and the inclined plate portion, the vertical plate portion, and the horizontal plate portion. With hiding so as to cover the lower end of the vertical furring strip, the rising plate part is fixedly attached to the lower end part of the outer surface of the vertical furring strip, and then a starter configured separately from the drainer is installed. Place a weight on the outer surface of the rising plate of the drainer. Fixed to the lower end of the outer surface of the vertical furring strip, and the laterally attached siding is positioned on the starter while the outer surface of the lower end is located on the vertical furring strip side of the vertical plate portion of the drainer. It is stopped and attached to the outer surface of the vertical furring strip, and the same laterally attached siding as the above is sequentially locked upward and attached to the outer surface of the vertical furring strip by being locked to the laterally attached siding below it. There is.

[Action]

According to the above configuration, a new outer wall including a large number of laterally attached sidings, drainers, etc. is constructed while the existing outer wall remains. Further, since the lower end of the vertical furring strip is covered and hidden by the draining inclined plate section, the vertical plate section and the horizontal plate section, the vertical furring strip is prevented from being corroded by rainwater.

〔Example〕

 Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an embodiment of the present invention. In the figure, 1 is a foundation, 2 is a base, 3 is a structural material (column or stud) of an existing outer wall, 4
Is a wood sliding base, 5 is an outer wall finishing material such as mortar, 6 is a drainer for the existing outer wall, and 7 is a rain guard that supports the drainer 6.

The existing outer wall with the above structure will be repaired as follows.

First, the vertical furring strips 8 for forming the attachment surface of the new outer wall are fixed to the structural material 3 with concrete nails (not shown) or the like at appropriate intervals on the outer side of the existing outer wall. In this case, even if there are local irregularities in the portion of the outer wall finishing material 5 that covers the base 2, the vertical furring strips 8 have a vertically long shape and are arranged at appropriate intervals. It is easy to attach the vertical furring strips 8 in a state of avoiding the above, and the outer surface of each vertical furring strip 8 can be made flush.

Next, a metal drainer 9 made of a coated steel plate, an aluminum alloy, a stainless steel plate or the like is fixed to the lower end of the outer surface of the vertical furring strip 8 with a fastener 10 such as a nail or a screw. Explaining the structure of the drainer 9 more specifically, the drainer 9 has a rising plate portion 9a whose upper end is folded back outward, and an outward bending from the lower end thereof, which is formed from the lower end of a new outer wall lateral siding (described later). An inclined plate portion 9b dimensioned so as to project further outward, and a vertical plate portion 9c bent downward from its front end,
A horizontal plate 9d bent inward from its lower end, a bent plate 9e narrower in vertical width than the vertical plate 9c bent upward from its rear end, and a narrow horizontal plate bent backward from its upper end. It is composed of a plate portion 9f. Then, the rising plate portion 9a is fixed to the lower end portion of the outer surface of the vertical furring strip 8 with the fastener 10, and in this embodiment, the narrow horizontal plate portion 9f.
Is fixed to the lower surface of the rain guard 7 with fasteners 11 such as nails and screws.

Thereafter, a starter 12 of a laterally-adhered siding for a new outer wall, which will be described later, is piled up on the rising plate portion 9a of the drainer 9, and a fastener 13 such as a nail or a screw is attached to the lower end portion of the outer surface of the vertical furring strip 8.
Fix with. The starter 12 is formed by bending a coated steel plate or the like, and has an engaging portion similar to the engaging portion on the upper end side of the laterally attached siding described later.

Then, the first-stage laterally attached siding 14 is locked to the starter 12 to the outer surface of the vertical furring strip 8, the lower end of which is bent downward from the front end of the inclined plate portion 9b of the drainer 9. While being positioned on the vertical furring strip 8 side with respect to the plate portion 9c, the fasteners 15 such as nails and screws are attached. Then, the same laterally attached siding 14 as described above is sequentially locked upward and attached to the laterally attached siding 14 below and attached to the outer surface of the vertical furring strip 8 with the similar fasteners 15, whereby the existing outer wall is removed. A new outer wall is constructed on the outside while leaving it.

16 in the figure is a caulking material. The caulking material 16 is usually applied last, but it goes without saying that the caulking material 16 may be applied at any time as long as the number of drainers 9 is fixed.

According to the above-mentioned embodiment, even if there is some unevenness in the portion of the outer wall finishing material 5 which covers the base 2, the vertical furring strip 8 is avoided while avoiding the uneven portion.
By arranging, the outer surface of each vertical furring strip 8 can be made flush. Since the drainer 9 and the starter 12 are fixed to the flush vertical furring strip 8, it is easy to attach the drainer 9 and the starter 12 in parallel with the base 2.

Then, the rising plate portion 9a of the drainer 9 is attached to the lower end portion of the outer surface of the vertical furring strip 8 so that the lower end portion of the vertical furring strip 8 is covered with the inclined plate portion 9b, the vertical plate portion 9c and the horizontal plate portion 9d. Since it is concealed, even if the lower end of the vertical furring strip 8 has some irregularities due to variations in the length, it is not visible from the outside and a beautiful finished state is obtained.

Further, since the lower end portion of the vertical furring strip 8 is covered and concealed by the drainer 9, even if rainwater is blown up from below, rainwater is prevented from entering the vertical furring strip 8.
It is possible to prevent corrosion of the lower end of the.

In addition, the corners of the starter 12 are attached to the angles between the rising plate portion 9a and the inclined plate portion 9b of the drainer 9 to start the starter 12
Can be positioned and held horizontally, the starter 12
Is easy to install.

FIG. 2 shows another embodiment of the present invention. In this embodiment, the existing outer wall does not have the drainer 6 and the rain guard 7 described above, and the foundation 1 is made of concrete similar to the vertical furring strip 8 (this may be a long piece or a short piece) 17 made of concrete. Secure with nails,
The narrow bent plate portion 9f of the drainer 9 is nailed to the lower surface of the square member 17,
It is characterized in that it is fixed with fasteners 11 such as screws. Vertical furring 8
Either the fixing of 1 or the fixing of the square member 17 may be performed first.
Since the other steps are the same as those in the previous embodiment, the same components are designated by the same reference numerals and the description thereof will be omitted.

FIG. 3 shows another embodiment of the present invention. This embodiment is the second
Targeting an existing outer wall similar to the existing outer wall in the illustrated embodiment, the drainer 9 has a rising plate portion 9a whose upper end is folded back outward and an inclined plate portion which is bent outward from its lower end.
9b, a vertical plate portion 9c bent downward from its front end, and a horizontal plate portion 9d bent inward from its lower end and having its rear end folded back upward, and the rising plate portion 9a is formed into a vertical furring strip. Fix it to the lower end of the outer surface of 8 with fasteners 10 such as nails and screws.
Further, the rear end side of the horizontal plate portion 9d is nailed to the lower surface of the vertical furring strip 8 or to the lower surface of a square bar 17 arranged between the vertical furring strips 8 and fixed to the vertical furring strip 8 or the base 2 with concrete nails or the like. The feature is that it is fixed with fasteners 11, such as screws. Since the other steps are the same as those in the previous embodiments, the same reference numerals are given to the same constituent members and the description thereof will be omitted. The timber 17 may have a length equal to the distance between the vertical furring strips 8, or may be a piece shorter than this. Also, the timber 17 is the horizontal plate portion 9d of the drainer 9.
Since it is provided for facilitating the work of fixing the rear end side, it is also possible to omit the square bar 17 for implementation.

FIG. 4 shows another embodiment of the present invention. In this embodiment, the drainer 9 includes a rising plate portion 9a whose upper end is folded back outward, an inclined plate portion 9b which is bent outward from its lower end, and a vertical plate portion 9c which is bent downward from its front end. Bending inward from the lower end, and the horizontal plate portion 9d dimensioned to a length at which the end portion substantially abuts or abuts the outer surface of the foundation, and the vertical plate portion 9c bent upward from the rear end. It is composed of a bent plate portion 9e having a narrow vertical width and an inward rising surface that substantially abuts or abuts the outer surface of the foundation 1, and only the upper end side of the drainer 9 is fixed, Moreover, the bent plate portion 9e is brought into contact with the outer surface of the foundation.

In the example shown in FIG. 1 to FIG.
17 is fixed to the narrow horizontal plate portion 9f, or the end of the horizontal plate portion 9d is brought into contact with the lower end of the outer wall finishing material 5 so as to cover the lower portion of the vertical furring strip 8 in a watertight manner. There is, but the fourth
In this example shown in the figure, the lower part of the vertical furring strip 8 is covered in a watertight manner simply by bringing the bent plate portion 9e into contact with the outer surface of the foundation. It is possible to obtain the same effect as that of the structure shown in FIG. The other steps are the same as those in the embodiment shown in FIG.

In each of the above embodiments, the laterally attached siding 14 is
Although it is composed of a surface plate 14a made of a coated steel plate and a lining material 14b made of a heat insulating material, the lining material 14b may be omitted. Further, in each of the above embodiments, the laterally attached siding 14 is provided with an upward engaging portion on the lower end side and an downward engaging portion on the upper end side, and is of a type in which it is successively pulled up from the bottom to the top. On the contrary, a laterally-attached siding of a type in which a downward engaging portion is provided on the lower end side and an upward engaging portion is provided on the upper end side to lock the sequentially mounted state Good. Although not shown, in each of the above embodiments, a waterproof sheet may be attached to the existing outer wall (outer surface of the outer wall finishing material 5) or to the outer surface of the vertical furring strip 8 to enhance the waterproof performance. Further, in order to attach the drainer 9 to the vertical furring strip 8, in the embodiment shown in FIGS. 1 to 4,
By forming a ventilation hole in the horizontal plate portion 9d of the drainer 9 and communicating with a gap between the vertical furring strips 8, a passage for air circulation can be formed between the new outer wall and the existing outer wall.

〔The invention's effect〕

Since the present invention has the above-mentioned configuration, the following effects can be obtained.

Since the drainer and the starter configured separately from this drainer are fixed to the vertical furring, the base is covered with the outer wall finishing material, and the outer wall finishing material portion covering the base has local unevenness. Even if the existing outer wall is to be refurbished, by arranging the vertical furring strips avoiding these irregularities, the outer surface of each vertical furring strip is made flush and the drainer and starter are parallel to the base. It can be attached and can be easily and accurately constructed without waviness in the longitudinal siding.

The rising plate part is bent outward from the lower end, and the inclined plate part is dimensioned to project further outward than the projecting end of the lower end of the new outer wall lateral siding, and the downward bending from the front end thereof. A drainer comprising a horizontal plate bent inward from the lower end of the vertical plate, its inclined plate part,
Since the vertical plate portion and the horizontal plate portion are concealed so as to cover the lower portion of the vertical furring strip in a watertight manner, and the rising plate portion is fixedly attached to the lower end portion of the outer surface of the vertical furring strip, the outer wall is used. Rainwater flowing down from the horizontal siding can be made to flow down to a place far away from the foundation by this inclined plate portion, effectively protecting the foundation from deterioration due to rainwater, and at the same time, the lower end portion of the vertical furring strip is It can be covered almost completely by the horizontal plate part of the drainer, and even if rainwater is blown up by strong wind, it can well prevent it from inadvertently entering the inside of the drainer, and it is often seen in the conventional structure. Corrosion of the lower end of the vertical furring strip can be prevented.

Since a drainer is attached to the lower end of the outer surface of the vertical furring strip, even if there is some unevenness in the lower furnishing position of the vertical furring strip due to variations in the length of the vertical furring strip, this part will be hidden by the drainer. , You can get a beautiful finish. Moreover, since this drainer has a structure in which it has an inclined plate portion, a vertical plate portion, and a horizontal plate portion and projects largely outward, this makes it possible to use, for example, rain gutters, caulks, and various pipes. It can be covered up, resulting in a more beautiful finish.

By adopting a drainer configured separately from the starter, each can have a significantly simpler shape structure, and therefore, at the corners such as the protruding corners, a portion of the drainer or starter is cut and bent at a right angle. It is easy to process, and the corners can be set easily and reliably.

Although no liner is provided, the drainer serves as a guide for positioning the starter horizontally, so it is easy to install the starter.

[Brief description of drawings]

FIG. 1 is a vertical side view showing an embodiment of the present invention. FIG. 2 and FIG. 3 are vertical side views showing other embodiments of the present invention. FIG. 4 is a vertical cross-sectional side view of essential parts showing another embodiment of the present invention. FIG. 5 is a vertical sectional side view showing a conventional example. 8 ... Vertical furring, 9 ... Drainer, 12 ... Starter, 14 ... Horizontal siding.

Claims (1)

[Claims] 1. A vertical furring strip for forming a mounting surface of a new outer wall on the outer side of an existing outer wall is fixed to a structural material of the existing outer wall at appropriate intervals, and is bent outward from a rising plate portion and its lower end, Also, an inclined plate portion dimensioned so as to project further outward than the lower end of the laterally attached siding for a new outer wall,
It is composed of a vertical plate portion bent downward from its front end, and a horizontal plate portion bent inwardly from its lower end and dimensioned to a length such that the end portion substantially abuts or abuts the outer surface of the foundation. The drainer is covered with the inclined plate portion, the vertical plate portion and the horizontal plate portion so as to cover the lower end portion of the vertical furring strip, and the rising plate portion is fixed to the lower end portion of the outer side surface of the vertical furring strip. Installation, after that, the starter configured separately from the drainer is fixed to the lower end portion of the outer surface of the vertical furring in a state of being stacked on the outer surface of the rising plate portion of the drainer, and the laterally attached siding is While setting the outer surface of the lower end portion to be closer to the vertical furring strip side than the vertical plate portion of the drainer, the lower end portion is locked to the starter and attached to the outer lateral surface of the vertical furring strip, and sequentially upwards in the same horizontal direction as above. Paste siding into horizontal siding below it Sealed by the outer wall repair method of a building, characterized in that go mounted on the outside surface of the vertical furring strips.