JP2003020738A - Furring strip for ventilation and its manufacturing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a furring strip for ventilation capable of easily forming vent grooves having a sufficient notch area while holding mechanical strength, at the same time, having high degree of accuracy of thickness and having difficulty in making a warp or a twist. SOLUTION: The furring strip 10 for ventilation as a substrate material set along the substrate surface by a wall face plate such as a vent waterproofing sheet 11 or the like when a external wall finish material 12 is mounted in a state to hold a venting space 13 between the substrate surface and the external wall finish material 12 is constituted of a structural plywood 20, and a plurality of vent grooves 17 having a U-shaped section notched by crossing over both sides 16 are provided to the rear side thereof at regular intervals. A first constitutive plate 18 of the structural plywood 20 for the fibrous direction to become the direction crossing with the extended direction of the vent grooves 17 is shown on the bottom of the vent grooves 17.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation furring strip which serves as a base material when an outer wall finishing material is attached while maintaining a ventilation space between the base surface and the outer wall finishing material.

[0002]

2. Description of the Related Art A furring strip is a member that serves as a base material when a panel-shaped outer wall finishing material such as a siding material is attached to the outer wall surface of a building. The furring is made of solid material, and has a width of 45 to 90, for example.
It is a strip-shaped member having a rectangular cross section with a size of about 10 mm and a thickness of about 10 to 40 mm. The furring strip is fixed between the outer wall structural materials such as columns and studs, and along the base surface of the wall surface material such as waterproof sheet, ventilation sheet, and heat insulating material, which is attached to the outside of these, while closely placing the back surface. A plurality of them are fixed in the vertical or horizontal direction with nails or the like, and the outer wall finish is attached to the surface of the fixed furring strip to form an outer wall. Further, due to the furring strip being interposed, a ventilation space is held between the wall surface material and the outer wall finishing material in the section sandwiched by the furring strips.

On the other hand, a ventilation furring strip that allows ventilation between the compartments surrounded by the furring strip is disclosed in, for example, Japanese Patent Publication No. 2844.
No. 457, and according to this ventilation furring strip 50, as shown in FIG.
A plurality of ventilation grooves 52 are cut out in an arcuate cross section across one side. As shown in FIG. 11, such a ventilation furring strip 50 is attached along a base surface by a wall surface material 53 that constitutes an outer wall of a building, and the wall surface material 5 is attached.
By interposing between 3 and the outer wall finish material 54, ventilation between the compartments 55 sandwiched by the ventilation furring strip 50 can be performed via the ventilation groove 52.

However, the conventional ventilation furring strip 50 described above is used.
Is formed of a solid material, the ventilation groove 52 is formed in order to prevent the mechanical strength of the ventilation furring strip 50 from being deteriorated due to a cross-section loss due to the formation of the ventilation groove 52.
When the cross-sectional shape of the ventilation groove is limited to a specific shape, such as when it is necessary to make it an arc shape, and it is not possible to secure a sufficient notch area, and it takes time to process the ventilation groove. There is. In addition, since the ventilation furring strip made of solid wood has poor thickness accuracy and is prone to warping and twisting, it tends to cause unevenness when attaching the outer wall finishing material, which makes it unattractive to look at. The holding power of the material is likely to decrease.

According to the present invention, it is possible to easily form the ventilation groove having a sufficient notch area while maintaining the mechanical strength, the thickness accuracy is good, and the ventilation furring and the twisting edge are less likely to occur. It is an object of the present invention to provide a method for manufacturing the ventilation furring strip.

[0006]

The present invention provides a waterproof sheet,
A base material for arranging along the base surface of a wall surface material such as a ventilation sheet, a heat insulating material, etc. when attaching the outer wall finish material in a state where a ventilation space is maintained between the base surface and the outer wall finish material. Which is made of structural plywood, and has a plurality of ventilation grooves having a U-shaped cross section cut across both side surfaces on at least one of the front surface or the back surface. The above object is achieved by providing a ventilation furring strip characterized by being provided (the invention according to claim 1).

According to the ventilation furring strip of the present invention, the structural plate of the structural plywood having the fiber direction intersecting the extending direction of the ventilation groove appears on the bottom surface of the ventilation groove. It is preferable (the invention according to claim 2).

Further, according to the present invention, a plurality of cutting grooves having a U-shaped cross section are formed in parallel with each other on at least one of the front surface and the back surface of the structural plywood so as to cross the entire length in the width direction thereof. After that, by cutting the structural plywood into a plurality of along cutting lines that are parallel to each other in a direction perpendicular to the cutting groove, the cutting groove becomes the ventilation groove. The above object is achieved by providing a method for producing a ventilation furring strip, which comprises:

According to the method for manufacturing a ventilation furring strip of the present invention,
After forming a plurality of U-shaped cut grooves in parallel, 2
It is preferable that the structural plywood described above is subjected to scarf processing, joined and integrated in the longitudinal direction with an adhesive, and then cut into a plurality of pieces (the invention according to claim 4).

Further, according to the present invention, a plurality of strip-shaped plates having a rectangular cross section obtained by cutting another structural plywood are arranged in parallel on at least one of the front surface and the back surface of the structural plywood. Any of the above in which the gap between the strip-shaped plates becomes the ventilation groove by cutting the structural plywood into a plurality of pieces along a cutting line parallel to each other, which is joined and integrated, and then intersects the strip-shaped plates vertically. The above object is achieved by providing a method for manufacturing a ventilation furring strip, which is characterized by manufacturing the ventilation furring strip (claim 5).

[0011]

Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. As shown in FIGS. 1 and 2, for example, the ventilation furring strip 10 of the present embodiment extends along a base surface of a ventilation waterproof sheet 11 as a wall surface material that is attached to the outside of an outer wall structural material such as a pillar or a stud. Then, a plurality of them are arranged so as to be parallel to each other in the horizontal direction, and the back surface thereof is in close contact with the ventilation waterproof sheet 11 and is fixed by a fixing nail or the like. Further, a siding 12 as an outer wall finishing material is attached to the surface of the fixed ventilation furring strip 10. Due to the interposition of the ventilation furring strip 10, the ventilation space 13 is provided in each section sandwiched between the pair of upper and lower ventilation furring ribs 10 between the base surface of the ventilation waterproof sheet 11 and the outer wall finishing material of the siding 12. Is retained. In addition, ventilation is achieved between the vertically adjacent ventilation spaces 13 via the ventilation groove 17 formed in the ventilation furring strip 10 by notching. In addition, according to this embodiment, the heat insulating material 14 is provided inside the wall of the ventilation waterproof sheet 11 between the outer wall structural materials.

The ventilation furring strip 10 of this embodiment is
As shown in FIGS. 3 (a) and 3 (b), it is made of structural plywood 20 and has, for example, a width of about 45 to 90 mm and a thickness of 10 to 40.
A strip-shaped member having a rectangular cross-sectional shape with a size of about mm, and the back surface 15 of the ventilation furring strip 10 serving as a contact surface to the ventilation waterproof sheet 11 has a pair of the ventilation furring strips 10 A plurality of ventilation grooves 17 having a U-shaped cross section, which are cut out across the side surface 16, are provided at intervals. That is, the ventilation groove 17 has a rectangular cross-sectional shape with a width of, for example, about 30 to 50 mm, preferably 9 to 12 mm, and a depth of about 6 to 15 mm, preferably 9 to 12 mm. While extending in the direction perpendicular to X,
Plural pieces are provided so as to be parallel to each other at equal intervals of, for example, about 110 to 160 mm, preferably 110 to 120 mm in the longitudinal direction X.

Further, according to this embodiment, the ventilation furring strip 1 is provided.
As shown in FIG. 4, the structural plywood 20 constituting 0 has three first component plates 18 in which the fiber direction is the longitudinal direction X of the ventilation furring strip 10, and the fiber direction is the ventilation furring strip 10 The two second component plates 19 which are perpendicular to the longitudinal direction X of are laminated alternately, and the fiber direction is perpendicular to the extending direction of the ventilation groove 17 on the bottom surface of the ventilation groove 17. The first component plate 18 in the intersecting direction appears. Since the bottom surface of the ventilation groove 17 is the first component plate 18, the mechanical strength at the inner corner portion of the ventilation groove 17 having a U-shaped cross section is sufficiently maintained, and is easily generated from the corner portion. Ventilation furring 1
It is possible to effectively avoid 0 breakage. In addition,
According to this embodiment, the first component plate 18 and the second component plate 19
For example, a melamine resin adhesive, a phenol resin adhesive, or the like is used as an adhesive for laminating and, and by this, the component boards 18 and 19 are firmly joined and integrated, and the structural plywood 20 is made of a solid material. It makes it possible to handle as a single member having a considerable strength in comparison.

Then, according to the present embodiment, FIG.
The plurality of ventilation furring strips 10 can be easily formed by the following manufacturing steps shown in (e) to (e). Ie the first
One surface of the structural plate 18 and the second structural plate 19 is laminated to a fixed structural plywood 20 (see (a)) obtained by joining and integrating the structural plate 18 and the second structural plate 19 with an adhesive. Using a cutting machine such as a router machine, a plurality of cutting grooves 21 having a U-shaped cross section are formed in parallel with each other across the entire length of the structural plywood 20 on the back surface of the working plywood 20 at intervals. (See (b)).

Further, according to the present embodiment, when the regular structure plywood 20 does not have the length necessary to obtain the ventilation furring strip 10, one structure having the cutting groove 21 is formed. Scarf processing by cutting one end of the plywood 20 diagonally
The same structural plywood 2 is also formed on one end of the other structural plywood 20 in which the cutting grooves 21 are similarly formed.
The scarf processing 22 ′ is cut diagonally in the opposite direction so as to face the scarf processing 22 of 0 (see (c)), these ends are overlapped, and, for example, a resorcinol resin adhesive is used as the scarf processing portion adhesive. By using and bonding, the pair of structural plywoods 20 and 20 are joined and integrated in the longitudinal direction X (see (d)).

Thereafter, the pair of structural plywoods 20, 20 integrally joined together are cut along a plurality of cutting lines 23 parallel to the longitudinal direction X which is a direction perpendicular to the cutting groove 21. By (see (e)), the ventilation furring strip 10 of the present embodiment in which the ventilation groove 17 is formed by the cutting groove 21.
Will be formed at once. In addition, if necessary, three or more structural plywoods 20 may be joined and integrated in the longitudinal direction X and then cut to form the ventilation furring strip 10.

Further, the ventilation furring strip 10 of this embodiment can also be formed by the following manufacturing steps shown in FIGS. 6 (a) to 6 (c). That is, the two first component plates 18 and 1
Structural plywood 20 ', which is formed by stacking two second constituent plates 19 together.
A strip-shaped plate 24 having a rectangular cross-section obtained by cutting another structural plywood obtained by laminating one first component plate 18 and one second component plate 19 with one surface thereof as a back face. Are arranged in parallel with each other at intervals ((a)), and the structural plywood 2
Structural plywood 2 by joining and integrating with the back of 0 '
Set to 0.

After that, structural plywood 20 'and strip 2
4 and the structural plywood 20 joined and integrated with the strip-shaped plate 24
A book in which the ventilation grooves 17 are formed by the intervals 25 between the strip-shaped plates 24 by cutting along a plurality of cutting lines 23 parallel to the longitudinal direction X that is a direction that intersects perpendicularly with (see (c)). A plurality of ventilation furring strips 10 of the embodiment are formed at one time.

The ventilation furring strip 10 of this embodiment formed as described above is attached to the outer wall of the building as follows. That is, when the ventilation furring strip 10 is attached in the horizontal direction (in the case of vertical siding), FIG.
As shown in FIG. 1, first, the ventilation waterproof sheet 11 or the like is attached to the outer surface of a pillar, a pillar, a beam, or the like, which is a structural material, by a tacker or the like. Next, for example, the ventilation furring strip 10 having a width of about 45 mm,
Nail at the starting position of siding 12 (L = 60)
Use to fix. When the base 26 is located at this position, the nails can be fixed at an interval of about 150 mm. Further, the ventilation furring strips 10 are sequentially attached upward at regular intervals of about 300 mm in the vertical direction. Ventilation furring 1
The interval at which nails are driven into 0 is, for example, about 455 mm in the lateral direction in accordance with the positions of structural members such as columns and studs. If the siding 12 has a large size (for example, a thickness of 12 mm, a width of 910 mm, and a height of about 3030 mm), nails (about 38 mm in length) are struck at the upper and lower end portions of the siding 12 at a pitch of about 200 mm, so that the inside of the siding 12 is inside. In the portion, nails are driven and fixed at the intersection of the ventilation furring strip 10 and the pillar. Further, as shown in FIG. 7, the ventilation drainage 27 may be attached so as to be sandwiched between the base 26 and the ventilation furring strip 10 at the lower end portion. Since the ventilation furring strip 10 of the present embodiment is formed of structural plywood, it is less likely to cause damage such as cracking due to nailing in during fixing work as compared with the case of using a solid material. , It becomes possible to drive a nail in a stable state.

When the ventilation furring strip 10 is mounted vertically (in the case of lateral siding), as shown in FIG. 8, the ventilation furring strip 10 is placed on the positions of structural members such as columns 28 and studs 28 '. Then, the nail 29 (L = about 60 mm) or the like is used for vertical fixing. For the pillar 28 located at the joint portion (see A) of the siding 12, for example, the ventilation furring strip 10 having a width of about 90 mm is used, and for the stud 28 ′ located at a place other than the joint portion, for ventilation of a width of about 45 mm, for example. The furring strip 10 is arranged and fixed by driving nails 29 in the longitudinal direction at a pitch of about 300 mm. In the joint portion of the siding 12, as shown in FIG. 9, the ventilation furring strip 10 is arranged on the back side of the siding 12 so as to straddle the ends of the pair of sidings 12 on both sides. For example, a nail 29 is driven into a portion 20 mm or more away from the end of the siding 12 in the overlapping portion with the width of about 40 mm to fix the siding 12. As a result, a nail is driven into the ventilation furring strip 10 at a side edge portion which is separated from the end portion by 20 mm or less. However, according to the present embodiment, the ventilation furring strip 10 is designed for structural use. Since it is made of plywood, compared to the case of using a solid material, it is less likely to cause damage such as cracking due to nailing into the side edge portion, and therefore it is possible to fix the siding 12 in a stable state. Become.

According to the ventilation furring strip 10 of this embodiment, it is possible to easily form the ventilation groove having a sufficient notch area while maintaining the mechanical strength, and the thickness accuracy is good. Less likely to warp or twist. That is,
Since the ventilation furring strip 10 of the present embodiment is formed by using a structural plywood having a considerable strength as compared with a solid material, the ventilation groove 17 having a large notch area with a U-shaped cross-sectional shape. It is possible to maintain a sufficient mechanical strength even if the above is formed. Further, according to the present embodiment, the ventilation groove 1
Since the first component plate 18 in which the fiber direction intersects the extending direction of the ventilation groove 17 perpendicularly appears on the bottom surface of 7, the mechanical strength at the inner corner portion of the ventilation groove 17 where breakage easily occurs is sufficiently ensured. It becomes possible to do. Furthermore, structural plywood 20
Compared with solid wood, has a better thickness accuracy and is less susceptible to warpage and twisting, so it is possible to effectively avoid unevenness when attaching the outer wall finish material, improve the appearance, and improve the furring It is possible to obtain a stable holding force for the outer wall finishing material. Furthermore, compared with solid wood, there are no knots in the material, cracks are less likely to occur when nails are driven, and the water content is low and corrosion is less likely to occur.

The present invention is not limited to the above embodiment, but various modifications can be made. For example, the ventilation groove
It may be formed on the surface of the ventilation furring strip, or may be provided on both the front and back surfaces. Further, the ventilation furring strip does not necessarily have to be installed horizontally or vertically along the base surface of the wall surface material, and may be installed diagonally.
Further, the structural plywood that constitutes the ventilation furring does not necessarily have to be composed of five laminated layers.

[0023]

As described above in detail, according to the ventilation furring strip of the present invention, it is possible to easily form the ventilation groove having a sufficient notch area while maintaining the mechanical strength. Good thickness accuracy and less likely to cause warping or twisting. Further, according to the method for manufacturing a ventilation furring strip of the present invention, it is possible to easily form the ventilation furring strip having the above-described effects.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view showing an example of a building in which a ventilation furring strip according to an embodiment of the present invention is used as an outer wall.

FIG. 2 is an enlarged perspective view of a portion A of FIG.

FIG. 3A is a side view of a ventilation furring strip according to one embodiment of the present invention, and FIG. 3B is a partially cutaway perspective view of the ventilation furring strip according to one embodiment of the present invention.

FIG. 4 is a partially enlarged perspective view illustrating the structure of structural plywood.

5 (a) to 5 (e) are explanatory views showing an example of a manufacturing process of a ventilation furring strip according to an embodiment of the present invention.

6A to 6E are explanatory views showing another example of the manufacturing process of the ventilation furring strip according to the embodiment of the present invention.

FIG. 7 is an explanatory diagram showing a state in which a ventilation drain is attached so as to be sandwiched between a base and a ventilation furring strip.

FIG. 8 is a plan sectional view illustrating a state in which a ventilation furring strip is attached in a vertical direction.

9 is an enlarged view of part A in FIG.

FIG. 10 is a partially cutaway perspective view of a conventional ventilation furring strip.

FIG. 11 is a schematic perspective view showing an example of a building in which a conventional ventilation furring strip is used as an outer wall.

[Explanation of symbols]

10 Ventilation furring 11 Breathable tarpaulin (wall surface material) 12 Siding (Outer wall finishing material) 13 ventilation space 14 Insulation 15 Back side 16 sides 17 Ventilation groove 18 First component plate 19 Second component plate 20,20 'structural plywood 21 cutting groove 22,22 'scarf processing 23 cutting line 24 strips 25 Distance between strips 26 foundation 27 Drain 28 pillars 28 'stud 29 nails 30-hat type joiner X Longitudinal direction of furring for ventilation

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Katsuharu Komuro             Sumitomo, 6-14-1, Nishi-Shinjuku, Shinjuku-ku, Tokyo             Forestry Crest Co., Ltd. (72) Inventor Jun Ikeda             4-7 28 Kitahama, Chuo-ku, Osaka City, Osaka Prefecture             Sumitomo Forestry Co., Ltd. (72) Inventor Satoshi Kawanami             4-7 28 Kitahama, Chuo-ku, Osaka City, Osaka Prefecture             Sumitomo Forestry Co., Ltd. (72) Inventor Ichiro Nakajima             4-7 28 Kitahama, Chuo-ku, Osaka City, Osaka Prefecture             Sumitomo Forestry Co., Ltd. F-term (reference) 2E001 DB02 FA04 GA73 HC02 NA07                       ND12                 2E110 AA09 AB04 AB22 CA07 CA23                       CA25 DA16 GB62Y

Claims (5)

[Claims] 1. An outer wall finish which is arranged along a base surface of a wall surface material such as a waterproof sheet, a ventilation sheet, and a heat insulating material, and maintains a ventilation space between the base surface and the outer wall finish material. Ventilation furring strip that serves as a base material when attaching materials, and is made of structural plywood and has a U-shaped cross section cut across at least one of the front and back surfaces across both sides. A ventilation furring strip characterized in that a plurality of grooves are provided at intervals. 2. The ventilation cylinder according to claim 1, wherein a constituent plate of the structural plywood whose fiber direction intersects with the extending direction of the ventilation groove appears on the bottom surface of the ventilation groove. edge. 3. A plurality of cutting grooves having a U-shaped cross section, which crosses the entire length in the width direction of the structural plywood, are formed in parallel on at least one of the front surface and the back surface of the structural plywood at intervals. The ventilation furring strip according to claim 1 or 2, wherein the cutting groove serves as the ventilation groove by cutting the structural plywood into a plurality of lines along a cutting line parallel to a direction perpendicular to the cutting groove. A method for producing a ventilation furring strip, comprising: 4. A plurality of cutting grooves having a U-shaped cross section are formed in parallel, scarfing is applied to two or more of the structural plywoods, and they are joined and integrated in the longitudinal direction with an adhesive and then cut into a plurality of pieces. The method for manufacturing a ventilation furring strip according to claim 3, wherein 5. A plurality of strip-shaped plates having a rectangular cross-section obtained by cutting another structural plywood are arranged in parallel at a distance on at least one of the front surface and the back surface of the structural plywood to join and integrate them. After that, by cutting the structural plywood into a plurality of lines along a cutting line parallel to the direction perpendicular to the strips, the gap between the strips serves as the ventilation groove. A method for manufacturing a ventilation furring, which comprises manufacturing the ventilation furring described.