JP5647821B2 - Waterproof cover material for siding joints - Google Patents

Description

  The present invention relates to a waterproof cover material for siding used as an exterior material of a building, and more particularly to waterproofing of rain and snow water that tends to enter the inside from the surface side of a siding joint.

  Siding is a plate-like exterior material stretched on the outer wall, and is generally manufactured at the factory, and many are known to have excellent fire resistance and durability. In recent years, the number of types has increased, and there are sidings such as cement (ceramics), ceramic, metal, and resin. It is often used as an outer wall of a house (especially a wooden house) because it has abundant designs such as color patterns, is relatively inexpensive and easy to construct. Since siding is durable and lightweight, it is also frequently used for renovating outer walls.

  FIG. 7 illustrates a general arrangement structure of siding. Reference numeral 1 denotes a pillar (or a stud), 2 denotes a moisture-permeable waterproof sheet, 3 denotes a trunk edge (vertical trunk edge), and 4 denotes a siding (siding material). In the siding 4, the left and right sidings 4 are juxtaposed and fixed using the trunk edge 3, and a filler (caulking material) 5 is disposed at the joint (joint) to waterproof the joint.

  In order to improve the waterproof performance of the joint part, as shown in FIG. 8, a backup material 6 is arranged on the trunk edge 3, a projection 7 is provided in the center of the backup material 6, and the projection 7 is inserted into the joint part. A technique for improving the waterproof performance of joints by arranging them so as to be known is also known (Patent Document 1).

JP 2006-283446 A

  The problem is the intrusion of rain and snow water due to aging. This is because the intrusion into the rain and snow water causes corrosion of the wooden frame (column material or wooden base). Especially in recent highly airtight houses, the indoor temperature is kept relatively high, so that the temperature of rain and snow water entering the interior tends to be high, and the corrosion of the wooden frame tends to be further promoted.

  Rain and snow water intrusion occurs for a variety of reasons. First, the filler (5) filling the joints of the siding (4) is easily deteriorated by the ultraviolet rays contained in the sun rays, and is repeatedly contracted and expanded due to the temperature difference of the outside temperature. Since it is thinner than the state, a gap is created in the joint and gradually spreads.

Secondly, the siding (4) repeats expansion and contraction due to the difference in the outside air temperature or the difference between the room temperature and the outside air temperature. Since the siding (4) is fixed to the body edge (3) by fixing at a fixed point such as nailing, there are not a few cases where deformation occurs by repeated expansion and contraction. When the siding (4) is deformed or misaligned, there is a problem with the filler (5) of the joint, and a gap is formed in the joint and rain and snow water enters inside.

  The rain / snow water that has entered inside from the joints of the siding (4) reaches the trunk edge (3), spreads around to the left and right, and reaches the moisture-permeable waterproof sheet 2. The moisture permeable waterproof sheet 2 is for preventing rain and snow water from entering, but in actual construction, a nail for fixing the siding (4) penetrates the trunk edge (3) and the moisture permeable waterproof sheet. It is not uncommon for 2 to have holes. For this reason, the rain / snow water that has entered the inside penetrates from the hole of the moisture-permeable waterproof sheet 2 to the back, that is, the pillar (1).

  When rain / snow water enters the pillar (1) in this manner, the rain / snow water flows down and reaches the foundation, so that the pillar (1) itself and the foundation are exposed to the rain / snow water. Since recent wooden houses are airtight, the indoor temperature is kept high even in winter, so the temperature of rain and snow water that has entered the interior is also kept high, and the pillar (1) and foundation are wooden. If this is the case, it will corrode in a few years.

  Depending on the exterior renovation that improves the appearance, even if the joints are refilled and refilled cleanly, the corroded pillar (1) and foundation hazard (such as earthquake resistance) cannot be improved.

  Therefore, an object of the present invention is to waterproof rain and snow water that is about to enter from the surface of the siding joint into the inside of the housing.

  In order to achieve the object and solve the problem, the waterproof cover material for a siding joint according to the present invention has any one of a horizontal cross-section substantially U-shaped, substantially U-shaped, and substantially V-shaped. The cap material comprises a vertically long cap material and a rubber sponge material to be loaded into the recess of the cap material. The cap material has screw holes for driving a fixed screw, while the rubber sponge material is similar to the recess of the cap material. In addition to being formed into a shape, the cap member is formed into a wall thickness that protrudes from the concave portion of the cap material.

  The rubber sponge material has a cross-sectional thickness that protrudes from the recess of the cap material. This is because the cap material is fixed to the rubber sponge when the cap material is fastened to the surface side of the siding joint with a fixing screw. This is because the material is pressed and the rubber sponge material is placed in a compressed state while covering the joints of the siding. If the rubber sponge material is arranged in such a state, rain and snow water around the rubber sponge material covering the joint is prevented from entering the interior by the rubber sponge material and cannot enter the back of the joint.

  Since the rubber sponge material is formed in a shape similar to the concave portion of the cap material, it has a substantially U-shaped cross section or a substantially U-shaped cross section.

  The screw hole provided in the cap material may be provided with a substantially conical screw recess so that the head of the fixed screw is positioned on the same plane as the general surface of the cap material.

  By providing a substantially conical screw recess in the screw hole portion, the head (surface) of the fixed screw can be positioned on the same plane as the general surface of the cap material when the fixed screw is hit. . As a result, there is no unevenness on the surface of the cap material, and a beautiful finish can be guaranteed in terms of appearance quality.

  A third aspect is a waterproof structure using the waterproof cover material of the siding joint according to the first or second aspect. This is a waterproof cover material composed of a cap material having any one of a horizontal cross-section substantially U-shape, substantially U-shape, and substantially V-shape, and a rubber sponge material loaded in the recess of the cap material. The tip of the fixed screw driven through the screw hole of the cap material is made to penetrate the rubber sponge material and the trunk edge to reach the column material, and the concave portion of the cap material is The side wall end surface to be formed is brought into contact with the siding surface.

  According to this structure, the rubber sponge material loaded in the concave portion of the cap material is pressed and contracted by the cap material, and the area around the siding joint is closed in a watertight manner to completely prevent rain and snow from entering the inside. The cap material is supported by the housing itself so that the tip of the fixing screw penetrates the rubber sponge material and the body edge, and is kept in a good fixed state over a long period of time. maintain. Moreover, since the side wall end surface constituting the concave portion of the cap material is brought into contact with the siding surface, it is possible to press and prevent the siding connection portion (joint area) from rising due to aging.

  According to the waterproof cover material and the waterproof structure using the waterproof cover material according to the present invention, the rubber sponge material arranged and fixed while being pressed by the cap material tends to enter the inside of the housing from the surface of the siding joint. Rain and snow water can be completely blocked (waterproof).

It is a perspective view which illustrates the cover material concerning an embodiment. It is sectional drawing which illustrates the cover material of FIG. 1 with the joint of a siding. It is sectional drawing which illustrates a state when the cover material of FIG. 1 is fastened and fixed. It is sectional drawing which illustrates the construction state of the cover material of FIG. It is a perspective view which illustrates the arrangement | positioning state at the time of construction of the cover material of FIG. It is sectional drawing which illustrates embodiment of the screw hole provided in the cover material of FIG. It is a 1st figure which illustrates the conventional siding joint. It is a 2nd figure which illustrates the conventional siding joint.

  FIG. 1 shows an embodiment of a waterproof cover material for a siding joint according to the present invention. This waterproof cover material is composed of a vertically long cap material 10 having a substantially U-shaped horizontal section and a rubber sponge material 20 loaded in the recess 11 of the cap material 10, and the cap material 10 is used for driving a fixing screw. Screw holes (see FIG. 5) are provided. In addition, the rubber sponge material 20 is formed in a shape similar to the concave portion 11 of the cap material 10, and is formed into a wall thickness that protrudes from the concave portion 11 of the cap material 10.

  In this embodiment, the cap material 10 is formed in a substantially U-shaped cross section. The material may be either metal or resin, but is preferably made of metal that can withstand the temperature difference in summer and winter, and in terms of manufacturing cost, it is desirable to use a steel plate or an aluminum plate. Since it is not a member which receives an impact from the outside, the thickness of the plate material may be thin. For example, it can be 10-7 mm or less. When using a metal plate such as a steel plate, a rust-proofing treatment is performed as necessary.

  It is desirable that the cap material 10 has a long vertically long shape so as to cover the siding joint formed in the vertical direction. This is because siding joints can be covered seamlessly by one cap material 10 by the long vertical molding.

  The cap member 10 includes a back plate 14 and side plates 15 provided at both left and right end portions of the back plate 14 so as to form a concave portion 11 having a U-shaped cross section. Further, it is desirable to provide an upper lid plate 16 and a lower lid plate 17 above and below the concave portion 11 having a substantially U-shaped cross section. This is because the waterproof performance of the upper and lower ends of the rubber sponge material 20 loaded in the recess 11 is enhanced.

  The rubber sponge material 20 is formed in a shape similar to the recess 11 so that it can be loaded into the recess 11 of the cap material 10 having a U-shaped cross section. In this embodiment, since the concave portion 11 of the cap material 10 has a substantially U-shaped cross section, the rubber sponge material 20 loaded therein is molded into a substantially square cross section. This is because the rubber sponge material 20 can be loaded in the recess 11 without any gap.

  The rubber sponge material 20 is formed into a wall thickness that protrudes from the recess 11 of the cap material 10. Specifically, the vertical dimension (inner diameter) of the cap material 10 is W1, the lateral dimension (inner diameter) is W2, the depth dimension (inner diameter) is W3, the vertical dimension of the rubber sponge material 20 is W2-1, and the lateral dimension is W2. -2, When the depth dimension is W2-3, the relationship of depth dimension W3 <W2-3 is established. Since the rubber sponge material 20 is contractible, the vertical dimension W1 = W2-1 and the horizontal dimension W2 = W2-2 may be used.

  The rubber sponge material 20 is in close contact with the surface side of the siding joint and exhibits a waterproof function. For this reason, as shown also in FIG. 2, the depth dimension W2-3 of the rubber sponge material 20 is made larger than the depth dimension W3 of the cap material 10, and the cap material 10 is formed as a wall thickness protruding from the recess 11 of the cap material 10. At the time of fixing (see FIG. 3), the surface side of the siding joint (filler 5) can be covered without any gap by pressing the cap material 10.

  The rubber sponge material 20 is of a natural rubber type (a rubber sponge material made mainly of natural rubber and styrene butadiene rubber), a chloroprene rubber type (excellent in weather resistance and ozone resistance), and a nitrile rubber type ( (Excellent oil resistance), ethylene / propylene rubber type (excellent ozone resistance and heat resistance), silicone rubber type (excellent heat resistance, cold resistance and electrical insulation), fluoro rubber type (heat resistance Can be used.

  In consideration of the balance of functionality and economy, the product name Neolon (registered trademark; Shinagawa Gosho Kogyo Co., Ltd.) can be used as the rubber sponge material 20. Neolon is a long rubber sponge obtained by firing chloroprene rubber and is a single foam sponge with a low water absorption rate. Since it is a closed-cell foam, it is optimal for sealed locations, is easily available, and is easy to cut. Since it is a chloroprene rubber system, it has excellent weather resistance and ozone resistance.

  By using such a cover material 10, the siding joint (5) can be covered and waterproofed from the surface side, and the housing can be protected from the damage of rain and snow water that tries to enter the back from the siding joint (5). Become.

  4 and 5 illustrate a waterproof structure using this waterproof cover material. This waterproof structure is a waterproof cover comprising a cap material 10 having a substantially U-shaped cross section (may be a substantially semicircular cross section) and a rubber sponge material 20 loaded in a recess 11 (see FIG. 1) of the cap material 10. The material is arranged on the surface side of the siding joint (5), and the tip of the fixed screw 19 driven through the screw hole 18 of the cap material 10 is made to penetrate the rubber sponge material 20 and the trunk edge 3 to be a pillar material. 1, and the side wall end surface constituting the concave portion 11 of the cap material 10 is brought into contact with the surface of the siding 4.

  The screw hole 18 of the cap material 10 is formed at an appropriate interval in the approximate center of the back plate 14, for example. The screw hole 18 may be simply a circular hole formed in a flat plate. However, considering the appearance of the finish, as shown in FIG. 6, the head H of the fixing screw 19 is substantially conical (substantially trapezoidal in cross section) so that it is positioned on the same plane as the general surface of the cap material 10. It is desirable to provide a screw recess Q. If it carries out like this, the head H of the fixed screw | thread 19 (head screw etc.) will not protrude from the general surface of the cap material 10 after construction, and appearance will not be impaired. The cross-sectional shape of the screw recess Q is expanded toward the surface side of the cap material 10.

  A plurality of fixing screws 19 that are driven up and down are allowed to penetrate the rubber sponge material 20 and the trunk edge 3 to reach the pillar material 1 at the tip thereof. In order to stabilize the fixed state, it is desirable that the distal end portion of each fixing screw 19 reaches the approximate center of the column 1. Of course, the front ends of the fixing screws 19 penetrate the joint filler 5 and the moisture-permeable waterproof sheet 2.

  When the cap material 10 is fastened and fixed through the fixing screw 19 in this way, the rubber sponge material 20 loaded in the recess 11 of the cap material 10 is pressed against the back plate 14 of the cap material 10 and contracts. When the side wall end surface constituting the recess 11 of the cap material 10 is brought into contact with the surface of the siding 4 after being completely tightened and fixed, the rubber sponge material 20 is hidden by the cap material 10 and cannot be seen from the outside. This is because both sides are hidden by the side wall of the recess 11, the upper end is hidden by the upper lid plate 16, and the lower end is hidden by the lower lid plate 17.

  However, the siding 4 is not a perfect plane, and the side wall end face that forms the recess 11 of the cap material 10 is not a perfect uniform surface. For this reason, although a delicate gap arises in both, since the rubber sponge material 20 loaded in the compressed state exhibits a waterproof function, the siding joint (5) is protected from intrusion of rain and snow water.

  Therefore, according to the waterproof structure of the cover material 10, the siding joint (5) can be covered and waterproofed from the surface side, so that it can be applied regardless of whether it is newly constructed or renovated. Protects from snow and water and can significantly improve the life of the frame. The frame life of a wooden house is generally correlated with the corrosion of the foundation and pillars. With this waterproof structure, it is possible to almost completely block rain and snow water entering the interior from the siding joint (5). It is.

  In addition, since the cover material 10 and the rubber sponge material 20 are both relatively lightweight and can be easily constructed by a small number of workers, the work cost can be minimized in both cases of new construction and renovation. I can do it. In particular, in the case of renovation, it is not necessary to remove the siding 4 as the outer wall material, so that the renovation cost can be surely reduced. For this reason, it becomes possible to improve the competitiveness in the construction industry exposed to severe competition.

  The cap member 10 is not limited to a substantially U-shaped horizontal section, but may have a substantially U-shaped (semicircular shape) horizontal section or a substantially V-shaped horizontal section. This is because even in these cross-sectional shapes, the rubber sponge material (20) loaded in the recess (11) can be pressed and brought into close contact with the siding joint (5) to exert a waterproof function.

  The thickness of the cap material 10 may be 7 to 5 mm, or 5 to 3 mm. This is because it is a member that does not receive strong external force or impact.

  The lower lid plate (17) may be provided with a drain hole. The rubber sponge material (20) is desirably loaded (fitted) into the cap material (10) without any gap, and rain and snow water does not enter the recess (11) of the cap material (10). However, when the rubber sponge material (20) is thinned up and down due to aging, rain and snow water can be discharged to the outside of the recess (11).

DESCRIPTION OF SYMBOLS 1 Column material 2 Breathable waterproof sheet 3 Trunk edge 4 Siding 5 Siding joint (filler)
DESCRIPTION OF SYMBOLS 10 Cap material 11 Recess 20 Rubber sponge material 14 Back plate 15 Side plate 16 Upper lid plate 17 Lower lid plate 18 Screw hole 19 Fixed screw H Fixed screw head Q Screw recess W1 Vertical dimension (inner diameter) of cap material
W2 Cap dimensions (inner diameter)
W3 Depth dimension of cap material (inner diameter)
W2-1 Vertical dimension of rubber sponge material W2-2 Horizontal dimension of rubber sponge material W2-3 Depth dimension of rubber sponge material

Claims (2)

A waterproof cover material placed on the surface of the siding joint,
This waterproof cover material
It consists of a vertically long cap material having a substantially U- shaped horizontal section, and a rubber sponge material to be loaded in the recess of the cap material,
The cap material is
While providing a back plate and side plates provided at the left and right ends of the back plate so as to form a U-shaped concave section,
While having a screw hole for driving a fixing screw into the back plate ,
The rubber sponge material is
Causes loaded without clearance to the recess by forming the recess similar in shape of the cap member,
Waterproof cover member siding joint, characterized in that molded into wall thickness projecting from the recess of the cap member. 2. The siding according to claim 1, wherein the screw hole provided in the cap material includes a substantially conical screw recess so that a head of the fixed screw is positioned on a substantially same plane as the general surface of the cap material. Waterproof cover material for joints.

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