JP6506008B2 - Waterproof insulation structure - Google Patents

Description

  The present invention relates to a waterproof insulation structure, and more particularly to a waterproof insulation structure installed on the top of a roof of a building and used for waterproofing and insulation of the roof.

FIG. 7 is a schematic perspective view when the conventional waterproof and heat insulating structure is installed on the top surface of the roof of a building, and FIG. 8 is a schematic end view seen from line VIII-VIII shown in FIG.
Referring to these figures, the conventional waterproof insulation structure 81 is used for waterproofing and heat insulation of the roof 2 of the building 1, for example, a urethane-based heat insulating material such as a sprayed hard urethane foam for building insulation. A thermal insulation layer 20 formed by spraying the upper surface 3 of the roof 2 made of a slate corrugated sheet roof material, and an upper surface 21 of the thermal insulation layer 20, for example, a urethane rubber waterproofing material such as a coating waterproofing material for a urethane rubber roof. The first waterproof layer 25 formed by applying to the above, and a urethane rubber based waterproofing material such as a coating waterproofing material for a urethane rubber based roof, for example, is applied to the upper surface 26 of the first waterproofing layer 25 The second waterproof layer 50 and a finishing layer 55 formed by applying a vinyl resin finish such as, for example, an ethylene vinyl acetate resin containing an aggregate to the upper surface 51 of the second waterproof layer 50 Ru. Here, the urethane-based heat insulating material preferably has a thermal conductivity of 0.026 W / m · K or less and a compressive strength of 400 kPa or more. The urethane rubber waterproofing material preferably has a tensile strength of 10 N / mm ² or more, an elongation of 200% or more, and a tear strength of 30 N / mm or more. The vinyl-based resin finish preferably has a tensile strength of 10 N / mm ² or more, an elongation of 200% or more, and a tear strength of 30 N / mm or more.

  In use, the waterproof insulation structure 81 is installed on the top surface 3 of the roof 2 of the building 1, so the first waterproof layer 25 and the second waterproof layer 50 of the waterproof insulation structure 81 are against the roof 2. Demonstrate a waterproof effect. Further, the heat insulating layer 20 of the waterproof and heat insulating structure 81 functions to suppress the inflow of heat from the outside to the indoor, and to suppress the outflow of heat from the indoor to the outdoor. As a result, the amount of power consumed for air conditioning will be reduced, and energy saving will be realized. Furthermore, since the waterproof and heat insulating structure 81 is installed on the top surface 1 of the roof 2, condensation is unlikely to occur on the indoor side of the roof 2, which suppresses the temperature change of the roof 2 and prolongs the life of the building 1 be able to.

  In the conventional waterproof and heat insulating structure 81 as described above, birds such as crows fly and stop on the upper surface 56 of the finishing layer 55 exposed to the outside, and the purpose is to adjust the length of the brow, to polish, etc. As a result, the waterproof and heat insulating structure 81 may be pricked. As a result, there is a risk that a hole will be opened in the waterproof thermal insulation structure 81 which has been pokes off by a bird's beak, and the waterproof function of the first waterproof layer 25 and the second waterproof layer 50 of the waterproof thermal insulation structure 81 may be lowered. there were. Therefore, in the waterproof and heat insulating structure 81, it has been desired that the waterproof and heat insulating structure 81 have a function such that the waterproof function does not deteriorate even when impacted by birds and the like.

  The present invention has been made to solve the problems as described above, and it is an object of the present invention to provide a waterproof and heat insulating structure having improved durability and improved impact resistance.

In order to achieve the above object, the invention according to claim 1 is a waterproof insulation structure installed on the top surface of a roof of a building, the insulation layer formed on the top surface of the roof, and the top surface of the insulation layer A second waterproof layer formed above the first waterproof layer, and a reinforcing layer formed between the first waterproof layer and the second waterproof layer. The reinforcing layer is uniformly spread so as to cover the upper surface of the reinforcing sheet made of fiber material, the third waterproof layer formed on the upper surface of the reinforcing sheet, and the third waterproof layer, And a silica sand having a second waterproof layer formed on the top surface thereof .

With this configuration, the reinforcing layer protects the heat insulating layer even if a part of the second waterproof layer is broken. Also, the reinforcing sheet is disposed above the heat insulating layer via the first waterproof layer. In addition, silica sand is present on the lower surface of the second waterproof layer.

According to a second aspect of the invention, in the structure of the invention of claim 1 Symbol placement, in which further comprising a finish layer formed on the upper surface of the second waterproof layer.

  With this configuration, the upper surface of the finishing layer is exposed.

As described above, according to the first aspect of the invention, even if a part of the second waterproof layer is broken, the reinforcing layer protects the heat insulating layer, so that the durability of the waterproof and heat insulating structure is improved. In addition, since the reinforcing sheet is disposed above the heat insulating layer via the first waterproof layer, the impact resistance of the waterproof and heat insulating structure is improved. Furthermore, the presence of silica sand on the lower surface of the second waterproof layer reinforces the second waterproof layer.

The invention of claim 2, wherein, in addition to the effect of the invention of claim 1 Symbol placement, to expose the upper surface of the finishing layer, landscape is improved.

It is a schematic perspective view when the waterproof insulation structure by the 1st Embodiment of this invention is installed in the upper surface of the roof of a building, and is a figure corresponding to FIG. It is a schematic end elevation seen from the II-II line shown in FIG. 1, and is a figure corresponding to FIG. It is a schematic end elevation which shows a part of process of installing the waterproofing insulation structure shown in FIG. 1 on the upper surface of the roof of a building. It is a schematic end elevation which shows another part of installation process of the waterproof insulation structure following the installation process shown in FIG. It is a schematic perspective view when the waterproof insulation structure by the 2nd embodiment of this invention is installed in the upper surface of the roof of a building, and is a figure corresponding to FIG. It is a schematic end elevation seen from the VI-VI line shown in FIG. 5, and is a figure corresponding to FIG. It is a schematic perspective view when the conventional waterproof insulation structure is installed in the upper surface of the roof of a building. It is the schematic end elevation seen from the VIII-VIII line shown in FIG.

  FIG. 1 is a schematic perspective view when the waterproof and heat insulating structure according to the first embodiment of the present invention is installed on the top surface of a roof of a building, corresponding to FIG. 7, and FIG. It is a schematic end elevation seen from the II-II line shown in FIG. 1, and is a figure corresponding to FIG.

  The waterproof and heat insulating structure 11 according to the first embodiment is the same as the conventional waterproof and heat insulating structure 81 shown in FIG. 7 except for a reinforcing layer 31 described later. Here, the differences will be mainly described.

  With reference to these figures, the waterproof and heat insulating structure 11 is used for waterproofing and heat insulation of the roof 2 of the building 1, and in the conventional waterproof and heat insulating structure 81 shown in FIG. It further comprises a reinforcing layer 31 formed between the second 25 and the second waterproof layer 50.

  The reinforcing layer 31 of the waterproof and heat insulating structure 11 is laid on the upper surface 26 of the first waterproof layer 25 and made of a reinforcing sheet 34 made of a polyester fiber material, for example, urethane such as a coating waterproofing material for urethane rubber roof A third waterproofing layer 38 formed by applying a rubber-based waterproofing material to the upper surface 35 of the reinforcing sheet 34 and an upper surface 39 of the third waterproofing layer 38 are spread and formed. It is comprised from the silica sand 42 in which the waterproof layer 50 is formed. Here, the fiber material preferably has a thickness of 0.35 to 0.4 mm, a tensile strength of 130 kg / 3 cm or more, and an elongation of 18 to 30%.

  Even when the waterproof and heat insulating structure 11 receives an impact from birds and the like and a part of the second waterproof layer 50 is damaged in use, the reinforcing layer 31 located above the heat insulating layer 20 protects the heat insulating layer 20 Therefore, the durability of the waterproof and heat insulating structure 11 is improved. Further, the reinforcing layer 31 of the waterproof and heat insulating structure 11 is formed between the first waterproof layer 25 and the second waterproof layer 50, and a sustained effect is obtained, and the necessity of maintenance is also achieved. Low. Furthermore, the waterproof and heat insulating structure 11 does not impair the waterproof and heat insulating effects.

  FIG. 3 is a schematic end view showing a part of the process of installing the waterproof and heat insulating structure shown in FIG. 1 on the upper surface of the roof of a building, and FIG. 4 is the waterproof and heat insulating following the installation process shown in FIG. It is a schematic end elevation which shows another part of the installation process of a structure.

  Referring to (1) of FIG. 3, first, a urethane-based heat insulating material is blown onto upper surface 3 of roof 2 of building 1 using blowing machine 61 to foam, and a heat insulating layer of waterproof heat insulating structure 11 Form twenty. Here, the thickness L of the heat insulating layer 20 is preferably set within 20 to 50 mm. Moreover, by using the blowing machine 61, it can install also on the roof 2 with an unevenness | corrugation.

Referring to (2) of FIG. 3, using the raster brush 63 in the direction indicated by the solid arrow, the urethane rubber waterproofing material is prevented from uniformly entraining air on the upper surface 21 of the heat insulating layer 20 uniformly. It is applied to form the first waterproof layer 25 of the waterproof and heat insulating structure 11. In addition, the usage-amount of a urethane rubber waterproofing material is 1.0 kg / m < ² > here.

  Referring to (3) of FIG. 3, using the defoaming roller 75 in the direction indicated by the solid arrow, the reinforcing sheet 34 made of polyester fiber material is shown from the top as indicated by the two-dot chain arrow. , Laying and fixing on the upper surface 26 of the first waterproof layer 25 without twisting, twisting or wrinkles. Thereby, the reinforcement sheet 34 which comprises the reinforcement layer 31 of the waterproof and heat insulation structure 11 is formed. By configuring in this manner, the reinforcing sheet 34 is disposed above the heat insulating layer 20 via the first waterproof layer 25, so the impact resistance of the waterproof and heat insulating structure 11 is improved. Therefore, the waterproof function of the waterproof and heat insulating structure 11 is unlikely to be deteriorated even if it receives an impact from birds or the like. Here, one or more reinforcing sheets 34 may be laid on the upper surface 26 of the first waterproof layer 25.

Next, referring to (1) of FIG. 4, using the raster brush 67 in the direction indicated by the solid arrow, the urethane rubber waterproofing material uniformly entraps air uniformly on the upper surface 35 of the reinforcing sheet 34. The third waterproof layer 38 of the reinforcing layer 31 of the waterproof and heat insulating structure 11 is formed so as not to apply. Here, the amount of the urethane rubber waterproofing material used is 0.5 kg / m ² .

Referring to (2) of FIG. 4, using the sieve 69 in the direction indicated by the solid arrow, the silica sand 42 is evenly and uniformly distributed on the upper surface 39 of the third waterproof layer 38. Thereby, the silica sand 42 which comprises the reinforcement layer 31 of the waterproof and heat insulation structure 11 is formed. In addition, the usage-amount of the silica sand 42 is 0.4 kg / m < ² > here.

Referring to (3) of FIG. 4, first, if there is a surplus portion of the silica sand 42 on the upper surface 43 of the silica sand 42, it is removed. After that, using the roller brush 71 indicated by the two-dot chain line in the direction indicated by the two-dot chain arrow, the urethane rubber waterproofing material is applied so as not to uniformly entrap air uniformly on the upper surface 43 of the silica sand 42 To form a second waterproof layer 50. By this configuration, the silica sand 42 is present below the second waterproof layer 50, and the second waterproof layer 50 is reinforced. Thereby, the strength of the waterproof and heat insulating structure 11 is increased, and the impact resistance is further improved. Here, the amount of the urethane rubber waterproofing material used is 0.5 kg / m ² .

Next, using the roller brush 73 in the direction indicated by the solid arrow, the vinyl resin finish is uniformly applied uniformly on the upper surface 51 of the second waterproof layer 50 to form the finish layer 55. Here, the amount of vinyl resin finish used is 0.15 kg / m ² . With this configuration, the second waterproof layer 50 is positioned below the finishing layer 55, and the top surface 56 of the finishing layer 55 is exposed, thereby improving the view.

  As described above, the waterproof and heat insulating structure 11 of the present invention is the conventional waterproof and heat insulating structure shown in FIG. 7 in the installation process of the reinforcing layer 31 shown in (3) to (2) of FIG. It is added to the installation step (not shown) at 81. Therefore, while utilizing the installation process of the conventional waterproof and heat insulation structure 81 shown in FIG. 7, the waterproof and heat insulation structure 11 is installed without requiring a new preparation process and a drastic change for the installation of the reinforcing layer 31. It is possible. Further, the waterproof and heat insulating structure 11 is installed on the top surface 3 of the roof 2 of the building 1, and the installation operation is not performed on the indoor side, and the indoor side is not affected. Therefore, on the indoor side, it can be used normally. Furthermore, even when the waterproof and heat insulating structure 11 requires repair or maintenance, as described above, the installation process is mainly spraying, coating and laying, so repair and maintenance are easily performed. be able to.

  FIG. 5 is a schematic perspective view when the waterproof and heat insulating structure according to the second embodiment of the present invention is installed on the top of the roof of a building, corresponding to FIG. 1, and FIG. It is a schematic end elevation seen from the VI-VI line shown in FIG. 5, and is a figure corresponding to FIG.

  The waterproof and heat insulating structure 12 according to the second embodiment is obtained by removing the third waterproof layer 38 and the silica sand 42 from the waterproof and heat insulating structure 11 according to the first embodiment shown in FIG. . Here, the differences will be mainly described.

  With reference to these drawings, the reinforcing layer 31 of the waterproof and heat insulating structure 12 is formed only of the reinforcing sheet 34. Therefore, the reinforcing sheet 34 which is the reinforcing layer 31 of the waterproof and heat insulating structure 12 is laid on the upper surface 26 of the first waterproof layer 25, and the second waterproof layer 50 is formed on the upper surface 35. With such a configuration, when installed, the waterproof and heat insulating structure 12 has the third structure shown in (1) of FIG. 4 as compared with the water and heat insulating structure 11 according to the first embodiment shown in FIG. Since the installation steps of the waterproof layer 38 and the silica sand 42 shown in (2) of FIG. 4 are omitted, the installation time can be shortened. However, since the waterproof and heat insulating structure 12 has the reinforcing sheet 34 which is the reinforcing layer 31, it is provided with impact resistance, and exhibits the same effect as the waterproof and heat insulating structure 11 according to the previous embodiment.

  In each of the above embodiments, the waterproof and heat insulating structure is mainly used to prevent bird damage, but the heat insulating, waterproof and impact resistant structure is not limited thereto. It may be used for the purpose.

  In each of the above-described embodiments, the roof on which the waterproof insulation structure is installed has a specific shape, but it may be, for example, a folded roof, a tiled roof, a corrugated roof or a slate roof. May have other shapes.

  Furthermore, in each of the above-described embodiments, the heat insulating layer is made of the heat insulating material formed by spraying on the top surface of the roof, but another shape is used, for example, a heat insulating material formed in a flat plate shape. It may be a heat insulating material.

  Furthermore, although the heat insulation layer was formed from the specific raw material in said each embodiment, as long as it is used as a heat insulating material, you may be formed from another raw material.

  Furthermore, in each of the above embodiments, the waterproof layer is formed of a specific material, but may be formed of another material as long as it is used as a waterproof material.

  Furthermore, in each of the above-described embodiments, the reinforcing sheet is a sheet made of a specific material, but may be a sheet formed of another fiber material such as a synthetic resin.

  Furthermore, in each of the above-described embodiments, only one reinforcing sheet is laid on the upper surface of the first waterproof layer, but two or more reinforcing sheets are laid on the upper surface of the first waterproof layer. It is good. Also, two or more reinforcing sheets of different materials may be laid one on top of the other.

  Furthermore, although the finishing layer is formed of a specific material in each of the above embodiments, it may be formed of another material as long as it is used as a finishing material.

  Furthermore, in each of the above embodiments, the waterproof and heat insulating structure has the finish layer formed on the upper surface of the second waterproof layer, but the finish layer is formed on the upper surface of the second waterproof layer. It does not have to be.

  Furthermore, in the first embodiment described above, the silica sand is dispersed using a sieve, but other devices and the like may be used as long as they have a sieve function, such as a spray gun, for example. good. Or you may distribute by hand, without using a sieve.

  Furthermore, in the above-described embodiments, the waterproof and heat insulating structure has a specific usage amount in each layer at the time of installation, but other usage amounts may be used in each layer. Alternatively, for the purpose of shortening the installation time, each layer may be formed by over-coating etc., paying attention to the fact that the drying time is shortened by thinly coating.

In order to verify the effect of the waterproof and heat insulating structure 11 according to the first embodiment shown in FIG. 1, an impact resistance test was performed at the central building of the building materials test center. This test is to evaluate the resistance of the waterproof layer to impact.
1. Test target First, the test target of the impact resistance test for evaluating the resistance to impact is shown.

  As Example 1 of the test object, the waterproof and heat insulating structure 11 according to the first embodiment shown in FIG. 1 was used. In Example 1, in order to correspond to each of the test conditions to be described later, the specimen No. 1 which is the same waterproof and heat insulating structure 11 is used. 1 to 9 were used. For each of the test temperatures under test conditions to be described later, three of these test bodies (each corresponding to Test body Nos. 1 to 3, Test body Nos. 4 to 6 and Test body Nos. 7 to 9) are prepared. Ru.

Next, as a comparative example 1 to be tested, the conventional waterproof and heat insulating structure 81 shown in FIG. 7 was used. In Comparative Example 1, in order to correspond to each test condition to be described later, the specimen No. 1 which is the same waterproof and heat insulating structure 81 is used. 10 to 18 were used. For each of the test temperatures for test conditions to be described later, three test bodies (each corresponding to test bodies No. 10 to 12, test bodies No. 13 to 15 and test bodies No. 16 to 18) are prepared. Ru. Moreover, test body No. Each of 10 to 18 is a test sample No. It corresponds one to one with each of 1 to 9 in numerical order.
2. Test method The test method for Example 1 and Comparative Example 1 is based on the impact resistance test according to "Architectural construction standard specification and description JASS 8 waterproof construction 2008 1972 establishment 2008 revision (fifth)" published by the Architectural Institute of Japan. went.
3. Test conditions As test conditions in the above-mentioned impact resistance test, it carried out about the test temperature of 0 ° C, 20 ° C, and 60 ° C, respectively. Moreover, based on the above-mentioned test method, it carried out about the test height of 0.5 m, 1 m, and 1.5 m, respectively for every test temperature.
4. In each of the test bodies of Example 1 or Comparative Example 1 corresponding to each of the test temperatures described above and each of the test heights, there were holes as “o” when no holes were formed. In the case it was decided to be "x". If it is difficult to determine the presence of holes, the presence or absence of water leakage is determined by a 250 mm water permeability test.

  In response to this, impact resistance is determined in each of the test temperatures in four categories of impact resistance 1 to 4. Here, the impact resistance 1 indicates a case in which at least one of the three test bodies has a hole with an impact having a test height of 0.5 m, and the impact resistance 2 has a test of three bodies in an impact having a test height of 1 m. The impact resistance 3 indicates the case where a hole is present in one of the three test bodies at a test height of 1.5 m and the impact resistance 4 indicates a case where a hole is present in one of the three bodies. The figure shows the case where no hole is formed in 3 of the 3 test bodies at an impact of 1.5 m in height.

The realistic meaning of this judgment is that impact 1 means that there is a possibility that a hole will be made by walking with leather shoes, and shock 2 means that no holes will be made by walking with leather shoes, shock 3 In the case of leather shoes, it means that no holes will come out even if you walk wildly, and in shock resistance 4, it means that no holes will come out even if you drop heavy tools and tools.
5. Test Results The results of this impact resistance test are shown in Table 1 below.

この表１を参照して、実施例１の試験体Ｎｏ．１〜９の各々は、対応する試験温度、及
び、対応する試験高さにおいて、全て「○」であり、全てに対して穴があかなかった。よ
って、実施例１の耐衝撃性は、各試験温度において、最も高い耐衝撃性を示す耐衝撃４と判定された。

With reference to this Table 1, the test specimen No. 1 of Example 1 was obtained. Each of 1 to 9 was all "o" at the corresponding test temperature and the corresponding test height, and no hole was formed for all. Therefore, the impact resistance of Example 1 was determined to be impact resistance 4 exhibiting the highest impact resistance at each test temperature.

On the other hand, for the test sample No. 1 of Comparative Example 1, 10, test body No. 13, and test object No. In each of the test temperatures, Test No. 16 was “o” when the test height was 0.5 m, and no hole was formed. However, for the test sample No. 1 of Comparative Example 1. 11, test body No. 14 and test specimen No. In No. 17, at each test temperature, when the test height was 1 m, it was “x” and there was a hole. Therefore, in the test sample No. 1 of comparative example 1. 12, test body No. 15 and test specimen No. At 18, no test was conducted at a test height of 1.5 m at each test temperature. Therefore, the impact resistance of Comparative Example 1 was determined to be impact resistance 2 at each test temperature.
6. Evaluation From the judgment of Table 1, the waterproof and heat insulating structure 11 (Example 1) according to the first embodiment shown in FIG. The impact resistance is determined to be impact resistance 4, so it can be evaluated that the impact resistance is high enough to prevent holes even if heavy tools and instruments are dropped.

  On the other hand, in the case of the conventional waterproof and heat insulating structure 81 (Comparative Example 1) shown in FIG. 7, the impact resistance is judged to be impact resistance 2 at all the test temperatures of 0 ° C., 20 ° C. and 60 ° C. From the above, it can be evaluated that there is no hole in the case of walking with leather shoes, but the risk of forming holes when having a rough walk in leather shoes is that it has a certain degree of impact resistance.

  From this, it can be said that the waterproof and heat insulating structure 11 according to the first embodiment is improved in resistance to impact and improved in impact resistance as compared with the conventional waterproof and heat insulating structure 81.

DESCRIPTION OF SYMBOLS 1 ... Building 2 ... Roof 3 ... Upper surface 11, 12 ... Waterproof insulation structure 20 ... Thermal insulation layer 21 ... Upper surface 25 ... 1st waterproof layer 31 ... Reinforcement layer 34 ... Reinforcement sheet 35 ... Upper surface 38 ... 3rd waterproof layer 39: upper surface 42: silica sand 50: second waterproof layer 51: upper surface 55: finishing layer In the drawings, the same reference numerals denote the same or corresponding parts.

Claims (2)

A waterproof insulation structure installed on the top of the roof of a building,
A thermal insulation layer formed on the top surface of the roof;
A first waterproof layer formed on the upper surface of the heat insulating layer;
A second waterproof layer formed above the first waterproof layer;
A reinforcing layer formed between the first waterproof layer and the second waterproof layer ;
The reinforcing layer is
A reinforcing sheet made of fiber material,
A third waterproof layer formed on the upper surface of the reinforcing sheet,
A waterproof and heat insulating structure comprising: silica sand which is uniformly distributed so as to cover the upper surface of the third waterproof layer, and on which the second waterproof layer is formed . It said second waterproof layer finish layer formed on the upper surface of the further equipped, waterproof insulating structure of claim 1 Symbol placement.

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