JP6535707B2 - Construction method of inner insulation panel, inner insulation wall and inner insulation panel - Google Patents

Description

  This invention relates to the construction method of the interior insulation panel, interior insulation wall and interior insulation panel, thermal insulation repair of wooden detached house, thermal insulation repair of RC construction and S construction, new construction such as wooden construction, RC construction and S construction In the interior insulation panel attached to the existing wall from the indoor side, the interior insulation wall formed by securing the plurality of interior insulation panels to the existing wall, and the plurality of interior insulation panels secured to the existing wall On the construction method of interior insulation panels of

  Conventionally, as a heat insulation repair method of the existing building, there is known a method of removing the existing inner wall and the heat insulating material and replacing it with a new heat insulating material, or a method of additionally sticking the heat insulating material from the inside while leaving the existing wall.

  It is proposed by patent document 1 that a heat insulating material is attached to the existing wall from the indoor side as an installation method of an interior heat insulation structure, and, then, attach an interior base material.

Unexamined-Japanese-Patent No. 2007-85131

  In the method described in Patent Document 1 described above, it is necessary to separately attach the heat insulating material and the interior base material, and it takes time and effort to construct, and there is a problem that the construction becomes complicated.

  Further, particularly in a cold region, there is a problem that the risk of internal condensation increases as the temperature difference between the outside and the room increases.

  The object of the present invention is that it can be easily installed, and therefore, it is possible to improve the time and complexity of installation when enhancing the heat insulation at the time of renovation or new construction of an existing building, and reduce the risk of internal condensation. It is an object of the present invention to provide a construction method of a lining insulation panel, a lining insulation wall and a lining insulation panel which can be performed.

An interior insulation panel according to the first aspect of the present invention is an interior insulation panel mounted from the indoor side of an existing wall of an existing building, and a moisture proof layer and an insulation material are laminated on a square interior base material. The moisture permeability of the heat insulating material is 0.00118 g / m · h · mmHg or more, and the moisture permeability of the whole heat insulating material and the moisture-proof layer is 0.0017 g / m · h · mmHg or less. The interior base material is a gypsum board having a thickness of 9.5 mm, the heat insulating material is a rectangle having the same dimensions as the interior base material, and having a thickness of 20 mm or 25 mm Ratio is 0.040 W / m · K or less according to JIS A 9511, the interior base material and the heat insulating material are fixed in advance with an adhesive via the moisture-proof layer, The laminate is the existing wall It said insulation material and the existing interior base material with is characterized in that the laminated so as to face each other.
The interior insulation panel according to the second aspect of the present invention is an interior insulation panel mounted from the indoor side of an existing wall of an existing building, and a non-moisture permeable surface material is applied to a square interior base material. It is a laminated body in which a heat insulating material having a moisture permeability of 0.00072 g / m · h · mmHg or less is laminated, the interior base material is a gypsum board having a thickness of 9.5 mm, and the heat insulation The material is a rectangular of the same size as the interior base material, the thermal conductivity is 0.040 W / m · K or less, and the foamed plastic heat insulating material described in JIS A 9511 has a thickness of 20 mm or 25 mm. The interior base material and the heat insulation material are fixed in advance with an adhesive via the non-moisture permeable surface material, and the laminate is the existing interior base material and the heat insulation material of the existing wall Are stacked to face each other. It is

The lining heat insulation panel according to the invention of the first reference example is a lining heat insulation panel attached from the indoor side of an existing wall of an existing building, and is a laminate in which a heat insulation material and a reinforcement material are laminated on a square interior base material. The interior base material is a gypsum board having a thickness of 9.5 mm, the heat insulating material is a vacuum heat insulating material, the reinforcing material is a foam, and the moisture permeability of the heat insulating material is 0 .0017 g / m · h · mmHg or less, the thermal conductivity is 0.040 W / m · K or less, and the thermal resistance value is 0.30 m ² · K / W or more; The present invention is characterized in that the existing interior base material and the heat insulating material are laminated so as to face each other.

The lining heat insulation panel according to the invention of the second reference example is a lining heat insulation panel attached from the indoor side of an existing wall of an existing building, and a square interior base material, a heat insulation material and a reinforcement material are moisture impermeable The heat insulating material is a vacuum heat insulating material, the reinforcing material is a foam, and the moisture permeability of the heat insulating material is 0.0017 g / m · h · mmHg Or less and having a thermal conductivity of 0.040 W / m · K or less and a thermal resistance of 0.30 m ² · K / W or more, and the non-moisture-permeable surface material is an aluminum foil-bonded non-woven fabric, aluminum hydroxide The laminated body is any one of a paper-clad aluminum foil, a polyethylene film-laminated composite face material, a metal plate and a metal foil, and the laminated body is laminated such that the existing interior base material of the existing wall and the heat insulating material face each other. It is characterized by .

 According to the lining heat insulation panel of this invention, since it is not necessary to perform construction of an interior base material and construction of a heat insulation separately, a lining heat insulation panel can be installed easily. Therefore, it is possible to improve the time and complexity of installation when the existing building is repaired to improve the heat insulation.

Moreover, the heat insulating material has a moisture permeability of 0.0017 g / m · h · mmHg or less, a thermal conductivity of 0.040 W / m · K or less, and a thermal resistance of 0.30 m ² · K / W or more. As a result, the heat insulation property can be improved, and furthermore, the effect of suppressing internal condensation, which has not been achieved by the prior art, can be obtained.

Such a heat insulating material can be obtained from the foamed plastic heat insulating material described in JIS A 9511. More preferred thermal insulation is phenolic foam and the preferred phenolic resin type is resole resin. The resol resin is sodium hydroxide, potassium hydroxide, calcium hydroxide as a catalyst of phenol or phenol compounds such as cresol, xylenol, paraalkylphenol, paraphenylphenol, resorcinol and aldehydes such as formaldehyde, furfural and acetaldehyde Or, it can be obtained by a chemical reaction in the presence of an aliphatic amine such as trimethylamine or triethylamine. In addition, it is preferable to use a form catcher having a density of 20 kg / m ² or more, a limiting oxygen index of 26% or more, and suppress generation of VOC.

  By using a phenolic resin foam, the above conditions can be achieved even when the thickness of the heat insulating material is about 20 mm, and thus, by using a heat insulating material having both a low moisture permeability and a low thermal conductivity. After thinning the inner heat insulation panel, the effect of suppressing internal condensation can be obtained.

  As the interior base material, wood based materials such as gypsum board, water resistant gypsum board, plywood, calcium silicate board, wood cement board and structural panel, particle board, sheathing board, MDF, hardboard, laminated fiber board, structural plywood etc. A board or rock wool sound absorbing board is used. As a heat insulating material, a foamed plastic type heat insulating material according to JIS A 9511, such as a phenol resin foam, a hard urethane foam, an extruded polystyrene foam, a bead polystyrene foam etc. Thermal insulation (eg glass wool, rock wool), vacuum insulation, silica airgel etc. are used. Usually, facing materials such as glass fiber mixed paper, cold paper, woven fabric, non-woven fabric, paper, liner paper, embossed paper, composite paper and the like are laminated on both sides of the heat insulating material. It is preferable that the heat insulation panel be one that can be easily processed by a cutter or a circular saw at the site.

  Fixation of the heat insulating material to the interior base material is carried out by an appropriate means such as mechanical fixation with fasteners such as tackers, screws, nails and screws, and adhesive fixation with adhesives, tapes and the like.

  Preferably, the heat insulating material is provided with a plurality of slits (first slits).

  With the first slits in the heat insulating material, the rigidity of the lining heat insulation panel is relaxed, and it becomes easy to cope with irregularities such as irregularities on the mounting surface and waving. By doing this, the gap between the existing wall and the inner heat insulation panel can be suppressed.

  The first slit may be provided in the longitudinal direction, in the lateral direction, or in both the longitudinal and lateral directions. The depth of the first slit is preferably 75 to 99% of the thickness of the heat insulating material.

  The said heat insulation panel WHEREIN: A moisture-proof layer may be provided between an interior base material and a heat insulation material.

  As a moisture-proof layer, the residential plastic-based moisture-proof film described in JIS A 6930 B is suitable for cold regions (I-II regions), and as general-purpose (III-IV regions), it is described in JIS A 6930 A Residential plastic-based moisture-proof films are suitable. Specifically, polyethylene film, polyvinyl chloride film, vinyl sheet non-woven polyethylene, bitumen-impregnated polypropylene foil, etc. may be mentioned. Alternatively, the shielding performance against humidity can be remarkably improved by laminating appropriate face materials. As a preferable face material, an aluminum foil sticking non-woven fabric, a metal plate, a metal foil etc. are illustrated. The moisture-proof layer (non-moisture-permeable surface) may be formed in a single layer, a partial layer or a plurality of layers inside the heat insulation panel.

  Moreover, in the said heat insulation panel, a face material may be laminated | stacked on the surface at the side of the interior base material of heat insulation, and the moisture permeability of heat insulation may be made into 0.00072 g / m * hmmHg or less.

  A heat insulating material with a moisture permeability of 0.00072 g / m · h · mmHg or less by using the above-mentioned phenolic resin foam as a heat insulating material and laminating an appropriate facing material (non-moisture-permeable facing material) You can get Examples of preferable facing materials include aluminum foil-bonded nonwoven fabrics, aluminum hydroxide paper-clad aluminum foils, polyethylene (PE) film-laminated composite facing materials, metal plates, metal foils and the like.

  A heat insulating panel with a moisture permeability of 0.00072 g / m · h · mmHg or less by using, for example, a phenol resin foam as a heat insulating material and laminating appropriate face materials (non-moisture permeable surface materials). (Hereafter, it may be called "a surface-coated lining insulation panel.") Can be used in the following forms.

  The facing heat insulation panel may be cut away leaving any face material between the pair of short sides and the pair of long sides of the periphery of the heat insulation material. The periphery may be cut into a square shape leaving a face material. It is necessary to provide a notch in order to fix to a crosspiece etc. when installing a heat insulation panel with a facing, but leaving the facing prevents the reduction of the moisture permeability in the notch. Can.

  In addition, in the case of the faced insulation heat insulating panel, a plurality of slits (second slits) may be provided in the heat insulation in the longitudinal direction or the lateral direction or in both directions, leaving the face material. It is necessary to provide a notch in order to fix to a crosspiece etc. when installing a heat insulation panel with a facing, but leaving the facing will prevent the deterioration of moisture resistance at the notch. it can.

  When the second slits are provided, it is preferable that a reinforcing material be fixed to each face material so as to fill a part or all of the second slits. The reinforcing material is wood, metal, resin, foam or the like.

  The lining heat insulating wall according to the present invention is formed of the existing wall of the existing building and the lining heat insulating panel of the above (claimed in any one of claims 1 to 4) laminated on the indoor side of the existing wall. It is characterized by the above-mentioned, and the said existing interior base material is a gypsum board, The gypsum board of the said existing interior base material is thicker than the gypsum board of the said interior heat insulation panel.

The construction method of the lining heat insulation panel by this invention is a construction method of the lining heat insulation panel which attaches the above-mentioned lining heat insulation panel (from any one of Claims 1 to 4) from the indoor side of the existing wall of the existing building. The existing interior base material is a gypsum board, and the gypsum board of the existing interior base material is thicker than the gypsum board of the inner insulation panel, and the joint of a plurality of adjacent inner insulation panels is the cross bar And fixing the lining insulation panel to the crosspiece so as to be on top.
In addition, the inner insulation wall of one aspect according to the invention of the third reference example is an inner insulation wall of an RC building provided with an inner insulation panel attached from the indoor side of a new construction or an existing wall, The inner heat insulation panel is a laminate of a rectangular interior base material and a rectangular heat insulation material, the interior base material is a gypsum board, and the heat insulation material is a laminate of facing materials on both sides. The heat insulating material has a moisture permeability of 0.0017 g / m · h · mmHg or less, a thermal conductivity of 0.040 W / m · K or less, and a thermal resistance of 0.30 m 2. The thickness of the heat insulating material is 20 mm or 25 mm, and the gypsum board as the interior base material and the phenolic resin foam as the heat insulating material are fixed by an adhesive. , In the long side of the inner insulation panel, A notch extending along the entire length of the inner heat insulation panel is formed such that the heat insulating material is cut out, and the phenol resin foam side of the inner heat insulation panel is attached to the wall surface of the RC building. It is characterized by
Further, the inner heat insulating wall according to the aspect of the invention of the fourth reference example is the inner heat insulating wall according to the above ( third reference example ), and the long side portion in which the notch portion is formed, The face material is laminated on the gypsum board as an interior base material.
Moreover, the construction method of the lining heat insulation wall of the aspect by the invention of a 5th reference example is a construction method which forms the lining heat insulation wall of said ( 3rd reference example or 4th reference example ), Comprising: The said heat insulation material The notch portion is formed by cutting out the heat insulating material in the long side portion of the inner heat insulating panel before construction in which the inner base material and the interior base material are rectangular with the same size. It is.

  According to the lining heat insulation panel of the present invention, since the square interior base material and the heat insulating material are laminated, there is no need to separately perform the construction of the interior base material and the heat insulating material, and therefore the inner lining The heat insulation panel can be easily installed, and the time and complexity of construction when the existing building is repaired to improve the heat insulation can be improved.

Furthermore, the heat insulating material has a moisture permeability of 0.0017 g / m · h · mmHg or less, a thermal conductivity of 0.040 W / m · K or less, and a thermal resistance of 0.30 m ² · K / W or more. By doing this, it is possible to improve the heat insulation and to suppress the risk of internal condensation.

  In addition, the facing is laminated on the surface of the heat insulating material on the interior base material side, and the moisture permeability of the heat insulating material is made 0.00072 g / m · h · mmHg or less, so that the surface is moisture proof. The improvement of the property is achieved, and by cutting out the heat insulating material so as to leave the facing material at the time of construction, it is possible to prevent the deterioration of the moisture resistance at the joint portion and the like.

FIG. 1 is a perspective view showing a first embodiment of a lining heat insulation panel according to the present invention. FIG. 2 is a horizontal cross-sectional view of a first embodiment of a lining insulation panel according to the invention. FIG. 3 is a horizontal cross-sectional view of a second embodiment of a lining insulation panel according to the invention. FIG. 4 is a horizontal cross-sectional view of a third embodiment of a lining insulation panel according to the invention. FIG. 5: is a perspective view which shows one preferable form at the time of using the lining heat insulation panel of 3rd Embodiment. FIG. 6 is a perspective view showing another preferred embodiment when using the lining heat insulation panel of the third embodiment. FIG. 7 is a perspective view showing another preferred embodiment when using the lining heat insulation panel of the third embodiment. FIG. 8 is a perspective view showing another preferred embodiment when using the lining heat insulation panel of the third embodiment. FIG. 9 is a perspective view showing an example of reinforcing the inner heat insulation panel in the form of FIG. 8; FIG. 10 is a vertical cross-sectional view showing a preferred embodiment of an inner insulation wall using the inner insulation panel in the form of FIG. FIG. 11 is a vertical cross-sectional view showing a preferred embodiment of an inner insulation wall using the inner insulation panel in the form of FIG. FIG. 12 is a vertical cross-sectional view showing a preferred embodiment of an inner insulation wall using the inner insulation panel in the form of FIG. FIG. 13 is a perspective view showing an example of a construction method of the lining heat insulation panel of the form of FIG. 8. FIG. 14 is an enlarged perspective view showing a jig used in the method of installing the lining heat insulation panel of FIG. FIG. 15: is a perspective view which shows one example of the construction method of the lining heat insulation panel of the form to FIGS. 5-7. FIG. 16 is an enlarged perspective view showing a jig used in the method of installing the lining heat insulation panel of FIG.

  Embodiments of the present invention will be described below with reference to the drawings. In the following description, the upper and lower sides refer to the upper and lower sides of FIG.

  FIG. 1 and FIG. 2 show a first embodiment of a lining heat insulating panel according to the present invention, wherein the lining heat insulating panel (11) comprises a rectangular interior base material (12) which is long vertically and an interior base material (12) and a rectangular heat insulating material (13) laminated. The heat insulating material (13) is provided with a plurality of slits (first slits) (14) extending in the lateral direction over the entire width of the heat insulating material (13).

  The slit (14) may only be cut with a cutter, or the heat insulator (13) may be removed so as to have a certain width (about 1 to 50 mm).

  The depth of the slits (14) is preferably 75 to 99% of the thickness of the heat insulating material (13). The installation interval of the slits (14) is about 100 to 1000 mm. The slits (14) may be provided so as to extend longitudinally in parallel along the entire length of the heat insulating material (13) instead of the illustrated one, or longitudinally in parallel along the entire length of the heat insulating material (13) Extending slits may be added to those illustrated.

  In the inner heat insulation panel (11) of this embodiment, the rigidity of the inner heat insulation panel (11) is relaxed by including a plurality of slits (14) in the heat insulation material (13). Therefore, it becomes easy to cope with unevenness, such as the unevenness of a mounting surface (the wall surface of the existing wall, etc.), and waving. By doing this, it is possible to suppress the gap between the existing wall and the lining heat insulation panel (11) in the case of being attached to the existing wall.

  The lining insulation panel (11) according to the invention is further configured to prevent internal condensation.

  Table 1 shows the analysis results of internal condensation of the conventional product. The conventional product has the same configuration as that of FIG. 2 and has a gypsum board (thickness 9.5 mm) as an interior base material and a foamed plastic-based heat insulating material (thickness 20 mm). At the time of this analysis, the composition of the existing wall is a gypsum board (thickness 12.5 mm) as an existing interior base material, a hollow layer (thickness 60 mm), glass wool 10k (thickness 40 mm) as an existing heat insulating material and an existing exterior base material. It is assumed to be made of structural plywood (thickness 9.5 mm). The temperature / humidity of the outside air is 0.9 ° C./70%, the temperature / humidity of the room is 10 ° C./70%, the temperature of each component, the water vapor pressure (unit: Pa) and the saturated water vapor pressure (The unit is Pa) is calculated, and the presence or absence of condensation (without: ○, with: ×) is obtained based on the calculation result.

上記結果から、従来品では、グラスウールの部分で結露が発生することが分かる。

From the above results, it can be seen that condensation occurs in the glass wool portion in the conventional product.

In the above conventional product, the moisture permeability of the heat insulating material is 0.0018 g / m · h · mmHg. The moisture permeability is determined by the cup method (25 ° C., 50% RH) of “Method for measuring moisture permeability of building material” in JIS A 1324.
Example 1
Focusing on the above moisture permeability, it has a gypsum board (thickness 9.5 mm) as an interior base material (12) and a foamed plastic heat insulator (13) (thickness 20 mm). The same evaluation was performed using the same heat insulation panel (11) having a moisture permeability of 0.0017 g / m · h · mmHg as the heat insulating material (13). The results are shown in Table 2.

上記結果から、断熱材(13)の透湿率を０．００１７ｇ／ｍ・ｈ・ｍｍＨｇ以下とすることで、結露の発生を防止できることが分かる。
実施例２
透湿率が０．００１８ｇ／ｍ・ｈ・ｍｍＨｇの断熱材を使用して、図３に示すように、内装下地材(12)としての石膏ボード（厚み９．５ｍｍ）と発泡プラスチック系断熱材(13)（厚み２０ｍｍ）とを有しており、内装下地材(12)と発泡プラスチック系断熱材(13)との間に防湿気密フィルム（防湿層）(22)（厚み０．１ｍｍ）を介在させた内張断熱パネル(21)を製作した。この内張断熱パネル(21)について同様の評価を行った結果を表３に示す。

From the above results, it can be seen that the occurrence of condensation can be prevented by setting the moisture permeability of the heat insulating material (13) to 0.0017 g / m · h · mmHg or less.
Example 2
Using a heat insulating material with a moisture permeability of 0.0018 g / m · h · mmHg, as shown in FIG. 3, a gypsum board (thickness 9.5 mm) as an interior base material (12) and a foamed plastic heat insulating material (13) (Thickness 20 mm), moisture-proof and dense film (moisture-proof layer) (22) (thickness 0.1 mm) between interior base material (12) and foamed plastic heat insulation material (13) An interposed inner insulation panel (21) was produced. Table 3 shows the results of the same evaluation performed on the lining heat insulation panel (21).

上記結果から、断熱材(15)の透湿率が０．００１８ｇ／ｍ・ｈ・ｍｍＨｇ以上であっても、適宜な防湿気密フィルム（防湿層）(22)を介在させることで、結露の発生を防止できることが分かる。
実施例３
図４に示すように、内装下地材(12)としての石膏ボード（厚み９．５ｍｍ）と発泡プラスチック系断熱材(32)（厚み２０ｍｍ）とを有しており、断熱材(32)を防湿性が優れた非透湿系の面材(32a)付きのものとして、内張断熱パネル(31)を製作し、この内張断熱パネル(31)について同様の評価を行った結果を表４に示す。表４において、「フェノバボード（登録商標）」とされているのは、積水化学工業製のフェノール樹脂発泡体で、面材(32a)付きとされることで、透湿率が０．０００７２ｇ／ｍ・ｈ・ｍｍＨｇとされている。

From the above results, even when the moisture permeability of the heat insulating material (15) is 0.0018 g / m · h · mmHg or more, occurrence of dew condensation occurs by interposing an appropriate moisture-proof dense film (moisture-proof layer) (22) It can be seen that you can prevent
Example 3
As shown in FIG. 4, it has a gypsum board (thickness 9.5 mm) as an interior base material (12) and a foamed plastic heat insulating material (32) (thickness 20 mm), and the heat insulating material (32) is moisture proof The inner heat insulation panel (31) was manufactured as a non-moisture-permeable facing (32a) with excellent elasticity, and the same evaluation was performed on the inner heat insulation panel (31). Show. In Table 4, it is the phenol resin foam made by Sekisui Chemical Co., Ltd. that is referred to as "Fenoba board (registered trademark)", and it is considered that the facing material (32a) is attached, and the moisture permeability is 0.00072 g / m.・ It is considered h · mmHg.

表５は、表１に示した従来品を基準にして、発泡プラスチック系断熱材（透湿率が０．００１８ｇ／ｍ・ｈ・ｍｍＨｇで、熱伝導率は０．０４Ｗ／ｍＫ）の厚みを２０ｍｍから２５ｍｍに、中空層の厚みを６０ｍｍから４０ｍｍに、グラスウール１０ｋの厚みを４０ｍｍから６０ｍｍにそれぞれ変更し、さらに、透湿防水シート（厚み１．０ｍｍ）を追加した従来品について、同様の評価を行った結果を示している。なお、表５においては、外気（表面熱伝達抵抗０．０４ｍ²Ｋ／Ｗ）の温度／湿度が０．９℃／７０％であり、室内（表面熱伝達抵抗０．１１ｍ²Ｋ／Ｗ）の温度／湿度が１０℃／７０％であるとし、表１〜表４と同様に、各構成部材の温度、水蒸気圧（単位はＰａ）および飽和水蒸気圧（単位はＰａ）を計算し、この計算結果に基づいて、結露の有無（無し：○、有り：×）を求めている。

Table 5 is based on the conventional product shown in Table 1 and has a thickness of a foamed plastic-based heat insulating material (a moisture permeability of 0.0018 g / m · h · mmHg and a thermal conductivity of 0.04 W / mK). Similar evaluations for conventional products with the thickness of the hollow layer changed from 20 mm to 25 mm, the thickness of the glass wool 10k changed from 40 mm to 60 mm from 60 mm to 40 mm, and a moisture-permeable waterproof sheet (thickness 1.0 mm) added Shows the result of In Table 5, the temperature / humidity of outside air (surface heat transfer resistance 0.04 m ² K / W) is 0.9 ° C./70%, and indoor (surface heat transfer resistance 0.11 m ² K / W) Temperature / humidity is 10 ° C./70%, and the temperature, water vapor pressure (unit: Pa) and saturated water vapor pressure (unit: Pa) of each component are calculated in the same manner as in Tables 1 to 4. Based on the calculation result, the presence or absence of condensation (none: ○, presence: x) is determined.

上記結果から、従来品（すなわち、発泡プラスチック系断熱材の透湿率が０．００１８ｇ／ｍ・ｈ・ｍｍＨｇ）では、グラスウールの部分で結露が発生することが分かる。
実施例４
上記の従来品に対し、断熱材(13)として透湿率が０．００１７ｇ／ｍ・ｈ・ｍｍＨｇ（熱伝導率は０．０４Ｗ／ｍＫ）の内張断熱パネル(11)を使用して、同様の評価を行った。その結果を表６に示す。

From the above results, it can be seen that in the case of the conventional product (that is, the moisture permeability of the foamed plastic-based heat insulating material is 0.0018 g / m · h · mmHg), condensation occurs in the glass wool portion.
Example 4
In contrast to the above-mentioned conventional products, using the inner heat insulation panel (11) having a moisture permeability of 0.0017 g / m · h · mmHg (heat conductivity of 0.04 W / mK) as the heat insulating material (13), Similar evaluations were made. The results are shown in Table 6.

上記結果から、断熱材(13)の透湿率を０．００１７ｇ／ｍ・ｈ・ｍｍＨｇ以下とすることで、結露の発生を防止できることが分かる。
実施例５
透湿率が０．００１８ｇ／ｍ・ｈ・ｍｍＨｇ（熱伝導率は０．０４Ｗ／ｍＫ）の断熱材を使用して、図３に示すように、内装下地材(12)と発泡プラスチック系断熱材(13)との間に防湿気密フィルム（防湿層）(22)（厚み０．１ｍｍ）を介在させた内張断熱パネル(21)を製作した。この内張断熱パネル(21)について同様の評価を行った結果を表７に示す。

From the above results, it can be seen that the occurrence of condensation can be prevented by setting the moisture permeability of the heat insulating material (13) to 0.0017 g / m · h · mmHg or less.
Example 5
As shown in FIG. 3, using a heat insulating material having a moisture permeability of 0.0018 g / m · h · mmHg (heat conductivity of 0.04 W / mK), the interior base material (12) and the foamed plastic insulation A lining heat insulation panel (21) was produced in which a moisture-proof and dense film (moisture-proof layer) (22) (thickness: 0.1 mm) was interposed between the material (13). Table 7 shows the results of the same evaluation performed on the lining heat insulation panel (21).

上記結果から、断熱材(15)の透湿率が０．００１８ｇ／ｍ・ｈ・ｍｍＨｇ以上であっても、適宜な防湿気密フィルム（防湿層）(22)を介在させることで、結露の発生を防止できることが分かる。
実施例６
図４に示すように、断熱材(32)を防湿性が優れた非透湿系の面材(32a)付きのものとして、内張断熱パネル(31)を製作し、この内張断熱パネル(31)について同様の評価を行った結果を表８に示す。表８において、「フェノバボード（登録商標）」とされているのは、積水化学工業製のフェノール樹脂発泡体で、面材(32a)付きとされることで、透湿率が０．０００７２ｇ／ｍ・ｈ・ｍｍＨｇ（熱伝導率は０．０１９Ｗ／ｍＫ）とされている。

From the above results, even when the moisture permeability of the heat insulating material (15) is 0.0018 g / m · h · mmHg or more, occurrence of dew condensation occurs by interposing an appropriate moisture-proof dense film (moisture-proof layer) (22) It can be seen that you can prevent
Example 6
As shown in FIG. 4, an inner insulation panel (31) is manufactured by using a heat insulating material (32) with a non-moisture-permeable facing (32a) having excellent moisture resistance, and this inner insulation panel ( Table 8 shows the results of the same evaluation of 31). In Table 8, it is the phenol resin foam made by Sekisui Chemical Co., Ltd. that is referred to as "Fenoba board (registered trademark)", and it is considered that the facing material (32a) is attached, and the moisture permeability is 0.00072 g / m.・ H · mmHg (heat conductivity is 0.019 W / mK).

上記結果から、面材(32a)を適宜なもの、すなわち、非透湿系面材として、断熱材(32)自体の透湿率を小さくすることにより、防湿気密フィルム(22)を介在させなくても、結露の発生を防止できることが分かる。好ましい面材(32a)としては、アルミニウム箔張付け不織布、水酸化アルミニウム紙張アルミニウム箔、ポリエチレン（ＰＥ）フィルム積層複合面材、織布ポリエチレン、ビチューメン含浸ポリプロピレンフォイル、金属板、金属箔などが例示される。

From the above results, the surface material (32a) is suitably used, that is, the moisture-proof film (22) is not interposed by reducing the moisture permeability of the heat insulating material (32) itself as a non-moisture-permeable surface material. However, it can be seen that the occurrence of condensation can be prevented. Examples of preferable facing materials (32a) include aluminum foil-bonded nonwoven fabric, aluminum hydroxide paper-clad aluminum foil, polyethylene (PE) film-laminated composite facing material, woven polyethylene, bitumen-impregnated polypropylene foil, metal plate, metal foil, etc. .

  FIGS. 5 to 7 show a preferred embodiment when using the heat insulator (32) with the facing (32a) shown in FIG.

  In FIG. 5, the heat insulating material (32) is cut away at the upper and lower edges (one pair of short sides) of the inner heat insulating panel (31), leaving the face material (32a), whereby the inner heat insulating panel is obtained. A laterally extending notch (41) is formed over the entire width of (31).

  In FIG. 6, the heat insulating material (32) is cut off leaving the face material (32a) at the left and right edges (one pair of long sides) of the inner heat insulating panel (31), whereby the inner heat insulating panel is obtained. A notch (42) extending in the vertical direction is formed over the entire length of (31).

  In FIG. 7, the periphery of the heat insulating material (32) is cut in a square shape leaving the face material (32 a) at the periphery of the inner heat insulating panel (31), whereby the inner heat insulating panel (31) A rectangular shaped notch (43) is formed in the peripheral edge of the case when viewed from the front.

  FIG. 8 shows a preferred embodiment in providing a plurality of slits (second slits) (44) in the inner insulation panel (31) shown in FIG. In the figure, the plurality of slits (44) extend in the lateral direction over the entire width of the heat insulating material (32), and are provided leaving the face material (32a).

  As shown in FIG. 9, a reinforcing material (45) may be fitted into the slit (44) provided as described above. The reinforcing material (45) may be the same material (wood) as the crosspiece, may be the same material as the heat insulating material (32) (for example, a phenolic resin foam), or may be a material other than these. . Also, the reinforcing material (45) may be fitted into only a part of the slit (44), or the reinforcing material (45) may be fitted into the entire slit (44). The reinforcing material (45) is fixed to the face material (32a) by an appropriate means such as an adhesive or a screw. Alternatively, it is directly fixed to the existing base by an appropriate means such as an adhesive or a screw.

  FIG. 10 shows a preferred embodiment of the inner heat insulation wall (30) configured by installing the inner heat insulation panel (31) processed as shown in FIG. 5 on the existing wall (50). In the figure, the inner insulation wall (30) is formed by arranging the inner insulation panels (31) vertically adjacent to each other. By using the lining heat insulation panel (31) shown in FIG. 5, in the joint portion (33) of the lining heat insulation panels (31) adjacent to the upper and lower sides, the heat insulation material (32) is notched and the face material ( 32a) is exposed. Then, the crosspieces (48) fixed to the existing wall (50) straddle the adjacent facings (32a) in the joint portion (33) and the notch (41) adjacent in the joint portion (33) ) Is completely closed. Thus, the lining heat insulating wall (30) is formed in a state where the facings (32a) are continuous with each other.

  According to this embodiment, since the crosspieces (48) are continuous at the joint of the inner insulation panel (31), the joint of the inner insulation panel (31) becomes smooth even if the existing base is uneven. Furthermore, it prevents being stepped when finishing the cloth etc. In addition, the installation of crosspieces (48) leads to an improvement in the workability. Further, by fixing the crosspieces (48) to the existing foundation or the pillars and studs in this way, the inner heat insulation panel (31) can be fixed more firmly when fixed to the crosspieces (48). The crosspieces (48) may be made of various resins such as metal and polyvinyl chloride other than wood.

  In addition, in FIG. 10, although it presupposed that a lining heat insulation panel (31) adjoins and arrange | positions up and down, it is the same, even when adjacently arrange | positioned adjacently.

  FIG. 11 shows a preferred embodiment of the inner heat insulation wall (30) configured by installing the inner heat insulation panel (31) processed as shown in FIG. 8 on the existing wall (50). In the figure, the inner heat insulation wall (30) is formed by arranging a plurality of inner heat insulation panels (31) provided with slits (44). By using the lining heat insulation panel (31) shown in FIG. 8, the heat insulation material (32) is notched at the part where the slits (44) are provided in each lining heat insulation panel (31) The face material (32a) is exposed. And, a crosspiece (48) fixed to the existing wall (50) is provided so as to be in contact with the exposed face material (32a) and to completely close the slit (44). After this, the inner heat insulation panel (31) is fixed to the existing wall (50).

  FIG. 12 shows a preferred embodiment of the inner insulation wall (30) configured by installing the inner insulation panel (31) processed as shown in FIG. 9 on the existing wall (50). In the figure, the inner heat insulation wall (30) is formed by arranging a plurality of inner heat insulation panels (31) provided with slits (44). By using the lining heat insulation panel (31) shown in FIG. 9, a reinforcement (45) is arrange | positioned in the part in which the slit (44) is provided in each lining heat insulation panel (31). In the illustrated example, the thickness of the reinforcing material (45) is half of the depth of the slit (44), and the space portion remains in the slit (44). And, a crosspiece (49) fixed to the existing wall (50) is provided so as to be in contact with the reinforcing member (45) and to completely close the space portion remaining in the slit (44). After this, the inner heat insulation panel (31) is fixed to the existing wall (50).

  In the embodiment shown in FIG. 5 to FIG. 12, the work of cutting out the heat insulating material (32) is necessary leaving the face material (32a), and to do this work, it is shown in FIG. 13 to FIG. It is preferred to use such jigs (51) (56).

  FIG. 13 shows a preferred construction method in the case of providing the slits (44), and a dedicated jig shown in an enlarged manner in FIG. 14 is used as the jig (51).

  The jig (51), as shown in FIG. 14, has a U-shaped blade (52) having a bottom (52a) and a pair of side walls (52b) and an upper surface of each side wall (52b). It has the guide part (53) each provided, and the reverse U-shaped handle part (54) attached to each guide part (53). The blade (52) and the pair of guides (53) are integrally formed of sheet metal. In the jig (51), both end surfaces in the length direction of the bottom wall (52a) and the pair of side walls (52b) are used as cutting edges, and the handle (54) is used to hold the cutting edge (52). By moving in the longitudinal direction, the heat insulating material (32) can be cut into a square in cross section. The height of the side wall (52b) of the blade portion (52), that is, the distance from the lower surface of the bottom wall (52a) to the lower surface of the guide portion (53) is the portion of the heat insulator (32) excluding the face material (32a) It is made equal to the thickness.

  In FIG. 13, as shown in FIG. 13 (a), a jig (51) is used to guide the guide (53) to the surface (32b) of the heat insulating material (32) and the bottom wall (52) of the blade (52). By moving the jig (51) in a state where each 52a) is placed along the face material (32a), a required portion of the heat insulating material (32) can be cut out leaving the face material (32a). Thus, as shown in FIG. 13 (b), the slit (44) can be formed leaving the face material (32a).

  FIG. 15 shows a preferred construction method in the case where the peripheral portion of the heat insulating material (32) is not cut out, and a dedicated jig shown enlarged in FIG. 16 is used as the jig (56).

  The jig (56), as shown in FIG. 16, has a bottom portion (57a) and a blade portion (57) having an L-shaped cross section, which is formed of a side wall (57b) extending upward from one side of the bottom wall (57a) A first guiding portion (58) provided on the upper surface of the side wall (57b) opposite to the bottom wall (57a), and a second guiding portion (59) extending downward from the other side of the bottom wall (57a) And an inverted U-shaped handle (60) attached to the first guide (58). The blade portion (57) and the two guide portions (58) (59) are integrally formed of a thin metal plate. In the jig (56), both end surfaces in the length direction of the bottom wall (57a) and the side wall (57b) are used as cutting edges, and the handle portion (60) is held to lengthen the blade portion (57) The heat insulator (32) can be cut into a square in cross section by moving it to The height of the side wall (57b) of the blade portion (57), that is, the distance from the lower surface of the bottom wall (57a) to the lower surface of the first guide portion (58), excludes the face material (32a) of the heat insulator (32) It is made equal to the thickness of the part.

  In FIG. 15, as shown in FIG. 15 (a), using the jig (56), the first guide (58) is placed on the surface (32b) of the heat insulator (32), and the second guide (59) By moving the jig (56) while keeping the bottom wall (57a) of the blade portion (57) along the face material (32a) on the side surface (12a) of the interior base material (12) The required part of the material (32) can be cut away leaving the face material (32a). Thus, as shown in FIG. 16B, notches (41) in the peripheral portion can be formed (as well as the notches (42) and (43)) except for the face material (32 a).

(11) Inner insulation panel
(12) Interior base material
(13) Thermal insulation
(21) Inner insulation panel
(22) Moisture-proof and dense film (moisture-proof layer)
(30) Inner insulation wall
(31) Inner insulation panel
(32) Foamed plastic insulation
(32a) face material
(33) Joint area
(41) (42) (43) Notched part
(45) Reinforcement
(48) (49) Crosspiece
(50) Existing wall

Claims (6)

An interior insulation panel mounted from the indoor side of the existing wall of the existing building,
A moisture-proof layer and a heat insulating material are laminated on a rectangular interior base material, and the heat insulating material has a moisture permeability of 0.0018 g / m · h · mmHg or more, and the permeability of the heat insulating material and the moisture-proof layer as a whole. It is a laminate whose moisture content is 0.0017 g / m · h · mmHg or less,
The interior base material is a plaster board having a thickness of 9.5 mm,
The heat insulating material is a foamed plastic heat insulating material according to JIS A 9511 which is a rectangle having the same dimensions as the interior base material, having a thickness of 20 mm or 25 mm, and a thermal conductivity of 0.040 W / m · K or less.
The interior base material and the heat insulating material are fixed in advance by an adhesive via the moisture-proof layer,
An interior heat insulation panel characterized in that the laminate is laminated so that the existing interior base material of the existing wall and the heat insulating material face each other.   The inner heat insulation panel according to claim 1, wherein the moisture proof layer is a plastic household moisture proof film described in JIS A 6930 A or B. An interior insulation panel mounted from the indoor side of the existing wall of the existing building,
A laminated body in which a heat insulating material having a moisture- impermeable surface material and a moisture permeability of 0.00072 g / m · h · mmHg or less is laminated on a rectangular interior base material,
The interior base material is a plaster board having a thickness of 9.5 mm,
The heat insulating material is a rectangular shape having the same dimensions as the interior base material, and the heat conductivity is 0.040 W / m · K or less, and the foamed plastic heat insulation according to JIS A 9511 having a thickness of 20 mm or 25 mm. Containing materials,
The interior base material and the heat insulating material are fixed in advance by an adhesive via the non-moisture-permeable surface material,
An interior heat insulation panel characterized in that the laminate is laminated so that the existing interior base material of the existing wall and the heat insulating material face each other. The non-moisture-permeable type surface material, aluminum foil pasted nonwoven, aluminum hydroxide paper Zhang aluminum foil, polyethylene film laminated composite facing material, according to claim 3, characterized in that any of a metal plate and a metal foil Interior insulation panels. An interior insulation wall formed of an existing wall of an existing building and the interior insulation panel according to any one of claims 1 to 4 laminated on the indoor side of the existing wall,
An interior insulation wall characterized in that the existing interior foundation material is gypsum board, and the gypsum board of the existing interior foundation material is thicker than the gypsum board of the interior insulation panel. It is a construction method of the lining insulation panel which attaches the lining insulation panel according to any one of claims 1 to 4 from the indoor side of the existing wall of the existing building,
The existing interior base material is gypsum board, and the gypsum board of the existing interior base material is thicker than the gypsum board of the inner insulation panel,
Securing the lining insulation panel to the cross bar so that the joints of the adjacent plurality of lining insulation panels are on the cross bar;
A method of constructing a lining insulation panel characterized by having:

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