JP6555882B2 - Panel unit for external insulation and external insulation method - Google Patents

Description

  The present invention relates to an outer insulation, and more particularly, to an outer insulation panel unit and an outer insulation method that can contribute to shortening the work period by reducing work on site.

  The external thermal insulation method is a thermal insulation method that can provide a highly insulated and highly airtight building by covering the entire building with a heat insulating material. In the conventional external thermal insulation method, the foundation for fixing the outer wall material is made by screwing the structural plywood to the pillars and interposts, pasting the thermal insulation board material, stretching the moisture permeable waterproof sheet, and finally the trunk edge At least four work processes, such as fixing, are required, and there are many work processes on site, and it was difficult to seek cost reduction by shortening the work period due to a shortage of human resources. In particular, skill level is required to ensure high airtightness of the outer insulation, and the shortage of human resources is one of the serious problems.

  In order to solve such a problem, an invention relating to an external thermal insulation board for a wooden building for reducing the work process and simplifying the work has been proposed.

  For example, in JP-A-2003-336329, a plate-shaped foamed resin heat insulating material is provided with a long groove portion in the longitudinal direction, and a trunk edge thicker than a general trunk edge size is inserted into the groove section. An outer heat insulating board has been proposed (Patent Document 1). According to this Patent Document 1, the outer thermal insulation board can accurately position the body edge and fasten the screws when constructing, and attach a moisture permeable waterproof sheet by applying a moisture permeable waterproof tape to the joint portion. It is said that it becomes possible to form a waterproof layer without performing work.

JP 2003-336329 A

  However, in the invention described in Patent Document 1, since the trunk edge is made of wooden material having low contractibility, it is difficult to fit into the groove portion of the foamed resin heat insulating material. For this reason, it is necessary to provide a clearance of 1 mm as the width of the groove portion as compared with the width of the trunk edge. Therefore, since there is always a gap between the groove and the trunk edge, the heat insulation is reduced, and rainwater or the like may enter. Moreover, since the thickness of the heat insulating material of a groove part is thin compared with the thickness of other heat insulating materials, there exists a problem that a heat insulating layer will become non-uniform | heterogenous.

  By the way, in order to protect purchasers and buyers of newly-built houses, the Act on Enforcement of Warranty (A Law Concerning the Enforcement of Responsibility for Specific Housing Warranty, etc., which came into effect on October 1, 2009) has been enacted. Under the collateral performance law, contractors and sellers of newly-built homes are obliged to take out insurance or deposit security deposits. In the insurance, the seller of a new house concludes an insurance contract with an insurance company, and it has been found that the main part is the structural strength of the house and the part that prevents the intrusion of rainwater. If the house does not meet the load-bearing performance or waterproof performance, the repair cost will be paid by insurance.

  For this reason, insurance companies are demanding that a moisture-permeable waterproof sheet be stretched on the outdoor side of the heat insulating material as a design and construction standard in the external insulation method. On the other hand, for specifications that are judged to have performance equal to or better than the design and construction standards, insurance is permitted without a moisture-permeable waterproof sheet. If it is not necessary to stretch the moisture permeable waterproof sheet, it is more preferable because it leads directly to shortening the construction period and cost. Therefore, there is a high need for a new outer insulation panel unit and an outer insulation method that has a high performance for preventing rainwater from entering such that insurance participation is permitted without providing a moisture permeable waterproof sheet.

  The present invention has been made in order to solve such problems, and can shorten the work period and reduce the cost, and can improve heat insulation performance and airtight performance without applying a moisture permeable waterproof sheet. The objective is to provide an external thermal insulation panel unit and an external thermal insulation method that can be applied with an insurance contract based on the collateral performance law.

  The panel unit for heat insulation according to the present invention is a panel unit for heat insulation used for outer heat insulation, and a plate-like heat insulating material is bonded to a plate material such as a wooden board, an inorganic material, and a resin board. And a heat insulating composite panel in which long grooves on the surface of the plate-shaped heat insulating material are formed at intervals corresponding to the arrangement intervals of the pillars and / or inter-columns of the building, and are connected to the pillars and / or the inter-columns of the building And a heat insulating composite body edge formed by sticking a rod-shaped heat insulating material formed in a size that can be fitted into the groove portion of the heat insulating composite panel.

  Moreover, as one aspect of the present invention, the rod-shaped heat insulating material may be formed with slits for insertion into a narrow groove in the depth direction of the groove along the longitudinal direction.

  Further, the external insulation method according to the present invention is an external insulation method in which a thermal insulation layer is provided on a building using the external thermal insulation panel unit, and is predetermined according to the positions of the pillars and / or the studs of the building. A heat insulating panel fixing step of bringing the plate material of the heat insulating composite panel into contact with the column and / or the inter-column so that the groove portion is disposed, and screwing to the corresponding column or the inter-column from the bottom of the groove portion; An airtight waterproofing process for applying an airtight waterproof tape to a joint portion between the heat insulating composite panels, and a rod-shaped heat insulating material of a heat insulating composite body edge is inserted into the groove of the heat insulating composite panel, and the pillars or the intermediate pillars from above the body edge And a heat-insulating barrel edge fixing step for screwing.

  According to the present invention, the construction period can be shortened and the cost can be reduced, and the insurance contract based on the collateral guarantee method can be applied without increasing the heat insulating performance and the airtight performance and applying the moisture permeable waterproof sheet.

It is a figure which shows one Embodiment of the building structure constructed | assembled by the panel unit for external heat insulation which concerns on this invention, and an external heat insulation construction method. It is a partially expanded view which shows the building structure constructed | assembled by the panel unit for external insulation and the external insulation method in this embodiment. It is a front view which shows the heat insulation composite panel in this embodiment. It is sectional drawing in the 2A-2A line of FIG. It is the (a) front view, (b) back view, (c) top view, (d) left end view which shows the heat insulation composite trunk edge in this embodiment. (A) Front view, (b) Rear view, (c) showing a rod-shaped heat insulating material having slits for insertion formed obliquely along the longitudinal direction as another example of the heat insulating composite body edge in the present embodiment. It is a top view. (A) Front view, (b) Rear view, (c) Top view showing a rod-shaped heat insulating material having an insertion slit inclined with respect to the depth direction of the groove as another example of the heat insulating composite body edge in the present embodiment. is there. (A) Front view, (b) Rear view, (c) Top view showing a rod-shaped heat insulating material having a wavy fitting slit along the longitudinal direction as another example of the heat insulating composite body edge in the present embodiment. is there. It is a figure which shows the state which fixed the heat insulation composite panel to the pillar and the stud in the heat insulation panel fixation process in this embodiment. It is sectional drawing which shows the state which screwed the heat insulation composite panel to the pillar and the stud in the heat insulation panel fixing process in this embodiment. It is a figure which shows the state which affixed the airtight waterproof tape on the joint part in the airtight waterproof process in this embodiment. It is a figure which shows the state which inserted the heat insulation composite body edge in the groove part in the heat insulation body edge fixing process in this embodiment. It is sectional drawing which shows the state which screwed the heat insulation composite trunk edge to the pillar and the stud in the heat insulation trunk edge fixing process in this embodiment. It is a figure which shows the state after performing the heat insulation trunk edge fixing process in this embodiment.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment of an outer panel insulating panel unit 1 and an outer panel thermal insulation method according to the present invention will be described with reference to the drawings.

  The external thermal insulation panel unit 1 in the present embodiment is a heat insulating layer of the building 4 by being screwed to the pillar 41 or the inter-column 42 of the building 4, and as shown in FIG. 1 and FIG. 21 has a heat insulating composite panel 2 formed by bonding a plate-like heat insulating material 22 to 21 and a heat insulating composite body edge 3 fitted into a groove 23 of the heat insulating composite panel 2.

  As shown in FIGS. 3 and 4, the heat insulating composite panel 2 is a panel in which a heat insulating material 22 formed in a plate shape is bonded to a plate material 21 made of a material such as a wooden board, an inorganic material, and a resin board. Shaped composite material. The heat insulating composite panel 2 is manufactured in advance in a factory in order to eliminate the necessity of performing an operation process for forming a base for fixing the outer wall material 43 of the building 4 on site.

  The plate material 21 is made of plywood, oriented strand board (OSB), medium density fiberboard (MDF), wood panel such as concrete panel, inorganic material formed of non-combustible material, plastic, etc. Various materials such as a resin plate can be appropriately selected. In this embodiment, a wooden structural plywood is used.

  The plate-like heat insulating material 22 is a plate material having heat insulating performance, and forms a heat insulating layer on the outer surface of the plate material 21 by being bonded to the plate material 21 with an adhesive or the like. The plate-like heat insulating material 22 in the present embodiment is made of foamed plastic made of beaded polystyrene foam or extruded polystyrene foam, and has a thickness according to required heat insulating performance, for example, a thickness of about 20 mm to 120 mm. It is configured. The plate-like heat insulating material 22 is not limited to a plastic heat insulating material, and may be appropriately selected from mineral heat insulating materials such as glass wool board, natural heat insulating materials such as wood fiber board, and the like. .

  In addition, a long groove portion 23 is formed on the surface of the plate-shaped heat insulating material 22, which serves as a guide for the position where the heat insulating composite panel 2 is screwed to the column 41 or the intermediary column 42 of the building 4. Then, the heat insulating composite body edge 3 is inserted from above. As shown in FIG. 4, the groove 23 is formed to be thinner than other portions of the plate-like heat insulating material 22. In the present embodiment, the groove 23 is formed to a thickness of about 5 mm to 10 mm.

  The groove portions 23 are formed at intervals corresponding to the positions of the columns 41 and the inter-columns 42 of the building 4. The groove part 23 in this embodiment is formed every 910 mm used as the space | interval of the pillar 41 of the left-right direction according to the architectural dimension of a Japanese house, or every 455 mm used as the space | interval of the intermediate column 42 in the meantime. In the present embodiment, as shown in FIGS. 1 and 3, the groove 23 is also formed at a position at the upper end and the lower end corresponding to the cross member such as the foundation beam 45. In addition, the space | interval of the groove part 23 is not limited for every 910 mm or every 455 mm, You may select suitably according to the structure and shape of the building 4, and opening parts 44, such as a window and a door.

  Next, the heat insulating composite body edge 3 will be described. As shown in FIGS. 1 and 2, the heat insulating composite body edge 3 is fitted into the groove portion 23 of the heat insulating composite panel 2 and is screwed to the pillar 41 or the intermediate pillar 42 to fix the outer wall material 43. In the present embodiment, as shown in FIG. 5, a long barrel edge 31 and a rod-like heat insulating material 32 bonded to the barrel edge 31 with an adhesive or the like are provided. The heat insulating composite body edge 3 is manufactured in advance in a factory or the like, similarly to the heat insulating composite panel 2.

  The trunk edge 31 serves as a base for screwing the outer wall member 43. In the present embodiment, the trunk edge 31 is composed of a wooden square member formed in a long shape so as to extend along the columns 41 and the studs 42. . The trunk edge 31 is not limited to wood, and may be appropriately selected from materials that can screw the outer wall material 43.

  The rod-shaped heat insulating material 32 is a heat insulating material having heat insulating performance, and is inserted into the groove portion 23 formed to be thin so that the thickness of the heat insulating layer and the heat insulating effect are equal to those other than the groove portion 23. Is. The rod-shaped heat insulating material 32 in the present embodiment is made of foamed plastic, like the plate-shaped heat insulating material 22, and has a size that can be fitted into the groove 23 and is formed in a long shape according to the groove 23. ing. The rod-shaped heat insulating material 32 is not limited to a plastic heat insulating material, and may be appropriately selected from mineral heat insulating materials such as glass wool board, natural heat insulating materials such as wood fiber board, and the like.

  The rod-shaped heat insulating material 32 is formed with a slit 33 for insertion along the longitudinal direction. The insertion slit 33 makes it easier to fit the rod-like heat insulating material 32 by contracting in the width direction of the left and right when fitting into the groove 23 of the plate-like heat insulating material 22, and fits into the groove 23 when recovered from the shrinkage. It comes to fit. In addition, the insertion slit 33 may be a drainage channel for discharging rainwater that has entered between the groove portion 23. The insertion slits 33 are formed in a narrow groove shape in the depth direction of the groove portion 23 along the longitudinal direction. In the present embodiment, three insertion slits 33 are formed. Among these, one insertion slit 33 is formed from the surface to which the body edge 31 is bonded toward the back surface side, and the two insertion slits 33 are formed from the back surface side to the body edge 31 side. It is formed towards.

  The number of insertion slits 33 is not particularly limited, and may be appropriately selected according to the width of the groove 23 and the like. Moreover, the slit 33 for insertion is not limited to the structure mentioned above, For example, as shown in FIG. 6, it may be the slit 33a for insertion inclined with respect to the longitudinal direction, and as shown in FIG. The groove 23 may be an insertion slit 33b inclined with respect to the depth direction, and may be an insertion slit 33c other than a straight line such as a wavy slit as shown in FIG.

  Further, as shown in FIG. 5, a plurality of uneven surfaces 34 are formed on the back surface of the rod-shaped heat insulating material 32, and even if rainwater or the like is submerged between the groove portions 23 as in the case of the insertion slits 33, A drainage channel for discharging water is formed.

  Next, an outer insulation method using the outer insulation panel unit 1 of the present embodiment will be described.

  The outer heat insulation method of the present embodiment is mainly fixed by the heat insulating panel fixing step of fixing the heat insulating composite panel 2 of the outer heat insulating panel unit 1 to the columns 41 and / or the inter-columns 42 and the heat insulating panel fixing step. Further, an airtight waterproofing process in which an airtight waterproof tape 5 is applied to a joint portion between the heat insulating composite panels 2 and 2, and a heat insulating composite edge fixing process in which the heat insulating composite body edge 3 is fitted and fixed in the groove portion 23 of the heat insulating composite panel 2 And have.

  In the heat insulation panel fixing step, the heat insulation composite panel 2 manufactured in advance in accordance with the building 4 in a factory or the like is placed on the heat insulation composite so that the predetermined groove portion 23 is arranged in accordance with the positions of the pillars 41 and the studs 42 of the building 4. In this step, the plate material 21 of the panel 2 is brought into contact with the pillars 41 and the inter-posts 42 and screwed to the corresponding pillars 41 and the inter-posts 42 from the bottom of the groove 23.

  Here, as shown in FIG. 9, with respect to the first floor portion, the heat insulating composite panel 2 is arranged so as to be adjacent to the upper portion of the pier 46 with reference to the pier 46 fixed to the side surface of the foundation beam 45. Moreover, about the opening parts 44, such as a window frame, the heat insulation composite panel 2 formed so that the window may be avoided is arrange | positioned.

  As shown in FIG. 10, the screwing is performed by driving the screw 6 into the column 41 or the inter-column 42 at the bottom of the groove 23. Since the groove portion 23 is formed to be thin, it can be easily screwed. Moreover, since the groove part 23 is formed according to the position of the pillar 41 or the interposition pillar 42, it is not necessary to confirm the position of the pillar 41 or the interposition pillar 42 at the time of screwing, and a screwing operation | work can be advanced rapidly.

  About the 2nd floor or more part, it arrange | positions in a predetermined position so that it may adjoin above the heat insulation composite panel 2 provided in the lower floor part, and bis | screws to the pillar 4 or the stud 41 at the bottom of the groove part 23. FIG.

  The hermetic waterproofing process is a process of applying the hermetic waterproof tape 5 to the joint between the heat insulating composite panels 2 and 2 arranged adjacent to each other. In this embodiment, as shown in FIG. 11, an airtight waterproof tape is applied to the vertical joint between the heat insulating composite panels 2 and 2 arranged adjacent to each other in the horizontal direction, and adjacent to the first floor portion and the second floor portion. Horizontal joint portion between the heat-insulating composite panels 2 and 2 arranged, horizontal joint portion between the piers 46 arranged adjacent to the heat-insulating composite panel 2 on the first floor portion, and an opening portion 44 around the window frame Apply airtight waterproof tape to the joints. Thereby, the clearance gap between the heat insulation composite panels 2 and 2 arrange | positioned adjacently is block | closed, and high airtightness can be ensured. Further, even if rainwater or the like enters the groove 23 or the like, entry into the building 4 can be prevented.

  As shown in FIG. 12, the heat insulation barrel edge fixing step fits the rod-shaped heat insulating material 32 of the heat insulation composite barrel edge 3 formed in advance in accordance with the groove portion 23 in a factory or the like into the groove portion 23 of the heat insulation composite panel 2, This is a process of screwing the pillar 41 and the inter-column 42 from above the trunk edge 31. At the time of insertion, the rod-shaped heat insulating material 32 is provided with the insertion slits 33, so that it can contract in the left and right width directions and can be easily fitted.

  As shown in FIG. 13, the screwing is performed from the top of the trunk edge 31 toward the column 41 and the inter-column 42. Since the groove portion 23 into which the rod-shaped heat insulating material 32 is fitted is arranged in accordance with the positions of the columns 41 and the inter-columns 42, it is possible to screw the column 41 and the inter-columns 42 accurately and quickly without confirming the position. it can.

  Moreover, in the heat insulation body edge fixing process in this embodiment, as shown in FIG. 14, the groove part 23 formed with the foundation 47 and the heat insulation composite panel 2 of the 1st floor part, the heat insulation composite panel 2 of the 1st floor part, and the 2nd floor. The rod-shaped heat insulating material 7 is also fitted into the groove portion 23 formed by the partial heat insulating composite panel 2 and the groove portion 23 around the opening portion 44 such as a window portion. Thereby, the heat insulation layer of substantially uniform thickness is formed in the whole building 4.

  Below, the effect | action of each structure in the panel unit 1 for external heat insulation of this embodiment is demonstrated.

  The heat insulating composite panel 2 and the heat insulating composite body edge 3 form a heat insulating layer having a substantially uniform thickness over the entire building 4. Since the rod-shaped heat insulating material 32 fits closely to the width of the groove 23, there is no gap between the groove 23 and the airtight waterproof tape 5 closes the joint. It is done. Therefore, it is possible to build a highly insulated and highly airtight building 4.

  Further, the rod-shaped heat insulating material 32 prevents rainwater and the like from entering the groove 23, and the airtight waterproof tape 5 prevents rainwater and the like from entering the building 4 from the gaps in the joints. Further, the drainage passage formed between the insertion slit 33 and the concave-convex surface 34 and the groove 23 can drain water even if rainwater enters between the rod-shaped heat insulating material 32 and the groove 23. . As a result, the infiltration of rainwater can be surely prevented, so that it is possible to conclude an insurance contract based on the warranty method with an insurance company without installing a moisture permeable waterproof sheet.

  As shown in FIG. 13, the trunk edge 31 is screwed to the columns 41 and / or the inter-columns 42, so that it is difficult to come off even if the load of the fixed outer wall material 43 is received. Therefore, the outer wall material 43 can be stably fixed.

According to the tension insulation panel unit 1 and the outer insulation method of the present embodiment as described above, the following effects can be obtained.
1. Since the entire building 4 can be covered with a heat insulating layer having a substantially uniform thickness, the building 4 with high heat insulating performance can be constructed.
2. At the construction site, the heat insulation composite panel 2 and the heat insulation composite body edge 3 are simply tightened with screws, and labor can be saved in the field work. Therefore, in the case of a general wooden house, the construction period is longer than the conventional external insulation method. Can be shortened by about 5 to 7 days.
3. Since it is transported to the construction site after factory production, there is little loss of materials, and the waste generated at the construction site can be greatly reduced.
4). Since processing accuracy is increased by factory production, it can be finished into a highly airtight building without heat insulation defects.
5). By appropriately preventing rainwater from entering the building 4, it is possible to take out insurance based on the collateral guarantee method without constructing a moisture permeable waterproof sheet.

  The tension heat insulation panel unit 1 and the outer heat insulation method according to the present invention are not limited to the above-described embodiments, and can be appropriately changed.

  For example, in order to improve the heat insulating performance, a spray type urethane filler may be filled in a gap such as a joint portion of the heat insulating material or around the sash.

DESCRIPTION OF SYMBOLS 1 Panel unit for thermal insulation 2 Thermal insulation composite panel 3 Thermal insulation composite trunk edge 4 Building 5 Airtight waterproof tape 6 Screw 7 Thermal insulation material 21 Board material 22 Plate-like thermal insulation material 23 Groove part 31 Body edge 32 Bar-shaped thermal insulation material 33 Insertion slit 34 Uneven surface 41 columns 42 inter-columns 43 outer wall materials 44 openings 45 foundation beams 46 piers 47 foundations

Claims (3)

It is a panel unit for external insulation used for external insulation,
A plate-like heat insulating material is bonded to a plate material such as a wooden plate, an inorganic material plate , and a resin plate , and a groove portion that is long and thinly formed on the surface of the plate-like heat insulating material is formed on the surface of the building. A heat-insulating composite panel formed at intervals corresponding to the arrangement intervals of columns and / or studs;
Possess the posts and / or furring strip in the heat insulating composite panel the groove in the bar-shaped thermal insulation material formed on size can be fitted in the made is the laminated heat insulating composite furring strip which is connected to the stud of the building,
The thermal insulation composite panel is screwed to the pillar and / or the interposition pillar from the bottom of the groove portion, and the thermal insulation composite body edge is fitted into the groove portion, so that the pillar and / or the interposition pillar from above the trunk edge. The panel unit for external heat insulation , which is screwed to the outside. The panel heat insulating panel unit according to claim 1, wherein the plate-like heat insulating material of the heat insulating composite panel and the rod-like heat insulating material of the heat insulating composite body edge are formed of the same material . An external heat insulation method for providing a heat insulating layer on a building using the external heat insulating panel unit according to claim 1,
A plate material of a heat insulating composite panel is brought into contact with the pillar and / or the inter-column so that a predetermined groove is arranged in accordance with the position of the pillar and / or the inter-column, and the corresponding pillar or the inter-column is formed from the bottom of the groove. Insulating panel fixing process to be screwed to,
An airtight waterproof treatment step of applying an airtight waterproof tape to a joint portion between the heat insulating composite panels disposed adjacent to each other;
A heat insulating barrel fixing step of inserting a rod-shaped heat insulating material of a heat insulating composite body edge into the groove portion of the heat insulating composite panel and screwing to the pillar or the intermediate post from above the body edge.

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