JP3147145U - Roof panel and roof structure - Google Patents

Abstract

[PROBLEMS] To provide a roof panel and a roof structure that enable effective ventilation of a wall of a wife without impairing the design of the building.
A roof panel 101 includes a plurality of heat insulation main plates 3A arranged at intervals of approximately rafter width, and the heat insulation main plates 3A are connected to each other by adhering elongated heat insulation connection plates 3B and 103B from above. The heat insulating material 3 having the connecting portion as the rafter fitting groove 5 is bonded to the lower surface of the field ground material 2 via the heat insulating connection plates 3B and 103B, and between the field ground material 2 and the heat insulating main plate 3A, Between the heat insulating connecting plates 3B and 103B, a roof panel is formed with an air passage 4 having a thickness of the heat insulating connecting plates 3B and 103B. The roof panel 101 includes a branch air passage 109 provided through the heat insulating connecting plate 103B in the width direction of the heat insulating connecting plate 103B and communicating the air passage 104 to the outside.
[Selection] Figure 8

Description

  The present invention relates to a roof panel and a roof structure that form a roof base of a building.

Conventionally, as a technique in such a field, a roof panel and a roof structure described in Patent Document 1 below are known. This roof panel is made by connecting a plurality of heat insulating main plates made of plastic foam by sticking a long and thin heat insulating connecting plate of the same material from above, and further bonding a field ground material to the upper surface of the heat insulating connecting plate It is. An air passage corresponding to the thickness of the heat insulating connecting plate is formed between the field material of the roof panel and the heat insulating main plate, and a rafter fitting portion to be fitted to the rafter is formed at the connecting portion by the heat insulating connecting plate. Yes. Such roof panels are two-dimensionally spread while being fitted to the rafters, and a roof base is constructed. In Patent Document 1, it is proposed that such a roof structure secures the air permeability of the roof and improves the heat insulating property by eliminating the heat insulating defect portion of the roof.
Japanese Patent No. 4028881

  By the way, when considering the case where such a roof panel is used for a gable roof of a building, since the ventilation path of the roof panel extends in the direction of the rafter, the opening of the ventilation path appears on the eaves side and the ridge side. . Therefore, for example, it is relatively easy to ensure the air permeability of the spar wall by connecting the permeable layer of the spar wall to the ventilation path of the roof panel.

  On the other hand, since the ventilation path of the roof panel is in a closed state with respect to the wife surface side, the wall ventilation layer on the wife surface does not communicate with the roof side, and ventilation from the wife surface is performed on the roof side. Can't escape. Therefore, in order to ensure the air permeability of the wall of the wife surface, it is necessary to separately provide a vent hole that penetrates the wall exterior material of the wife surface to open the wall ventilation layer of the wife surface to the outside air. Moreover, in recent trends in buildings, there are many cases in which the wives are not provided for efficient use of the site or from the viewpoint of design. In many cases, it is also necessary to provide a cover for the vent hole to prevent intrusion. And the designability of a building may be impaired by such a vent or a cover.

  Then, in view of such a problem, an object of this invention is to provide the roof panel and roof structure which enable the effective ventilation of the wall of a wife face, without impairing the designability of a building.

In the roof panel of the present invention, a plurality of heat insulating main plates made of plastic foam are arranged so that the interval between the heat insulating main plates is substantially a rafter width, and the heat insulating main plates are connected to each other with an elongated heat insulating connecting plate made of plastic foam. A plurality of heat insulating materials, which are connected by sticking from above, are bonded to the lower surface of the field ground material via the heat insulating connection plate, and the field ground material and the heat insulating main plate Between the heat insulating connecting plates, a roof panel in which a ventilation path corresponding to the thickness of the heat insulating connecting plates is formed,
A branch air passage that is provided through the heat insulating connecting plate in the width direction of the heat insulating connecting plate and communicates the air passage to the outside is provided.

  When this roof panel is used for the gable roof of a building, considering the roof panel arranged in contact with the wife surface, the ventilation channel of the roof panel of this arrangement is opened to the wife surface side through the branch ventilation channel. become. Therefore, it becomes possible to make the ventilation path of this roof panel and the wall ventilation layer of a wife face communicate, and the air permeability of the wall ventilation layer of a wife face can be secured. And in this case, since it is not necessary to separately provide a ventilation hole for ensuring air permeability in the wall of the wife face, the design of the building is not impaired.

  Further, the branch ventilation path is formed so as to be surrounded by a surface that forms a ventilation groove extending in the width direction over the entire width of the heat insulating connecting plate and the entire width of the heat insulating connecting plate and a lower surface of the field ground material. It is good. According to such a configuration, the branch ventilation path can be provided relatively easily by providing the ventilation groove on the upper side of the heat insulating connecting plate.

  Moreover, the branch ventilation path is good also as being provided only in one heat insulation connection board of the heat insulation connection boards arrange | positioned at both ends. According to this configuration, it is possible to connect at least one ventilation path of the ventilation panel to the wall ventilation layer of the wife face by installing the one heat insulation connecting plate provided with the branch ventilation paths toward the wife face side. it can.

  The heat insulating main plate and the heat insulating connecting plate may have the same heat insulating performance. According to this structure, a heat insulation main board and a heat insulation connection board can also be produced with the same material.

  Further, the plastic foam may be a urethane resin foam or a phenol resin foam in which a surface material is stuck on both upper and lower surfaces.

  Further, the roof structure of the present invention, any one of the above roof panels is deposited on the rafter of the gable roof hut set of the building, the rafter is fitted into the rafter fitting groove of the heat insulating material of the roof panel, The roof structure has a roof structure in which the ventilation path of the roof panel is open to the outside air at the eaves and the ridge part, and the branch ventilation path of the roof panel is a heat insulation connection plate located at least along the end face of the building among the heat insulation connection plates. It is provided.

  Further, at least in the connection part between the roof panels, a sealing material may be interposed on the joint surface between the heat insulating material and the rafter of the roof panel. With this configuration, the heat insulation of the building is improved.

  Further, in the roof structure of the present invention, the lower surface of the heat insulating material of the roof panel deposited on the rafter is brought into contact with the upper end of the wall heat insulating material at the eave portion, and the lower surface of the heat insulating material of the roof panel and the wall heat insulating material The gap formed between the upper end of the roof is filled with a sealing material, and in the ridge, the gap between the left and right roof panels is filled with the sealing material so as not to block the ventilation path of the roof panel. It is good.

  According to the roof panel and the roof structure of the present invention, effective ventilation of the wall of the wife surface is possible without impairing the design of the building.

  Hereinafter, a preferred embodiment of a roof panel and a roof structure according to the present invention will be described in detail with reference to the drawings. The roof panel 101 (see FIGS. 8 and 9), which is an embodiment of the roof panel of the present invention, is used together with the conventional roof panel 1 (see FIG. 1), and is used to construct the roof structure of the present invention. Is. Hereinafter, prior to the description of the roof panel 101, the roof panel 1 will be described first.

  As shown in FIGS. 1 and 2, the roof panel 1 includes a field material 2 and a heat insulating material 3 bonded to the lower surface of the field material 2 with an adhesive. The heat insulating material 3 includes a plurality of heat insulating main plates 3A and an elongated heat insulating connecting plate 3B that connects a pair of adjacent heat insulating main plates 3A. The heat insulating main plate 3A and the heat insulating connecting plate 3B are made of the same material. Examples of the material include polystyrene resin foam, polyethylene resin foam, polypropylene resin foam, polyurethane resin foam, and plastic films on both upper and lower sides as necessary. A plastic foam such as a polyurethane foam, a phenol resin foam, or a melamine resin foam to which a nonwoven fabric, paper, or a metal sheet (surface material) is attached is used.

  A rafter fitting groove 5 is formed between the pair of heat insulating main plates 3A, and the heat insulating connecting plate 3B is attached to an adjacent portion of the pair of heat insulating main plates 3A from above. The heat insulating material 3 is bonded to the field ground material 2 via the heat insulating connecting plate 3B. Thus, the heat insulating connection is provided between the field ground material 2 and the heat insulating main plate 3A of the heat insulating material 3. An air passage 4 having the thickness of the plate 3B is formed. At both ends of the roof panel 1, the heat insulating connecting plate 3B of the heat insulating material 3 and the field ground material 2 are both extended from the heat insulating main plate 3A, and the lower side of the extended portion 3C is the rafter fitting groove at both ends. 5A. The width of the rafter fitting grooves 5 </ b> A at both ends is set to ½ of the width of the other rafter fitting grooves 5. Here, the roof panel 1 shown in FIGS. 1 and 2 is of a typical form having two heat insulating main plates 3A and three heat insulating connecting plates 3B.

  Such a roof panel 1 is spread two-dimensionally on the rafter 6 so that the roof base of the building is constructed. At this time, as shown in FIG. 3, each roof panel 1 is attached onto the rafter 6 of the roof set, and the rafter 6 is fitted into the rafter fitting grooves 5, 5 </ b> A of the heat insulating material 3 of the roof panel 1. . In this state, the heat insulating connecting plate 3B of the heat insulating material 3 covers the upper side of the rafter 6 to eliminate the heat insulating defect due to the rafter. In order to increase the heat insulation efficiency, the thickness of the heat insulation connecting plate 3B is desirably 20 mm or more.

  As shown in FIG. 4, the rafter 6 is supported on the lower side by an eaves girder 7A, a purlin 7B, and a purlin 7C. And in the interconnection part of the horizontal direction of this roof panel 1, as shown in FIG. 3, the sealing material 8 is interposed between the heat insulation main board 3A and the rafter 6 of this heat insulating material 3, and airtightness is ensured. .

  Further, in the eaves portion, the eaves side end of the ventilation path 4 of the roof panel 1 is open to the outside air, and the lower surface of the heat insulating main plate 3A of the heat insulating material 3 is in contact with the upper end of the wall heat insulating material 20. ing. In the gap formed between the lower surface of the heat insulating main plate 3A of the heat insulating material 3 of the roof panel 1 and the upper end of the wall heat insulating material 20, soft polyurethane foam, soft polyvinyl chloride foam, synthetic rubber sponge, etc. The heat insulating sealing material 9 made of a soft plastic foam is filled to prevent the continuity of the heat insulating structure from being cut off at the joint between the heat insulating material 3 of the roof and the wall heat insulating material 20. Further, even in the ridge, the gap between the joint portions of the left and right roof panels 1 and 1 is filled with the same heat insulating sealing material 10 to prevent the continuity of the heat insulating structure from being interrupted. The heat insulating sealing material 10 is filled between the heat insulating main plates 3A of the heat insulating material 3 of the roof panel 1 so as not to block the air passage 4 of the roof panel 1, and between the left and right roof panels 1 and 1 along the ridge. It is set so that the ridge side end of each ventilation path 4, 4 of the roof panel 1, 1 is opened to the horizontal ventilation path 11 formed in the above.

  As shown in FIG. 5, a roof material 12 is provided on the top surface of the field material 2 of the roof panel 1. And in the ridge part, the draining board 14 is coat | covered via the headboards 13 and 13. FIG. A ridge ventilation member 16 as shown in FIGS. 6 and 7 is attached to a predetermined portion of the ridge, and the lateral ventilation path 11 of the roof 17 is opened to the outside air via the ridge ventilation member 16. Is set to be. The ridge ventilation member 16 is made of plastic such as polypropylene or polyvinyl chloride, and includes a cap-shaped draining plate 16A and a breathable block 16B bonded to both sides of the lower surface of the draining plate 16A. For example, a large number of communication holes are provided in a honeycomb shape.

  In the roof 17, the eaves side is ventilated by the eaves end of the ventilation path 4 of the roof panel 1 being directly open to the outside air, and the ridge side ventilation is laterally ventilated by the ventilation path 4 of the roof panel 1. This is performed by opening to the passage 11 and opening the lateral ventilation passage 11 to the outside air through the building ventilation member 16.

  Next, the roof panel 101 which is an embodiment of the roof panel of the present invention will be described. The roof panel 101 is obtained by changing the roof panel 1 as shown in FIGS. The roof panel 101 can be used for construction of a roof structure in place of the roof panel 1, and all the roof panels 1 in the above description can be replaced with the roof panel 101.

  As shown in FIGS. 8 and 9, a ventilation groove 107 having a rectangular cross section extending in the width direction (horizontal direction) is formed on the upper surface of the heat insulating connecting plate 103 </ b> B of the roof panel 101. The ventilation groove 107 extends over the entire width of the heat insulating connecting plate 103B, and is formed at several locations (for example, three locations in FIGS. 8 and 9) at equal intervals. Such a ventilation groove 107 can be formed, for example, by cutting the upper surface of the heat insulating connecting plate.

  Since the depth of the ventilation groove 107 is smaller than the thickness of the heat insulating connecting plate 103B, there is no occurrence of a heat insulating defect on the lower surface of the heat insulating connecting plate 103B, and the airtightness in the fitting groove 105A directly below the heat insulating connecting plate 103B. Is secured in the same manner as the roof panel 1. Moreover, the space | interval of each ventilation groove | channel 107 is set shorter than the installation space | interval of the column arranged in the end face 203 (refer FIG. 10).

  By providing such a ventilation groove 107, a through-hole 109 having a rectangular cross section surrounded by the lower surface of the field material 2 and the surface forming the ventilation groove 107 is formed. The through-hole 109 functions as a branch air passage for connecting the air passage 104 adjacent to the heat insulating connecting plate 103B to the outside of the side of the roof panel 101. Hereinafter, the through hole 109 may be referred to as a “branch air passage 109”. Thus, the branch ventilation path 109 can be easily provided by performing comparatively easy process, such as formation of the groove | channel of an upper surface, to the heat insulation connection board 103B. In addition, about the component which is the same as that of the roof panel 1 among the components of this roof panel 101, the same code | symbol is attached | subjected to drawing and the overlapping description is abbreviate | omitted.

  Next, as shown in FIG. 10, a roof structure 201 constructed by laying the roof panel 1 and the roof panel 101 on a rafter of a building 200 having a gable roof will be described.

  In this roof structure 201, the roof panel 101 is attached to a position where it is in contact with the end face 203 of the building 200, and the roof panel 1 is attached to other positions. Among these, when considering the roof panel 101 arranged in contact with the end face 203, one of the heat insulating connecting plates located at both ends of the roof panel 101 is located closest to the end face 203 and is on the end face 203. Will extend along. Therefore, as shown in FIG. 10, the roof panel 101 is installed with the heat insulating connecting plate 103 </ b> B facing the side close to the end face 203.

  As shown in FIG. 11 and FIG. 12, the heat insulating connecting plate 103 </ b> B extends along the end face 203 on the rafter 206 that is closest to the end face 203 by adopting the roof panel 101. . 11 shows a XI-XI cross section in FIG. 10, and FIG. 12 shows a state in which the vicinity of the branch air passage 109 shown in FIG. In the wall of the end face 203 of the building 200, a hollow wall ventilation layer 207 exists inside the exterior material 205. The wall ventilation layer 207 is communicated with the ventilation path 104 of the roof panel 101 by a branch ventilation path 109 extending in a direction crossing the rafter 206. As a result, the ventilation from the wall ventilation layer 207 can be released to the roof side through the ventilation path 104 of the roof, and finally to the eaves and the building. Such air permeability of the wall is important for exhausting the moisture of the wall and suppressing deterioration of the building structure.

  Here, if the roof panel 1 is attached instead of the roof panel 101 in contact with the end face 203, the branch ventilation path 109 is not present in FIGS. 11 and 12, and the upper end of the wall ventilation layer 207 is closed. Will be. Therefore, in this case, in order to ensure the air permeability of the wall, it is necessary to provide a ventilation hole penetrating the exterior material 205 in the upper part of the end face 203. In addition, in recent years, buildings are often not provided with a flange on the side of the face 203 from the viewpoint of efficient use of the site and design, etc. In this case, rainwater intrusion prevention into the vent hole is prevented. A cover is also required. Thus, the design of the end face 203 of the building 200 may be impaired by providing the exterior material 205 with a vent or a cover. On the other hand, the roof panel in contact with the end face 203 is the roof panel 101 described above, so that the wall ventilation layer 207 communicates with the roof side and air permeability is ensured. This is unnecessary, and the design of the face 203 of the building 200 is not impaired.

  The present invention is not limited to the embodiment described above. For example, in the roof panel 101, the ventilation groove 107 is formed on only one of the plurality of heat insulation connecting plates, but in addition, the ventilation groove 107 is formed on any one of the plurality of heat insulation connecting plates. May be. Moreover, the ventilation groove 107 may be formed in the heat insulation connecting plate located in the both ends of a panel, and the ventilation groove 107 may be formed in all the heat insulation connection plates. Further, the provision of the branch ventilation path 109 is not limited to the formation of a groove such as the ventilation groove 107. For example, a through-hole penetrating the inside of the heat insulating connecting plate in the width direction may be formed. The heat insulating main plate 3A and the heat insulating connecting plates 3B and 103B do not necessarily need to use the same material, and may use different materials. Moreover, in the said embodiment, although the roof panel 101 is employ | adopted only in the position which touches the end face 203 like FIG. 10, you may employ | adopt the roof panel 101 on the whole roof structure. Moreover, although this embodiment illustrates a wooden building, it is applicable also to a light iron hut set.

It is a partially broken perspective view which shows a roof panel. It is a front view of the roof panel of FIG. FIG. 2 is a partial cross-sectional view of a state in which the roof panel of FIG. Partial longitudinal sectional view of the roof panel of FIG. It is a cross-sectional view (draining board attachment part) of the ridge part of the building where the roof panel of FIG. 1 is used. It is a cross-sectional view (building ventilation member attachment part) of the ridge part of the building where the roof panel of FIG. 1 is used. It is a front view of the ridge ventilation member of the building where the roof panel of FIG. 1 is used. It is a partially broken perspective view showing one embodiment of a roof panel according to the present invention. It is sectional drawing of the roof panel of FIG. It is a perspective view which shows the building and roof base structure where the roof panel of this invention is used. It is XI-XI sectional drawing in the building of FIG. It is sectional drawing which shows the state which looked at the branch ventilation path vicinity shown by FIG. 11 from the wife surface side.

Explanation of symbols

2 ... Field ground material, 3 ... Heat insulation material, 3A ... Heat insulation main plate, 3B, 103B ... Heat insulation connection plate, 4,104 ... Air passage, 5, 5A, 105A ... Rafter fitting part, 6,206 ... Rafter, 8, DESCRIPTION OF SYMBOLS 9,10 ... Sealing material, 107 ... Groove, 109 ... Branch ventilation path (through-hole), 200 ... Building, 201 ... Roof structure, 203 ... Wife surface.

Claims (8)

By arranging a plurality of heat insulating main plates made of plastic foam so that the interval between the heat insulating main plates is substantially a rafter width, and sticking an elongated heat insulating connecting plate made of plastic foam from above the heat insulating main plates A plurality of heat insulating materials having the connection portions as rafter fitting portions are bonded to the lower surface of the field ground material via the heat insulating connection plate, and the heat insulation is provided between the field ground material and the heat insulation main plate. A roof panel in which a ventilation path corresponding to the thickness of the heat insulating connecting plate is formed between the connecting plates,
A roof panel comprising a branch air passage that is provided through the heat insulating connecting plate in a width direction of the heat insulating connecting plate and communicates the air passage with the outside. The branch air passage is
The upper surface of the heat insulating connecting plate and a surface forming a ventilation groove extending in the width direction over the entire width of the heat insulating connecting plate and the lower surface of the field ground material are surrounded by and formed. Item 2. The roof panel according to item 1. The branch air passage is
The roof panel according to claim 1, wherein the roof panel is provided only on one of the heat insulating connecting plates among the heat insulating connecting plates arranged at both ends.   The roof panel according to any one of claims 1 to 3, wherein the heat insulating main plate and the heat insulating connecting plate have equivalent heat insulating performance.   The roof panel according to any one of claims 1 to 4, wherein the plastic foam is a urethane resin foam or a phenol resin foam in which a surface material is adhered to both upper and lower surfaces. The roof panel according to any one of claims 1 to 5 is deposited on a rafter of a gable roof hut set of a building, the rafter is fitted into a rafter fitting groove of a heat insulating material of the roof panel, A roof structure in which the ventilation path of the roof panel is opened to the outside air at the eaves and the ridge,
The branch vent of the roof panel is
The roof structure characterized by being provided in the said heat insulation connection board located along the end face of the said building at least among the said heat insulation connection boards.   The roof structure according to claim 6, wherein a sealing material is interposed at a joint surface between the heat insulating material and the rafter of the roof panel at least at a connection portion between the roof panels.   The lower surface of the heat insulating material of the roof panel deposited on the rafter is brought into contact with the upper end of the wall heat insulating material at the eave portion, and is formed between the lower surface of the heat insulating material of the roof panel and the upper end of the wall heat insulating material. The sealing gap is filled with a sealing material, and in the ridge, the gap between the left and right roof panels is filled with the sealing material so as not to block the air passages of the roof panels. 7. The roof structure according to 7.

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