JP2003090088A - Heat insulating panel for roof, and heat insulating waterproof roof structure using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heat insulating technique for a roof, which exhibits a sufficient heat insulating function, improves effective use of an attic space and heating-cooling effect in a habitable room, has a waterproofing function, is good in construction efficiency, and advantageous in cost. SOLUTION: The heat insulating panel 1 for the roof is formed of a single or a plurality of parallel recessed grooves 2 extending from one edge to the other edge thereof, horizontal support pieces 4, 3 arranged on right and left upper edges of the recessed grooves 2 along the same, in a manner extending outward, and a heat reflective sheet 10 stuck to an inner surface of each recessed groove 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat insulating panel for a roof and a heat insulating and waterproof roof structure using the same.

[0002]

2. Description of the Related Art In recent years, as a heat insulation measure for a wooden house having a sloping roof, the roof portion itself is provided with heat insulation property as compared with the conventional ceiling heat insulation performed by laying glass wool on the ceiling surface. The so-called roof insulation technology, which can improve the heat resistance in summer and the prevention of dew condensation in winter and can effectively use the attic space and the cooling and heating effect in the living room, is attracting attention.

Generally, a roof (01) of a wooden house has a base plate (03) on a rafter (02) as shown in a partially cutaway perspective view of FIG.
After laying the waterproof sheet (03a) on it,
Furthermore, roofing materials (04) such as tiles are laid on it.

As a roof heat insulation technique, for example, Japanese Patent Laid-Open No.
No. 1448 discloses a technique of attaching a heat reflection film (05) to the lower surface of a rafter (02), as shown in a partial vertical sectional view of a roof portion in FIG.

Further, in Japanese Unexamined Patent Publication No. 9-144156, similarly, as shown in a partial vertical sectional view of the roof portion in FIG.
The heat insulation panel (07) having (06) is fitted between the rafters (09) and (09) to which the base plate (08) is fixed, and the groove (06) is used as the ventilation layer (010) that communicates with the outside air. A technique of covering the attic side of (07) with an airtight sheet (011) is disclosed.

However, in the former case, since the thickness of the heat reflection film (05) is thin, not only is it easily damaged, but also the work of attaching the heat reflection film (05) is an upward work from the attic side where the scaffolding is unstable. There is a problem that workability during construction is poor because a U-shaped stable (tucker) is struck after being pasted with double-sided tape.

In the latter case, a heat insulating panel (07) is attached to a rafter (09).
(09) Work to fit between and the airtight sheet on the attic side (011)
Not only does it require two types of work, covering with
The work of covering with the airtight sheet (011) is upward work from the attic side where the scaffold is unstable, and the airtight sheet (011)
Must be fixed to the underside of the rafter (09) with a cutter or the like, and the seam part must be treated with adhesive tape or the like so that no gap is opened. Therefore, there is a problem that workability during construction is considerably poor.

Further, the heat insulation panel (07) is a rafter (09) (09).
Because it is just fitted between, the base plate (08)
If water leaks due to defective construction or deterioration over time, the water will pass between the rafter (09) and the heat insulation panel (07), and the thickness of the airtight sheet (011) will be thin and easily damaged. There is a risk of water leaking into the attic space or living room.

Furthermore, the airtight sheet (011) is a rafter (0
The thickness of the heat insulating panel (07) or its heat insulating panel (07) to cover the surface of the lower surface of the heat insulating panel (07) and the lower surface of the heat insulating panel (07).
And the heat insulating material (not shown) to be polymerized on the lower surface of the rafter (09) should be the same as the thickness of the rafter (09). It becomes high.

[0010]

In view of the above situation, the present invention has a sufficient heat insulating function, can effectively utilize the attic space and improve the heating and cooling effect in the living room, and also has a waterproof function. It is also an object of the present invention to provide a roof heat insulation technique which has a good workability during construction and is advantageous in cost.

[0011]

According to the present invention, the above problems can be solved as follows. (1) A single groove or a plurality of parallel grooves extending from one end to the other end is provided, and substantially horizontal support pieces are extended outward along the grooves at the left and right upper edges of the grooves. A heat insulating panel for roof characterized by the above.

(2) In the above item (1), it is assumed that at least one of the left and right supporting pieces has a waterproof piece extending downward from the edge of the supporting piece along the groove.

(3) In the above item (1) or (2),
The left and right support pieces are provided such that the extending widths of the left and right support pieces are different from each other.

(4) In any one of the above items (1) to (3), the left and right support pieces are provided such that the height positions of the left and right support pieces are different from each other by approximately the same dimension as the thickness of the support piece. It is assumed that

(5) In any one of the above items (1) to (4), a heat reflecting sheet is attached to at least the inner surface of the groove on the surface of the roof heat insulating panel.

(6) In the roof heat insulating panel according to any one of the above items (1) to (5), between the rafters, the support pieces of the left and right adjacent heat insulating panels overlap on the upper surface of the rafter. In this way, a heat insulating waterproof roof structure is characterized in that a ground plate is provided on the upper surface of the heat insulating panel, and a ventilation layer is formed between the heat insulating panel and the ground plate so as to communicate from the eaves to the ridge. To do.

(7) In the above item (6), items (1) to (5)
Insulating panel for roof according to any one of the paragraph, sequentially from the eaves near the eaves along the rafter, to the vicinity of the ridge, the upper and lower edges of the vertically adjacent heat insulating panel, the upper edge of the lower heat insulating panel The lower surface of the lower edge portion of the upper heat insulating panel is arranged side by side so as to partially overlap with the upper surface.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a perspective view of a roof heat insulating panel (hereinafter, also simply referred to as “heat insulating panel”) (1) of the present invention, and FIG. 2 is a view of the heat insulating panel (1) shown in FIG. Front view, Figure 3
Is a partially broken perspective view of a roof structure using the heat insulation panel (1), FIG. 4 is a vertical sectional view taken along line IV-IV in FIG. 3, and FIG. 5 is a vertical sectional view taken along line VV in FIG. .

As shown in FIGS. 1 and 2, the heat insulation panel (1) of the present invention is provided with a groove (2) extending from one end to the other end of the heat insulation panel (1), and the groove (2). Substantially horizontal support pieces (3) and (4) are extended outwardly along the groove (2) at the left and right upper edges.

Further, of the left and right support pieces (3) and (4), a waterproof piece (5) is hung down along the groove (2) at the edge of one support piece (3). Thus, the panel body (6) is formed.

As shown in FIG. 4, the concave groove (2) is used as a base plate when the heat insulating panel (1) is installed on the roof.
The air-permeable layer (8) is formed between the heat-insulating panel (7) and (7), and is open at both ends of the heat insulating panel (1).

The supporting pieces (3) and (4) are heat insulating panels (1).
Is for erection support between the rafters (9) (9).

More specifically, as shown in a broken line circle in FIG. 4, the support pieces (3) and (4) of the heat insulation panels (1) and (1) adjacent to each other in the left-right direction are provided with the waterproof pieces (5). Not supported piece (4)
The support piece (3) provided with the waterproof piece (5) is superposed on it and placed and fixed on the upper surface of the rafter (9). Therefore, the inner width M of the support piece (3) provided with the waterproof piece (5) in the left-right direction needs to be the same as or slightly larger than the width W of the rafter (9).

On the other hand, the support piece (4) not provided with the waterproof piece (5) is the support piece (3) provided with the waterproof piece (5).
The width N in the left-right direction of the support piece (4) is slightly smaller than the width M of the support piece (3) provided with the waterproof piece (5) because the support piece (4) is fitted into the lower side. preferable.

Further, the heat insulation panel (1) of the present invention is placed on the upper surface of the rafter (9) by superposing the support pieces (3) and (4) of the heat insulation panels (1) and (1) adjacent to each other in the left-right direction. If the thickness of the panel body (6) is large, the left and right support pieces (3) and (4) should be fixed at the height positions of the support pieces (3).
By arranging the same dimension as the wall thickness of (4) in different steps, the lower surface of the groove (2) of the heat insulation panel (1) after construction is inclined in the roof part, and the lower surface and rafters (9) It is possible to prevent the lower surface from being not flush with each other and being in a concavo-convex state to deteriorate the appearance.

The outer groove width P of the groove (2) is
Slightly smaller than the width Q between the rafters (9) (9), the outer dimension depth D is made substantially the same as the height H of the rafters (9), and the lower surface of the rafters (9) and the heat insulation panel (1 The lower surface of () is substantially flush with the lower surface.

When the heat insulating panel (1) is installed on the roof, the waterproof piece (5) is formed from the overlapping portion of the support pieces (3) and (4) of the adjacent heat insulating panels (1) and (1). This is to prevent downward water leakage. Therefore, it is desirable that the waterproof piece (5) be extended obliquely outwardly along the side plate (2a) of the groove (2) of the adjacent heat insulating panel (1).

From the viewpoint of the heat insulating effect and the ease of molding, the panel main body (6) may be molded by using a synthetic resin such as polyvinyl chloride, polypropylene, polyethylene or the like, and by foaming it if necessary. preferable.

The heat insulation panel (1) of the present invention is constructed by attaching a heat reflection sheet (10) to the groove (2) of the panel body (6).

The heat-reflecting sheet (10) reflects and blocks the secondary heat from the field board (7) heated by the solar heat through the roofing material (11). For example, aluminum foil or aluminum. The attached kraft paper and other white sheets are used.

To install the heat insulating panel (1) of the present invention on the roof part, the following procedure is performed. First, as shown in FIG. 3 and FIG. 4, the support pieces of the adjacent heat insulation panels (1) and (1) across the part of the roof rafter (9) near the eaves part (12) in the left-right direction.
(3) Place (4) on top of the rafters (9) and stack them with a tacker.

Next, as shown in FIGS. 3 and 5, rafters
Along the (9), from the vicinity of the eaves (12) to the vicinity of the ridge (13), the upper and lower edges of the heat insulating panels (1) (1 ') that are vertically adjacent to each other,
The upper heat insulating panel (1 ') and the lower heat insulating panel (1') are arranged side by side so as to partially contact with the upper surface of the upper edge of the lower heat insulating panel (1).

Then, the roof panel (7), the waterproof sheet (7a), and the roofing material (11) such as roof tiles (11) are sequentially installed on the upper side of the laid thermal insulation panel (1) to form an adiabatic waterproof roof structure. can get. That is, by arranging the heat insulation panels (1) continuously in parallel in the vertical direction, VI-V in FIG.
FIG. 6 which is a sectional view taken along line I (however, the waterproof sheet is not shown)
As shown in FIG. 3, the concave groove (2) forms a ventilation layer (8) communicating with the base plate (7) from the eaves tip (12) to the ridge (13).

Therefore, the air entering from the ventilation gallery (14) of the eaves section (12) is discharged to the outside from the ventilation gallery (15) of the ridge section (13) through the ventilation layer (8).

Since the heat reflecting sheet (10) is attached to the inner surface of the groove (2), the secondary heat from the roof plate (7) heated by the solar heat through the roofing material (11) is not generated. The air in the ventilation layer (8) is warmed by being reflected by the heat reflection sheet (10). As a result, the warmed air becomes an upward flow and the discharge from the ventilation gallery (15) is promoted.

As described above, since the heat reflecting sheet (10) blocks the secondary heat and the air that absorbs the blocked heat is efficiently discharged outdoors, it has an excellent heat insulating effect on the attic space. Is obtained.

FIG. 7 is a drawing corresponding to FIG. 6 in the case of performing forced ventilation using the ventilation layer (8).

In FIG. 6, the ventilation louver (1
5) is provided to show natural ventilation, but the ridge (13)
Even when the ventilation gallery (15) is not present in the ridge (13), as shown in Fig. 7, one of the eaves (1
A ventilation fan (16) is provided in 2), and forced ventilation can be performed by blowing air toward the ventilation gallery (18) of the other eaves section (17).

FIGS. 8 and 9 show another embodiment of the heat insulating panel of the present invention and a construction form using the same, and are drawings corresponding to FIG. As shown in FIG. 8, the heat insulation panel (19) of the present invention may be provided with a plurality of parallel running grooves (22) (22) between the left and right support pieces (20) (21). . By providing a plurality of parallel running grooves (22) (22), the insulation panel (1
It is possible to reduce the wall thickness of 9) and ensure the required physical strength. Further, a heat reflection sheet (23) is attached over the two concave grooves (22) (22) to block heat.

Further, in the present embodiment, instead of the waterproof piece hanging from the edge of the support piece, the width S of one support piece (20) in the left-right direction is made larger than the width W of the rafter (9). By doing so, leakage of water from the overlapping portions of the support pieces (20) and (21) is prevented.

In the embodiment shown in FIG. 9, 1
A single heat insulating panel (24) allows construction of a width across three adjacent rafters (9).

Thus three or more rafters (9)
The heat insulation panel (24) having a width extending over the length is preferable from the viewpoint of improving work efficiency during construction, but it is also necessary to consider the physical strength.

For example, if the wall thickness is increased, a certain level of physical strength can be secured, but the weight of one heat insulating panel increases, which not only adversely affects the work efficiency during construction, but also
It is also disadvantageous in terms of cost.

Therefore, for example, the heat insulation panel (24)
It is also one of the preferable embodiments to provide a shallow rib (not shown) orthogonal to the groove (25) on the bottom surface of the groove (25).

[0045]

The present invention has the following effects. (1) According to the invention described in claim 1, since the concave groove for forming the ventilation layer having a heat insulating function can be designed to have a wide width with the width between the rafters being the upper limit, it is effective. The heat insulation function of the attic space can be improved, the heat resistance of the attic space in summer and the prevention of dew condensation in winter can be improved, and the heating and cooling effect in the living room can be improved. Further, when the heat insulating panel is installed between the rafters, the support pieces of the adjacent heat insulating panels are overlapped and placed and fixed on the upper surface of the rafter, so that the heat insulating panel also has a waterproof function.

Further, when the heat insulating panel is installed on the roof portion, it is not a cramped upward work in a narrow attic space but a downward work in a wide space where a rafter is used as a scaffold, and the support piece is placed on the upper surface of the rafter. Then, since it is a simple work of just hitting and fixing with a tucker, the efficiency at the time of construction is extremely good. In addition, since the heat insulating panel can be made thin, it is advantageous in terms of cost.

(2) According to the invention described in claim 2, the waterproof function can be effectively enhanced.

(3) According to the invention as set forth in claim 3, when the heat insulating panels are installed between the rafters, the work of stacking the supporting pieces of the adjacent heat insulating panels and placing and fixing them on the upper surface of the rafter is performed. It will be easy.

(4) According to the invention described in claim 4, when the thickness of the heat insulating panel is relatively large, the lower surface of the concave groove of the heat insulating panel after construction on the roof is inclined, and the lower surface and the rafters. It is possible to prevent the lower surface of the sheet from being not flush with each other and becoming uneven so that the appearance is deteriorated.

(5) According to the fifth aspect of the invention, the secondary heat from the roof plate heated by the solar heat through the roofing material is reflected by the heat reflecting sheet, and the heat is reflected between the roof plate and the groove. The heat insulation effect can be enhanced by warming the air in the formed ventilation layer, forming an upward flow, and promoting discharge to the outside.

(6) According to the invention as set forth in claim 6, it is possible to enhance the heat insulating effect by the ventilation layer leading from the eaves to the ridge, and to effectively use the attic space and improve the heating and cooling effect in the living room. Further, since the supporting pieces of the adjacent heat insulating panels are overlapped with each other, they have a waterproof function. further,
It has excellent workability during construction and is advantageous in construction cost.

(7) According to the invention as set forth in claim 7, at the upper position near the ridge, even when water leaks through the roofing material, the waterproof sheet and the ground plate, the vertically adjacent heat insulating panels are Since the upper and lower edges are arranged side by side so as to partially overlap with the upper surface of the upper edge of the lower heat insulating panel and the lower surface of the lower edge of the upper heat insulating panel abut, It is possible to effectively prevent leakage of water through the bottom.

[Brief description of drawings]

FIG. 1 is a perspective view of a heat insulation panel of the present invention.

FIG. 2 is a front view of the heat insulation panel shown in FIG.

3 is a partially cutaway perspective view of a roof structure using the heat insulation panel shown in FIG.

FIG. 4 is a vertical sectional view taken along line IV-IV in FIG.

5 is a vertical cross-sectional view taken along line VV in FIG.

6 is a vertical sectional view taken along line VI-VI in FIG.

FIG. 7 is a drawing corresponding to FIG. 6, showing an embodiment in which forced ventilation is performed in the roof structure using the heat insulating panel of the present invention.

FIG. 8 is a drawing corresponding to FIG. 4, showing another embodiment of the heat insulating panel of the present invention and a roof structure using the same.

9 is a drawing corresponding to FIG. 4, showing another embodiment of the heat insulating panel of the present invention and a roof structure using the same.

FIG. 10 is a partially cutaway perspective view showing a structure of a roof of a general wooden house.

FIG. 11 is a partial vertical cross-sectional view of a roof portion showing an example of a conventional heat insulation technique.

FIG. 12 is a partial vertical cross-sectional view of the roof part showing another example of the conventional heat insulating technique.

[Explanation of symbols]

(1) Insulation panel (1 ') heat insulation panel (2) Groove (2a) Side plate (3) (4) Support piece (5) Waterproof piece (6) Panel body (7) Field board (7a) Tarpaulin (8) Ventilation layer (9) Rafter (10) Heat reflection sheet (11) Roofing material (12) Eaves part (13) Wing (14) (15) Ventilation louver (16) Ventilation fan (17) Eaves section (18) Ventilation louver (19) Insulation panel (20) (21) Support piece (22) Groove (23) Heat reflection sheet (24) Insulation panel (25) Groove (01) Roof (02) Rafter (03) Base plate (03a) Tarpaulin (04) Roofing material (05) Heat reflective film (06) Groove (07) Insulation panel (08) Base plate (09) Rafter (010) Ventilation layer (011) Airtight sheet

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Tamio Izuhara             1-4-5 Nishi-Shimbashi, Minato-ku, Tokyo Stock market             Within Shannon (72) Inventor Manabu Kondo             1-1 Mikagecho, Tokuyama City, Yamaguchi Prefecture             In Kuyama F-term (reference) 2E001 DA01 DB02 DD01 FA16 FA19                       GA13 GA22 GA23 HB04 HC08                       HD11 HD13 ND25 ND26

Claims (7)

[Claims] 1. A single or a plurality of concave grooves extending in parallel from one end to the other end are provided, and a substantially horizontal support piece is directed outward along the concave grooves at upper left and right edge edges of the concave grooves. A heat insulating panel for roof, which is characterized by being extended. 2. The heat insulation for a roof according to claim 1, wherein a waterproof piece is hung and extended at an edge of at least one of the left and right support pieces along the concave groove. panel. 3. The heat insulating panel for a roof according to claim 1, wherein the left and right support pieces are provided so that the extending widths of the left and right support pieces are different from each other. 4. The left and right support pieces are provided such that the height positions of the left and right support pieces are stepped by approximately the same dimension as the thickness of the support piece. Insulation panel for roof. 5. The heat insulating panel for a roof according to claim 1, wherein a heat reflecting sheet is attached to at least the inner surface of the groove on the surface of the heat insulating panel for the roof. 6. The roof heat insulating panel according to claim 1, wherein the roof heat insulating panel is erected between rafters so that the support pieces of the left and right adjacent heat insulating panels overlap on the upper surface of the rafter. A heat insulating waterproof roof structure characterized in that a base plate is provided on the upper surface of the heat insulating panel, and a ventilation layer is formed between the heat insulating panel and the base plate so as to communicate from the eaves to the ridge. 7. The heat insulating panel for a roof according to claim 1, wherein the upper and lower edge portions of the heat insulating panel that are vertically adjacent to each other from the vicinity of the eaves portion to the vicinity of the ridge along the rafter, The heat-insulating waterproof roof according to claim 6, wherein the lower heat-insulating panels are arranged side by side so as to partially overlap with the upper surface of the upper edge of the lower heat-insulating panel so that the lower surface of the lower edge of the upper heat-insulating panel abuts. Construction.