JP6691007B2 - Formwork unit and basic insulation method - Google Patents

Description

  The present invention relates to a formwork unit and a basic heat insulation construction method, and more particularly to a formwork unit for constructing a foundation with a heat insulating material, and a basic heat insulation construction method using the formwork unit.

  As a building in a cold region, a building that can suppress the heat storage effect from the outside temperature to the underfloor by preserving the inside or outside of the foundation or both sides by the basic insulation method that installs a heat insulating material at the rising part of the foundation becomes widespread. It's starting.

  For example, in Patent Document 1, a formwork for constructing a foundation is a heat-insulating formwork formed of a heat insulating material, and a holding plate for holding an anchor bolt is provided on an upper portion of the heat-insulating formwork (in the document, It is described that the top spacer is attached.). The retaining plate is for retaining anchor bolts on top of a foundation constructed by an insulating formwork.

In the basic heat insulation construction method described in Patent Document 1, the mold itself has heat insulating properties, and the mold is left after the foundation is constructed.
On the other hand, after the formwork and the heat insulating material are separate members, the heat insulating material is placed between the formwork pieces that are erected at a distance, and the concrete is cast together with the heat insulating material to build the foundation. , There is also a method of removing the formwork while leaving only the heat insulating material.
When a foundation with a heat insulating material is constructed, it is necessary to adjust the height of the foundation and the height of the heat insulating material in order to attach the draining material in accordance with the overhang of the heat insulating material from the foundation.

A cutting tool that can be easily cut to form a flat cut surface on the heat insulating material protruding from the top end surface of the foundation after constructing the foundation with heat insulating material by the method of removing the formwork while leaving only the heat insulating material Is described in Patent Document 2.
Further, Patent Document 3 describes a top end formwork capable of constructing a foundation having a step.

JP 2001-11869 A JP, 2007-291831, A JP, 2010-209626, A

  The arrangement interval of the formwork pieces that form the formwork is the same as the thickness of the heat insulation material when building a foundation with the same thickness when placing the heat insulating material between the formwork pieces and when not placing it. Only will be different.

  Therefore, when attaching the holding plate of Patent Document 1 or the top mold of Patent Document 3 on the mold piece, when the heat insulating material is arranged, a large anchor plate or It was necessary to separately prepare the top mold. For this reason, it takes a lot of time to install the form unit made up of them.

  Further, when the cutting tool described in Patent Document 2 is used, even if the heat insulating material can be cut so as to efficiently form a cut surface, the amount of work for cutting the heat insulating material, Overall work efficiency will be rather low.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a form unit and a foundation heat insulation method capable of easily constructing a foundation with a heat insulating material.
More specifically, an object of the present invention is to make it possible to commonly use holding plates of the same size even when the intervals between the mold pieces are different.
Further, an object of the present invention is to construct a foundation with a heat insulating material having a predetermined height in order to secure a space for disposing a draining material or the like on the heat insulating material.
Another object of the present invention is to facilitate the work of installing the formwork unit.

  According to the formwork unit of the present invention, the above-mentioned subject is used for constructing a foundation with a heat insulating material having a base body having a rising portion and a heat insulating material attached along the rising portion of the base body. A mold unit, which is a first mold piece and a second mold piece arranged with a space having a width of a sum of the thickness of the heat insulating material and the thickness of the rising portion of the basic body being sandwiched, A holding plate that holds an anchor bolt partially embedded in the base body, and is attached to the upper part of the first formwork piece, and in the width direction of the space, overhangs to the second formwork piece side, A supporting member that is disposed between the upper portion of the first mold piece and the upper portion of the second mold piece to support the holding plate, and the holding plate includes the supporting member and the second mold. Be installed across the top of the frame It is more resolved.

  According to the above configuration, when constructing the foundation with the heat insulating material, in the width direction of the space between the first formwork piece and the second formwork piece, the holding plate that holds the anchor bolt is the second formwork. Since it is installed across the upper part of the piece and the supporting member provided so as to project from the upper part of the first mold piece, between the first mold piece and the second mold piece as much as the heat insulating material is provided. Even if the width of the space in is increased in the width direction, it is possible to use the holding plate installed in the base formwork that is not provided with the heat insulating material. Also, when constructing foundations with heat insulating materials of different thickness, the same holding plate can be used by using the support member, so there is no need to prepare holding plates of different sizes, and the heat insulating It becomes easy to build a foundation with lumber.

The support member includes an attachment piece attached to an upper portion of the first mold piece, and a hanging piece extending substantially vertically from the attachment piece. In a state of being attached to the upper part of the one mold piece, it extends vertically in the space so as to separate the space above the heat insulating material from the space and the space in which the rising portion is formed. preferable.
According to the above configuration, in the space, the hanging piece separates the space between the first mold piece and the second mold piece from the space above the heat insulating material and the formation space of the rising portion. By extending in the vertical direction, it is possible to restrict the concrete placed between the second form piece and the hanging piece from flowing into the upper part of the heat insulating material, and there is a step with the heat insulating material. Can be built. By providing the step in this way, a space for attaching a draining material or the like can be formed above the heat insulating material lower than the base body by the step, and the heat insulating material suitable for the connection of other members. It becomes easy to build a foundation.

Further, it is preferable that the support member and the upper portion of the first mold piece or the holding plate are connected by a pin.
According to the above configuration, the support member is connected to the upper portion of the first mold piece or the holding plate by a pin, so that the support member is formed by inserting and removing the pin from the first mold piece or the holding plate. Can be easily connected / disconnected, and the work of installing the formwork unit is facilitated.

Further, the pin may be inserted into the heat insulating material arranged in the space.
According to the above configuration, the movement of the heat insulating material can be more reliably suppressed by inserting the pin into the heat insulating material.

  Moreover, the said subject WHEREIN: According to the basic heat insulation construction method of this invention, the said mold unit is prepared, and the installation process which installs the said heat insulating material between the said 1st mold piece and the said 2nd mold piece. After the installation step, a support member attachment step of attaching the support member to the upper side of the first formwork piece so as to project toward the second formwork piece side, and a space of the space after the support member attachment step. And a plate mounting step of mounting the holding plate so as to straddle the support member and the upper portion of the second mold piece in the width direction.

  According to the above configuration, when constructing the foundation with the heat insulating material, the support member is attached to the upper part of the first mold piece so as to project to the second mold piece side, and the support member and the second mold piece are By attaching the holding plate so as to straddle the upper part, the holding plate can be used in common even if the distance between the first mold piece and the second mold piece is widened by the amount of the heat insulating material provided. .

ADVANTAGE OF THE INVENTION According to the formwork unit which concerns on this invention, even if the length in the width direction of the space between a 1st formwork piece and a 2nd formwork piece becomes long by the amount of providing a heat insulating material, a different size holding | maintenance is carried out. There is no need to prepare a plate, which makes it easier to build a foundation with heat insulating material.
In addition, a space for attaching a draining material or the like can be formed above the heat insulating material, which facilitates the construction of a foundation with a heat insulating material suitable for the connection of other members.
Further, the support member can be easily connected / disconnected to / from the first mold piece or the holding plate by inserting / removing the pin, which facilitates the installation work of the mold unit.
Moreover, the movement of the heat insulating material can be suppressed more reliably.
Further, according to the basic heat insulation method of the present invention, the holding plate can be commonly used even if the distance between the first mold piece and the second mold piece is widened by the amount of the heat insulating material provided. .

It is a perspective view showing a part of formwork unit in the state before pouring concrete. FIG. 2 is a view showing a form unit including a part of an imaginary drawing of construction of a base body, and a sectional view showing a II-II section of FIG. 1. It is a figure which shows the vicinity of an angle, and is an expanded sectional view which expands and shows the III section of FIG. It is sectional drawing which shows the foundation part with a heat insulating material in the constructed house. It is an expanded sectional view which expands and shows the V section of FIG. 4 in the state which provided the drain cover using the top surface of a rising part, and the step part of mortar and a heat insulating material.

The present invention relates to a formwork unit for constructing a foundation with a heat insulating material, and a foundation heat insulation construction method using the formwork unit.
Below, the formwork unit and basic heat insulation construction method concerning the embodiment of the present invention are explained.

Note that the embodiments described below are for facilitating the understanding of the present invention, and do not limit the present invention.
That is, the present invention can be modified and improved without departing from the spirit thereof, and it is needless to say that the present invention includes combinations of the features according to the respective embodiments and modifications, and equivalents thereof. . And each member shown in each drawing is shown in consideration of the convenience of description, and the specific embodiment regarding the shape, size, thickness, etc. is not limited to the same one. , Different ones are also included.

<About the structure of the formwork unit>
First, the form unit U according to the present embodiment will be described with reference to FIGS. 1 to 3. Note that FIG. 1 is a perspective view showing a part of the formwork unit U in a state before pouring concrete. 2 is a view showing the form unit U, including a part of the imaginary drawing of the construction of the base body 10, a cross-sectional view showing the II-II cross section of FIG. 1, and FIG. It is a figure which shows and is an expanded sectional view which expands and shows the III section of FIG.

  The formwork unit U is for constructing a foundation 20 with a heat insulating material (see FIG. 4) having a base body 10 and a plate-shaped heat insulating material 4. Specifically, the mold unit U has a heat insulating material 4 arranged inside the mold 1 in advance, and is integrally cast when unillustrated concrete cast on the mold 1 is solidified. , For building the foundation 20 with a heat insulating material.

  The mold unit U holds the first mold piece 1a (, 1c) and the second mold piece 1b, the angle 5 as a support member attached to the upper part of the first mold piece 1a, and the anchor bolt 12. The anchor plate 3 as a holding plate and a main component.

The first formwork piece 1a (, 1c) and the second formwork piece 1b are arranged on the rebar base 6 shown in FIG. 2 so as to be lined up with the space 11 (, 21) in which concrete (not shown) is placed sandwiched therebetween. , Is fixed via the suspension metal fitting 7.
Further, a heat insulating material 4 is attached along the surface of the first mold piece 1a facing the second mold piece 1b side, while the second mold piece 1b side of the first mold piece 1c is attached. The heat insulating material 4 is not attached to the surface facing to. The heat insulating material 4 is fixed by a heat insulating material fastening fitting (not shown) mounted on the suspension fitting 7 shown in FIG.
That is, as shown in FIG. 1, the first mold piece 1a and the first mold piece 1c extend parallel to the second mold piece 1b, and the first mold piece 1a is It is arranged farther from the second mold piece 1b than the first mold piece 1c.

  The space 11 is a space between the first mold piece 1a and the second mold piece 1b, and as shown in FIG. 2, the thickness 4t of the heat insulating material 4 and the thickness 10t of the rising portion 10a of the base body 10 are equal to each other. Has a width of 11w. On the other hand, the space 21 is a space between the first mold piece 1c and the second mold piece 1b, and has a width corresponding to the thickness 10t of the rising portion 10a of the base body 10.

  The anchor plate 3 is a member for holding the anchor bolt 12 partially embedded in the base body 10, and in the present embodiment, is a member made of a plate material formed in a ladder shape. The anchor plate 3 has a predetermined mounting portion 3a extending in the extending direction so as to be bridged between the mounting portions 3a extending linearly at both ends in the short-side direction (width direction of the space 11) and the mounting portions 3a at both ends in the short-side direction. And a bridge portion 3b arranged at a distance. The anchor plate 3 is arranged so as to straddle the upper part of the angle 5, the upper part of the first mold piece 1c and the upper part of the second mold piece 1b, and is detachably attached by the locking pin 9.

  The angle 5 has a function of preventing concrete from being placed above the heat insulating material 4, while holding the other end of the anchor plate 3 having one end attached to the second mold piece 1b. The angle 5 has a substantially L-shaped cross section, and is composed of a mounting piece 5a and a hanging piece 5b extending substantially vertically from the end of the mounting piece 5a.

  The end of the mounting piece 5a of the angle 5 on the side of the first mold piece 1a is arranged so as to overlap the upper surface of the first mold piece 1a, and can be attached to and detached from the first mold piece 1a by the locking pin 9. It is locked. The attachment piece 5a horizontally extends in the width direction of the space 11, in other words, in the width direction of the rising portion 10a of the base body 10 constructed, to the second formwork piece 1b side. That is, the angle 5 is arranged between the upper part of the first mold piece 1a and the upper part of the second mold piece 1b. Further, an attachment portion 3a of the anchor plate 3 on the side of the first formwork piece 1a is arranged in an overlapping manner at an end portion of the attachment piece 5a on the side of the second formwork piece 1b. It is possible to install.

  The hanging piece 5b of the angle 5 extends vertically in the space 11 with the attachment piece 5a attached to the upper part of the first mold piece 1a, and the second mold piece 1b of the heat insulating material 4 is formed. It is arranged so that the lower end side of the hanging piece 5b is in surface contact with the upper part of the side surface on the side. Due to the angle 5 arranged in this way, the upper part of the space 11 is separated into the space 11a above the heat insulating material 4 and the space 11b in which the rising portion 10a of the foundation body 10 will be formed after the concrete is poured. Has been.

  It should be noted that, as shown in FIG. 1, the anchor plate 3 and the first plate 1a and the first frame 1c are connected to each other in the vicinity of a portion (a portion between the protruding corner portion and the entering corner portion) where the anchor plate 3 and first An angle 25 is provided as a supporting member arranged between the mold piece 1a.

The angle 25 is on the extension of the extending direction of the angle 5, and extends relatively shorter than the angle 5. In particular, the angle 25 has the same cross-sectional shape as the angle 5, and is composed of the mounting piece 25a and the hanging piece 25b, and is formed into a substantially L-shaped cross section, similarly to the angle 5 composed of the mounting piece 5a and the hanging piece 5b. Has been done. Note that, in FIG. 1, for convenience of description of the space 11 a above the heat insulating material 4, the angle 25 is shown by a chain double-dashed line, and the space 11 a above the heat insulating material 4 is shown penetrating therethrough. . The angle 25 is also fixed to the first frame piece 1a by the locking pin 9.
Thus, the angles 5 and 25 separate the space 11a above the heat insulating material 4 from the space 11b (corresponding to the space where the rising portion 10a is formed) where the rising portion 10a will be formed after the concrete is poured. Has been.

  Further, as described above, the first mold pieces 1a, 1c and the angles 5, 25, the angles 5, 25 and the anchor plate 3, and the anchor plate 3 and the second mold piece 1b are engaged with each other by the locking pins 9. It has been stopped. For this reason, by connecting / disconnecting the locking pin 9, these can be easily connected / separated, and the work of installing and removing the form unit U can be facilitated. Further, the locking pin 9 that is above the heat insulating material 4 and connects the anchor plate 3 and the angles 5 and 25 may be inserted into the heat insulating material 4. By doing so, it becomes possible to pour concrete while maintaining the position of the heat insulating material 4.

<Relationship of size of each member>
As described above with reference to FIG. 2, the width 11w of the space 11 between the first mold piece 1a and the second mold piece 1b is equal to the thickness 4t of the heat insulating material 4 and the thickness of the rising portion 10a constructed. It is equal to the width of the sum of 10t.
Further, in the anchor plate 3, the length 3x between the mounting holes 3c in the mounting portions 3a on both sides arranged in the width direction of the space 11 (the length between the locking pins 9 inserted into the mounting holes 3c) is The width of the space 11 is shorter than the width 11w. Therefore, the anchor plate 3 cannot be attached across the first mold piece 1a and the second mold piece 1b without the angle 5.
Conversely, by arranging the angle 5, the anchor plate 3 can be mounted so as to straddle the space 11. That is, by arranging the angle 5, the anchor plate 3 can be supported in the space 11. Therefore, according to the width 11w of the space 11 between the first mold piece 1a and the second mold piece 1b and the width of the space 21 between the first mold piece 1a and the first mold piece 1c, It is not necessary to prepare anchor plates 3 having different sizes. In other words, it is not necessary to prepare the anchor plates 3 having different sizes depending on the presence or absence of the heat insulating material 4 and the difference in the thickness of the heat insulating material 4.

<About the step between the heat insulating material and the top surface of the rising part>
Next, the step portion 15 between the heat insulating material 4 and the top end surface 10b (upper end surface) of the rising portion 10a will be described with reference to FIGS. 4 and 5. Note that FIG. 4 is a cross-sectional view showing a portion of the foundation 20 with a heat insulating material in the constructed house. Further, FIG. 5 is an enlarged cross-sectional view showing a state in which the drain cover 14 is provided by utilizing the top end surface 10b of the rising portion 10a and the step portion 15 between the mortar 10c and the heat insulating material 4 by enlarging the V portion of FIG. It is a figure.

  In the foundation 20 with a heat insulating material, which is integrally provided with the heat insulating material 4 along the side surface of the rising portion 10a of the base body 10, in order to prevent rainwater or the like from directly contacting the heat insulating material 4, the drain cover 14 is attached to the heat insulating material 4. It is suitable to be installed above. In the present embodiment, the wall panel 13 is attached above the mortar 10c that has been solidified on the upper end of the concrete portion of the rising portion 10a, and the draining cover 14 is provided at the lower end of the face material 13a that constitutes the wall panel 13. It is installed.

In this case, the heat-insulating material-equipped foundation 20 to which the heat-insulating material 4 is attached on the outdoor side of the rising portion 10 a is compared with the base body 10 to which the heat-insulating material 4 is not attached, and the drain cover 14 is equivalent to the heat-insulating material 4. Need to be placed outside. Since the drain cover 14 is obliquely inclined to guide the rainwater obliquely downward, a space between the drain cover 14 and the heat insulating material 4 below the drain cover 14 depends on the amount of protrusion to the outdoor side. Will be needed.
Therefore, a step portion 15 is formed between the top end surface 10b and the heat insulating material 4 so that the upper end of the heat insulating material 4 is located below the top end surface 10b of the rising portion 10a. .

This configuration is easily realized without cutting the heat insulating material 4 in order to make the upper end of the heat insulating material 4 lower than the top end surface 10b after the concrete is placed by the functions of the angles 5 and 25. Will be done.
As described above, the angles 5 and 25 are locked to the first mold piece 1a by the locking pins 9, and the hanging pieces 5b and 25b of the angles 5 and 25 are the first mold piece 1a and the second mold. The upper part of the space 11 between the frame piece 1b and the space 11a above the heat insulating material 4 is separated from the other space 11b.
The hanging pieces 5b and 25b thus formed can prevent the concrete from advancing to the space 11a above the heat insulating material 4 when the concrete is placed in the space 11b. Therefore, the angles 5 and 25 allow the rising portion 10a to be constructed such that the top end surface 10b of the rising portion 10a is located higher than the upper end of the heat insulating material 4.

<Basic insulation method>
The basic heat insulation construction method using the form unit U will be described.
First, the formwork unit U is brought to the construction site and prepared for foundation construction. Then, as an installation step, a reinforcing bar base 6, a reinforcing bar (not shown), a suspending metal fitting 7 and the like are installed on the reinforcing bar base 6, and the first mold piece 1a and the second mold piece 1b are mounted thereon. The heat insulating material 4 is installed between the mold piece 1a and the second mold piece 1b.

Next, in a support member attaching step, the angles 5 and 25 are arranged and attached on the first mold piece 1a in a direction projecting toward the second mold piece 1b. Specifically, by inserting the locking pin 9 into the mounting holes (not shown) of the mounting pieces 5a, 25a of the angles 5, 25 and the mounting hole (not shown) of the upper portion of the first mold piece 1a, 25 is mounted on the first mold piece 1a.
Then, as a plate mounting step, the anchor plate 3 is arranged and mounted so as to straddle the angles 5, 25 and the upper part of the second mold piece 1b in the width direction of the space 11. Specifically, by inserting the locking pin 9 into the mounting holes 3c of the anchor plate 3 and the mounting holes 5a, 25a of the angles 5, 25 (not shown), the anchor plate 3 is moved to the angles 5, 25 and It is attached to the upper part of the second form piece 1b. As a result, the anchor plate 3 is placed on the upper surfaces of the angles 5 and 25, and the angles 5 and 25 support the anchor plate 3 from below.

Then, in the pouring step, concrete is poured into the space 11, more specifically, the space 11b between the heat insulating material 4 and the second mold piece 1b, and the concrete is poured to a position higher than the heat insulating material 4. . By doing so, the heat insulating material-equipped foundation 20 having the step portion 15 between the heat insulating material 4 and the rising portion 10a is constructed.
According to the above-described foundation heat insulation method, by using the angles 5 and 25, the anchor plate 3 for the foundation without heat insulation material is used without using the special anchor plate 3 for constructing the foundation 20 with heat insulation material. Thus, the foundation 20 with a heat insulating material can be easily constructed.

  Furthermore, the angles 5 and 25 can prevent concrete from flowing into the upper part of the heat insulating material 4, and form the top end surface 10b of the rising portion 10a at a position higher than the heat insulating material 4. For this reason, since the step portion 15 can be formed without cutting off a part of the heat insulating material 4 after the concrete is poured, it is possible to omit the work of cutting the heat insulating material 4 so that the drain cover 14 can be attached. it can.

  In the above embodiment, the anchor plate 3 has been described as a member made of a plate material formed in a ladder shape. However, the anchor plate 3 only needs to be bridged between the second mold piece 1b and the angle 5 or the angle 25. That is, the anchor plate is not limited to the one formed in a ladder shape, and may be a plate material having a linear shape, or may be one formed in a flat plate shape.

Further, in the above embodiment, the angles 5 and 25 have been described as being formed in a substantially L-shaped cross section. However, the shape is not limited to such a shape, and in the upper portion of the space 11, the hanging pieces 5b and 25b are provided so as to separate the space 11a above the heat insulating material 4 and the other space 11b, and the first formwork is provided. Any shape may be used as long as it can be attached to the piece 1a. For example, T-shaped steel having a T-shaped cross section may be used.
Furthermore, two types of members, the angles 5 and 25, have been described as examples of members that hold the anchor plate 3. However, the invention of the present application is not limited to such a configuration, and may be composed of one type of angle, and may be composed of a plurality of types of angles so as to be compatible with a more complicated formwork 1. But it's okay. Furthermore, the size of each angle may be changed to a size suitable for the length of the space 11 in the width direction.

  Further, in the above-described embodiment, an example of constructing the linearly extending foundation 20 with a heat insulating material has been shown, but the present invention is applied to a portion linearly extending of the foundation 20 with a heat insulating material. However, the present invention is not limited to this, and may be applied to the projected corner portion or the entry corner portion. In this case, for example, the anchor plate has a substantially L-shaped cross section and is formed in a shape along the projected corner portion or the entered corner portion while separating the space 11a above the heat insulating material 4 and the other space 11b. Good.

1 Formwork 1a, 1c 1st formwork piece 1b 2nd formwork piece 3 Anchor plate (holding plate)
3a mounting part 3b bridging part 3c mounting hole 3d holding hole 3x length 4 heat insulating material 4t thickness 5 angle (supporting member)
5a Mounting piece 5b Hanging piece 6 Reinforcing bar base 7 Suspending metal fitting 9 Locking pin 10 Base body 10a Rising portion 10b Top end surface 10c Mortar 10t Thickness 11, 11a, 11b Space 11w width 12 Anchor bolt 13 Wall panel 13a Surface material 14 Drain cover 15 stepped portion 20 foundation with heat insulating material 21 space 25 angle (support member)
25a Mounting piece 25b Hanging piece U Formwork unit

Claims (5)

A formwork unit used for constructing a foundation with a heat insulating material having a base body having a rising portion and a heat insulating material attached along the rising portion of the base body,
A first mold piece and a second mold piece arranged with a space having a width of a sum of the thickness of the heat insulating material and the thickness of the rising portion of the basic body being sandwiched therebetween,
A holding plate that holds an anchor bolt partially embedded in the base body,
It is attached to the upper part of the first mold piece and extends in the width direction of the space toward the second mold piece side, and between the upper part of the first mold piece and the upper part of the second mold piece. And a support member arranged to support the holding plate,
The form unit, wherein the holding plate is installed so as to straddle the support member and an upper portion of the second form piece. The support member includes an attachment piece attached to an upper portion of the first mold piece, and a hanging piece extending substantially vertically from the attachment piece,
The hanging piece is configured such that, in a state where the attachment piece is attached to the upper part of the first mold piece, the hanging piece separates a space above the heat insulating material from a space in which the rising portion is formed. The form unit according to claim 1, which extends in the vertical direction in the space.   The mold unit according to claim 1 or 2, wherein the support member and the upper portion of the first mold piece or the holding plate are connected by a pin.   The mold unit according to claim 3, wherein the pin is inserted into the heat insulating material arranged in the space. Prepare the mold unit according to any one of claims 1 to 4,
An installation step of installing the heat insulating material between the first mold piece and the second mold piece,
After the installation step, a support member mounting step of mounting the support member on the upper side of the first mold piece so as to project toward the second mold piece side,
After the supporting member mounting step, a plate mounting step of mounting the holding plate so as to straddle the supporting member and the upper portion of the second mold piece in the width direction of the space,
A basic heat insulation construction method characterized by comprising.

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