JP7777415B2 - fireproof buildings - Google Patents

Description

The present invention relates to fire-resistant buildings, and in particular to fire-resistant buildings equipped with parting walls that are fire-resistant and sound-insulating.

BACKGROUND ART Conventionally, buildings have been constructed in which dwelling units are adjacent to one another, such as apartment buildings and row houses, and these buildings have partition walls separating adjacent dwelling units.
For example, the specifications issued by the Ministry of Construction and the Minister's certification based on the Building Standards Act require that the parting walls have a certain level of fire resistance and sound insulation performance. In addition, the Enforcement Order of the Building Standards Act requires that the parting walls have a semi-fireproof structure and reach the attic or ceiling.
To satisfy the above fire resistance and sound insulation requirements, a typical parting wall is constructed by attaching gypsum boards to both sides of a parting wall frame with studs to form a hollow gypsum board wall, and filling the interior of the gypsum board wall with glass wool or rock wool, and the parting wall extends to the attic or ceiling (see, for example, Patent Documents 1 and 2).

Japanese Patent Application Laid-Open No. 2014-196659 JP 2013-194475 A

In buildings having hollow parting walls as described above, in order to satisfy fire resistance and sound insulation performance, it is necessary to perform wet gap treatment using fire-resistant putty, for example, and to lay two layers of gypsum boards, which makes the fitting structure of the parting walls relatively complicated.
In addition, there were many items to be checked for compliance at the construction site as specified in the Ministry of Construction Notification Specifications and Ministerial Certification Specifications regarding fire resistance and sound insulation performance, which made the construction procedures difficult to understand.
Therefore, there has been a demand for improving the workability of the fitting structure of parting walls, which require fire resistance and sound insulation.
Specifically, there was a need to simplify the construction procedures for parting wall fitting structures and to make it easier to check compatibility at the construction site.More specifically, there was a need to clearly separate the line that ensures fire resistance and the line that ensures sound insulation in the combination of parting walls and ceilings, thereby simplifying the construction procedures and checking compatibility at the construction site.

In addition to meeting fire resistance and sound insulation requirements, the design of the parting wall fitting structure required ingenuity to ensure a support structure (support performance) that complied with the Building Standards Act.
For example, there has been a demand for a more appropriate support structure for the parting wall relative to the building frame by configuring the building frame (e.g., beams) as part of the parting wall.

The present invention has been made in consideration of the above-mentioned problems, and an object of the present invention is to provide a fire-resistant building that can improve the ease of construction in a parting wall fitting structure that satisfies fire resistance and sound insulation performance.
Another object of the present invention is to provide a fire-resistant building that makes it easy to understand the construction procedures for the parting wall fitting structure and makes it easy to check compatibility at the construction site.
Another object of the present invention is to provide a fire-resistant building that satisfies the support structure (support performance) requirements of the Building Standards Act when designing the fitting structure of parting walls.

The above problem is solved by a fireproof building of the present invention, which is a fireproof building provided with a parting wall having fire resistance and sound insulation properties, wherein the parting wall has a fireproof panel and first and second sound-insulating members that are provided at positions sandwiching the panel in a thickness direction of the parting wall, the panel of the parting wall extending from the foundation of the fireproof building to reach the attic, and the first and second members are arranged at positions in the parting wall that do not reach the attic, and the panel is located in the attic or ceiling space. The problem is solved by the fact that the panel is supported from above or below by beams that extend along the panel and are covered with fiber-based insulation, the panel being composed of a plurality of panels, and having a first panel that is supported from above by a first beam that is covered with fiber-based insulation in the attic, and a second panel that is positioned in the attic above the first beam and a second beam that is covered with fiber-based insulation, and is supported by the first beam and the second beam .

With the above configuration, it is possible to realize a fire-resistant building that can improve workability in a parting wall fitting structure that satisfies fire resistance and sound insulation performance.
More specifically, the parting wall has a fire-resistant panel and first and second sound-insulating members sandwiching the panel therebetween, and the panel of the parting wall extends from the foundation to the attic (shed).
Therefore, first, the fire resistance of the parting wall can be ensured by the "fire-resistant panel" that extends from the foundation to the attic. Second, the sound insulation performance of the parting wall (partition wall) between dwelling units can be ensured by combining the "fire-resistant panel" with the "first and second members." Furthermore, unlike conventional methods, it is not necessary to extend the entire parting wall structure to the attic; simply extending the "fire-resistant panel" to the attic is sufficient, simplifying the fitting structure of the parting wall.
In other words, this makes the construction procedure easier to understand and makes it easier to check compatibility at the construction site. More specifically, by using only "fire-resistant panels" as a fire-resistant structure extending from the foundation to the attic, the compatibility of the parting wall's fire compartment can be ensured through construction work.

Furthermore, with the above-described configuration, when designing the fitting structure of the parting wall, a fire-resistant building can be realized that satisfies the support structure (support performance) required by the Building Standards Act.
Specifically, the "fire-resistant panel" is supported from above or below by "beams" that run alongside the panel in the attic or ceiling and are covered with fiber-based insulation.
Therefore, the building's framework (beams) can be configured as part of the parting wall, making the support structure of the parting wall relative to the framework more appropriate.
In addition, because the "beams" are covered with fiber-based insulation material (e.g., fire-resistant coating material), the fire resistance of the parting wall can be ensured even when the "beams" are configured as part of the parting wall.
Furthermore, with the above-described configuration, the building's framework (beams) can be configured as part of the parting wall in both the attic and ceiling, thereby making the support structure of the parting wall relative to the framework more appropriate.

In this case , the panel further has a third panel supported from above by a third beam covered with fiber-based insulation material in the attic, and the third beam is arranged between the first panel and the third panel in the vertical direction, and supports the first panel and the third panel, respectively.
With the above-mentioned configuration, floor panels can be installed in advance on the beams placed in the attic and ceiling. This allows the floor panels to be used as a work floor, allowing for efficient construction work on the building.
In addition, if the building's framework (beams) is configured as part of the parting wall in the attic (roof framing), the fitting structure does not use a truss structure, because if a truss structure were used, the panels supported by the beams would interfere with the truss.

The above-mentioned problem can also be solved by a fireproof building provided with a parting wall that is fire-resistant and sound-insulating, the parting wall comprising a fire-resistant panel and first and second sound-insulating members that are disposed at positions sandwiching the panel in a thickness direction of the parting wall, the panel of the parting wall extending from the foundation of the fireproof building to the attic, the first and second members being disposed at positions in the parting wall that do not reach the attic, the panel being supported from above or below by beams that extend along the panel in the attic or ceiling and are covered with fiber-based insulation , and the parting wall further comprising fiber-based insulation between the panel and the first member in the thickness direction of the parting wall.
By incorporating the fiber-based insulation material as described above , the sound insulation performance of the partition walls between dwelling units can be further improved. In addition, by using fire-resistant rock wool, for example, construction can be carried out using a dry construction method.

The above-mentioned problem can also be solved by a fireproof building provided with a parting wall having fire resistance and sound insulation, the parting wall comprising a fireproof panel and first and second members having sound insulation properties and disposed at positions sandwiching the panel in the thickness direction of the parting wall, the panel of the parting wall extending from the foundation of the fireproof building to the attic, the first and second members being disposed at positions in the parting wall not reaching the attic, the panel being supported from above or below by beams extending along the panel in the attic or ceiling and covered with fiber-based insulation material, and the fireproof building comprising first and second ceilings disposed at positions sandwiching the parting wall and having sound insulation properties.
With the above-mentioned configuration, sound insulation performance in the attic can be ensured by a sound-insulating ceiling. This allows construction management to clearly distinguish between "the line that ensures fire resistance" and "the line that ensures sound insulation" in the combination of parting walls and ceilings.
Specifically, the fire-resistant "panels" of the parting walls extend all the way up to the attic. The fitting of these panels completes the "line ensuring fire resistance" of the parting walls. In the partition walls between the dwelling units, the fitting of sound-insulating boards creates the "line ensuring sound insulation." And in the attic, the fitting of the sound-insulating ceiling creates the "line ensuring sound insulation."

In this case, the fireproof building is preferably provided with a fibrous insulation material having sound insulation properties, which is attached to the underside of each of the first ceiling and the second ceiling.
With the above configuration, the sound insulation of the parting wall in the attic can be further improved.

According to the fire-resistant building of the present invention, it is possible to improve the workability of the parting wall fitting structure that satisfies fire resistance and sound insulation performance.
It also makes it easier to understand the construction procedures for the parting wall fitting structure, and makes it easier to check compatibility at the construction site.
Furthermore, when designing the fitting structure of the parting wall, it becomes possible to satisfy the support structure (support performance) that complies with the Building Standards Act.

FIG. 1 is a perspective view of the exterior of a fire-resistant building having a parting wall fitting structure. FIG. 10 is a side cross-sectional view showing the fitting structure of the partition wall, illustrating the foundation structure including the partition wall. FIG. 1 is a side cross-sectional view showing the fitting structure of the partition wall, illustrating the intermediate floor structure including the partition wall. FIG. 1 is a side cross-sectional view showing the fitting structure of the parting wall, and is a diagram illustrating the roof assembly structure (attic structure) including the parting wall.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
This embodiment relates to an invention of a fireproof building that is equipped with a parting wall that has fire resistance and sound insulation, the parting wall having a fire-resistant cement-based panel (ALC panel) and first and second boards that have sound insulation and are arranged in positions sandwiching the cement-based panel in the thickness direction of the parting wall, the cement-based panel of the parting wall extending from the foundation of the fireproof building to reach the attic (shed), and the first and second members being arranged in positions in the parting wall that do not reach the attic.

As shown in FIG. 1, the building 1 of this embodiment is a row-type fireproof building in which dwelling units are adjacent to each other, such as an apartment building, a tenement house, or a dormitory, and is equipped with a parting wall 10 that is fire-resistant and sound-insulating.
"Fire-resistant buildings" includes not only fire-resistant buildings (buildings with fire-resistant structures based on the Building Standards Act) themselves, but also semi-fire-resistant buildings (buildings with semi-fire-resistant structures) and fire-prevention buildings (buildings with fire-prevention structures).
"Fire-resistant" means, for example, that the building satisfies the technical standards for fire resistance required by the Ministry of Construction's notification specifications or Minister-certified specifications. Specifically, this means that the parting walls are fire-resistant and reach the attic or ceiling.
"Having sound insulation properties" means, for example, that the technical standards for sound insulation performance required by the Ministry of Construction's notification specifications or the Minister's certification specifications are met. Specifically, the sound insulation structure of the parting wall must have a transmission loss for sound frequencies that is equal to or greater than a predetermined standard value.

As shown in Figures 2 to 4, the building 1 has a parting wall fitting structure that includes a reinforced concrete foundation 2 that serves as the base of the building 1, floor beams 3, steel columns 4 that are fixed to the top surface of the foundation 2 and support the superstructure of the building 1, and a parting wall 10 that is attached to the top surface of the foundation 2 via parting wall mounting brackets or the like.
As shown in Figure 2, the building 1 is provided with a first floor 20A and a second floor 20B that are supported from below by a foundation 2 and floor beams 3 and are positioned with a partition wall 10 in between, and as shown in Figure 3, a first ceiling 30A and a second ceiling 30B that are supported by columns 4, beams 5, the partition wall 10, etc. and are positioned with the partition wall 10 in between.
4, the building 1 further includes a roof 40 (sloped roof) supported by columns 4, beams 5, and parting walls 10. The roof 40 may be a flat roof.

As shown in Figures 2 to 4, the parting wall 10 comprises a fire-resistant cementitious panel 11, sound-insulating first and second boards 12A and 12B that are positioned across the cementitious panel 11 in the thickness direction of the parting wall 10, a first insulating material 13A that is placed between the cementitious panel 11 and the first board 12A, and a second insulating material 13B that is placed between the cementitious panel 11 and the second board 12B.

The cement panel 11 is a thick panel formed from a cement material such as precast concrete (PC) or aerated concrete (ALC), and specifically, is an ALC panel for partition walls with a thickness of 75 mm or more and 150 mm or less.
By using ALC panels, it is possible to improve the fire resistance, sound insulation, and heat insulation performance of the parting wall 10. In addition, since the ALC panels are relatively light, it is also possible to improve the workability of the parting wall 10.
In addition to the above cement-based panels, CLT panels made of wood materials may also be used.

The first board 12A and the second board 12B are each made of gypsum board, and specifically, each is made of multiple layers (two layers) to ensure sound insulation performance.
It should be noted that plywood may be used instead of gypsum board, or other boards that can ensure sound insulation performance may be used.
Alternatively, instead of the board, a cement-based material such as mortar may be applied to both sides of the cement-based panel 11 to ensure the sound insulation performance of the parting wall 10.

The first insulating material 13A and the second insulating material 13B are each a fiber-based insulating material, specifically, spray-type glass wool or rock wool.
Instead of the spray type, a wrapping type of glass wool (rock wool) may be used.

As shown in FIG. 2, the first floor 20A and the second floor 20B are fire-resistant floors, specifically, structural plywood laminated with composite flooring.
Instead of structural plywood, gypsum board may be used, or other boards that can ensure sound insulation performance may be used.
A sound-insulating fiber-based heat insulating material 21 is attached to the underside of each of the first floor 20A and the second floor 20B to enhance sound-insulating performance.
The fiber-based heat insulating material 21 may be, for example, glass wool or rock wool.
The floor does not necessarily have to be fire-resistant, and the fiber-based heat insulating material 21 does not have to be attached to the underside of the floor.

As shown in FIG. 3, the first ceiling 30A and the second ceiling 30B are each fire-resistant ceilings, specifically, gypsum boards, each of which is laminated in multiple layers (two layers) to ensure sound insulation performance.
It is also possible to use plywood instead of gypsum board, or to use other boards that can ensure sound insulation performance. Furthermore, the ceilings 30A and 30b are not limited to multiple boards, and may be a single layer of board.
A sound-insulating fiber-based heat insulating material 31 is attached to the ceiling space of each of the first ceiling 30A and the second ceiling 30B in order to improve sound insulation performance.
The fiber-based heat insulating material 31 may be, for example, glass wool or rock wool.

<Parting wall fitting structure (fire resistance and sound insulation performance)>
As shown in FIGS. 2 to 4, the cement-based panel 11 of the parting wall 10 extends in the height direction of the building 1 from the foundation 2 through the ceiling space 6 and up to the attic space 7.
Specifically, only the cementitious panel 11 extends upward from the portion attached to the foundation 2 to the attic 7 and is attached to the roof 40 .
On the other hand, the first board 12A and the second board 12B are arranged at a position on the parting wall 10 that does not reach the attic 7.
Specifically, the first board 12A is disposed between the first floor 20A and the first ceiling 30A and attached to the first floor 20A and the first ceiling 30A. Similarly, the first insulating material 13A is disposed between the first floor 20A and the first ceiling 30A.
Further, the second board 12B is disposed between the second floor 20B and the second ceiling 30B and attached to the second floor 20B and the second ceiling 30B. Similarly, the second insulating material 13B is disposed between the second floor 20B and the second ceiling 30B.

The above-described fitting structure of the parting wall 10 ensures the "fire resistance" of the parting wall 10 by the cement-based panel 11 extending from the foundation 2 to the attic 7. Furthermore, the combination of the cement-based panel 11 and the first and second boards 12A, 12B ensures the "sound insulation" of the parting wall 10 (partition wall) between the dwelling units.
As a result, it is not necessary to extend the entire parting wall structure to the attic (shed) as in the past, and it is sufficient to extend the cement panel 11 to the attic, so that the fitting structure of the parting wall 10 can be simplified.

4, the "sound insulation performance" in the attic 7 can be ensured by a sound-insulating ceiling 30. By doing so, the construction management can be carried out by clearly separating the line for ensuring fire resistance and the line for ensuring sound insulation in the combination of the parting wall 10 and the ceiling 30.
Specifically, the fire-resistant cementitious panels 11 of the parting wall 10 extend to the attic 7. The fit of the cementitious panels 11 completes the line that ensures the fire resistance of the parting wall 10. In the partition walls between dwelling units, the fit of the sound-insulating boards 12 (gypsum boards) completes the line that ensures sound insulation. In the attic 7, the fit of the sound-insulating ceiling 30 completes the line that ensures sound insulation.
In addition, even in the foundation 2, a line that ensures sound insulation is created by fitting the sound-insulating floor 20.

With the above configuration, in a building 1 in which dwelling units are adjacent to each other, the construction procedure for the fitting structure of the parting wall 10 can be made easier to understand, and compatibility can be easily confirmed at the construction site.
Specifically, in the combination of the parting wall 10, floor 20 and ceiling 30, the line for ensuring fire resistance and the line for ensuring sound insulation can be clearly separated and simplified.

<Parting wall fitting structure (support performance)>
As shown in Figures 3 and 4, the cement-based panel 11 of the parting wall 10 extends along the cement-based panel 11 in the attic 6 or the attic 7 and is supported from above or below by beams 5 covered with fiber-based insulation material 5a.

First, the fitting structure of the attic 7 will be described with reference to FIG.
In the attic 7, the parting wall 10 is mainly composed of a cement panel 11 and a beam 5 covered with a heat insulating material 5a.
In other words, a part of the partition wall 10 is constituted by the beams 5 that support the cement-based panels 11 from above and below, and the cement-based panels 11 and the beams 5 are arranged side by side in the above and below direction.

The cement-based panel 11 is made up of a plurality of panels.
Specifically, the cement panel 11 has a first panel 11A supported from above by a first beam 5A in the attic 7, and a second panel 11B arranged vertically between the first beam 5A and a second beam 5B arranged at a position higher than the first beam 5A, and supported by the first beam 5A and the second beam 5B.
The beams 5 (5A, 5B) are steel beams made of H-shaped steel, and the entire surface (top, bottom, and both side surfaces) of the beams 5 is covered with heat insulating material 5a. The heat insulating material 5a is, for example, a wound-type rock wool. Note that the heat insulating material 5a is not limited to rock wool, and may be made of various materials such as glass wool, calcium silicate board, and ALC.
The first beam 5A corresponds to a roof beam and is arranged between the first panel 11A and the second panel 11B, and is connected to each of the first panel 11A and the second panel 11B via connecting fittings.
The second beam 5B corresponds to a roof beam, is disposed between the second panel 11B and the roof 40, and is connected to both the second panel 11B and the roof 40 via metal joints.

The cement-based panels 11 (11A, 11B) are arranged so as not to protrude outside the beams 5 (5A, 5B). In other words, they are formed to be narrower than the beams 5 and fit within the width of the beams 5. Strictly speaking, the cement-based panels 11 fit within the width (covering width) of the heat insulating material 5a that covers the periphery of the beams 5.
Therefore, when connecting a cement panel 11 to a beam 5, there is no need to form a cutout at the connecting portion of the panel 11 with the beam 5 that corresponds to the shape of another beam perpendicular to the beam 5 or the horizontal brace that is joined to the beam 5.

With the above configuration, the building's framework (beams 5) can be configured as part of the parting wall 10 in the attic 7, improving the support performance of the parting wall 10 relative to the framework. In other words, it can better comply with the support structure of the parting wall 10 required by the Building Standards Act.

Next, the fitting structure of the ceiling space 6 will be described with reference to FIG.
In the attic 6, the partition wall 10 is mainly composed of a cement panel 11 and a beam 5 covered with a heat insulating material 5a.
In other words, a part of the partition wall 10 is constituted by the beams 5 that support the cement-based panels 11 from above and below, and the cement-based panels 11 and the beams 5 are arranged side by side in the above and below direction.

Strictly speaking, the floor panel 22 is attached in a state where it is partially inserted into a predetermined position between the cement panel 11 and the beam 5 in the vertical direction. Specifically, the floor panel 22 is placed on and attached to the upper surface of the beam 5.
Even with this configuration, the cement panel 11 of the parting wall 10 can be said to extend in the height direction of the building 1 from the foundation 2, through the attic 6, and up to the attic 7.
Alternatively, the cement panel 11 of the parting wall 10 may be expressed as extending in the height direction of the building 1 from the foundation 2 to the attic 7 excluding the attic 6 .

The cementitious panel 11 further has a third panel 11C supported from above by a third beam 5C in the attic 6.
The third beam 5C corresponds to a ceiling beam, is disposed between the first panel 11A and the third panel 11C, and is connected to each of the first panel 11A and the third panel 11C via metal joints.

With the above configuration, the building's framework (beams 5) can be configured as part of the parting wall 10 in the attic 7, improving the support performance of the parting wall 10 relative to the framework. In other words, it can better comply with the support structure of the parting wall 10 required by the Building Standards Act.

<Other embodiments>
In the above embodiment, as shown in Figures 3 and 4, the cement-based panel 11 is supported from above and below by beams 5 covered with fiber-based insulation material 5a in the attic 6 and the attic 7, but this is not particularly limited and can be modified.
For example, the cement-based panel 11 may be configured to be supported by beams 5 in one of the ceiling space 6 and the attic space 7.

In the above embodiment, as shown in Figure 3, the floor panel 22 is installed in a partially recessed position in the attic 6 between the cement panel 11 and the beam 5 in the vertical direction, but this is not particularly limited and can be modified.
For example, the cement-based panel 11 (first panel 11A) may be attached to the upper surface of the beam 5 (third beam 5C). In this case, the left and right floor panels 22 may be arranged at a distance from each other so as to sandwich the cement-based panel 11 therebetween, and may be partially placed on the upper surface of the beam 5.

In the above embodiment, sound insulation of the ceiling 30 on each floor is ensured by the fitting structure of the parting walls shown in Figures 3 and 4. However, as an alternative structure, sound insulation may be ensured only for the ceiling 30 on the top floor, and sound insulation may be ensured on floors below the top floor by walls (parting walls) along the ALC panels 11.

In the above embodiment, the fire-resistant building provided with the parting wall according to the present invention has been mainly described.
However, the above embodiment is merely an example for facilitating understanding of the present invention, and does not limit the present invention. The present invention can be modified and improved without departing from the spirit thereof, and the present invention naturally includes equivalents thereof.

1 Buildings (fireproof buildings)
2 Foundation 3 Floor beam 4 Column 5 Beam 5a Insulation material (fiber insulation material)
5A First beam (first beam)
5B Second beam (second beam)
5C Third beam (third beam)
6 Attic 7 Attic (attic)
10 Partition wall 11 Cement panel (panel, fire-resistant panel, ALC panel)
11A First Panel (First Panel)
11B Second Panel (Second Panel)
11C Third Panel (Third Panel)
12 Board (gypsum board)
12A First board (first member, first gypsum board)
12B Second board (second member, second gypsum board)
13 Fiber-based insulation material 13A First insulation material 13B Second insulation material 20 Floor 20A First floor 20B Second floor 21 Fiber-based insulation material 30 Ceiling 30A First ceiling 30B Second ceiling 31 Fiber-based insulation material 40 Roof

Claims (5)

A fire-resistant building equipped with fire-resistant and sound-insulating parting walls,
The partition wall is
a fire-resistant panel;
a first member and a second member having sound insulation properties, the first member and the second member being provided at positions sandwiching the panel in a thickness direction of the partition wall;
The partition wall panel extends from the foundation of the fire-resistant building to the attic,
the first member and the second member are disposed in positions on the parting wall that do not reach the attic,
The panel is supported from above or below by a beam that extends along the panel in the attic or ceiling space and is covered with a fiber-based insulation material;
The panel comprises:
It consists of several panels,
a first panel supported from above by a first beam covered with a fiber-based insulation material in the attic;
A fire-resistant building characterized by having a second panel that is positioned in the attic between the first beam and a second beam that is positioned above the first beam and covered with fiber-based insulation, and is supported by the first beam and the second beam . The panel further includes a third panel supported from above by a third beam covered with a fiber-based insulation material in the attic space;
The fireproof building described in claim 1, characterized in that the third beam is arranged between the first panel and the third panel in the vertical direction and supports the first panel and the third panel, respectively. A fire-resistant building equipped with fire-resistant and sound-insulating parting walls,
The partition wall is
a fire-resistant panel;
a first member and a second member having sound insulation properties, the first member and the second member being provided at positions sandwiching the panel in a thickness direction of the partition wall;
The partition wall panel extends from the foundation of the fire-resistant building to the attic,
the first member and the second member are disposed in positions on the parting wall that do not reach the attic,
The panel is supported from above or below by a beam that extends along the panel in the attic or ceiling space and is covered with a fiber-based insulation material;
The fire-resistant building is characterized in that the partition wall further has a fiber-based insulating material between the panel and the first member in the thickness direction of the partition wall . A fire-resistant building equipped with fire-resistant and sound-insulating parting walls,
The partition wall is
a fire-resistant panel;
a first member and a second member having sound insulation properties, the first member and the second member being provided at positions sandwiching the panel in a thickness direction of the partition wall;
The partition wall panel extends from the foundation of the fire-resistant building to the attic,
the first member and the second member are disposed in positions on the parting wall that do not reach the attic,
The panel is supported from above or below by a beam that extends along the panel in the attic or ceiling space and is covered with a fiber-based insulation material;
The fireproof building is characterized in that it is provided with a first ceiling and a second ceiling, which are located on either side of the parting wall and have sound insulation properties . The fireproof building described in claim 4 , characterized in that the fireproof building is equipped with a fibrous insulation material with sound-insulating properties, which is installed in the ceiling space of each of the first ceiling and the second ceiling.