JP2671918B2 - Roof structure of building - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a roof structure of a building, and particularly to a roof structure in a cold region where snow is accumulated on the roof.

[0002]

2. Description of the Related Art FIG. 5 is an explanatory view showing a conventional roof structure for a cold region. A roof structure constructed on an upper portion of a building 100 has a roof top 10 and a roof structure 2 extending in the direction of the outer wall of the building 100, respectively. It is composed of two roof surface portions 10a and 10b that steeply descend in the direction.

The building 100 is constructed on the site 200, but the site in the south direction X is further expanded in order to make the sunshine conditions better or to make the garden part having good sunshine conditions wider. It is preferable to take a large area and narrow the site in the north direction Y. However, in cold regions, there is a risk of snow on the roof, and in consideration of the fact that the snow on the roof falls along the steep slope to the ground, a space 300 for dropping snow in the north direction Y is provided. It is necessary to secure it.

Therefore, there is a problem that the north side Y of the site 200 cannot be effectively used.

FIG. 6 is an explanatory view showing an example of a conventional roof structure which solves the above-mentioned problems. In the roof structure shown in this figure, the roof portion is entirely from the outer wall side of the building 100 to the building 1
00 is formed as roof surfaces 20a, 20b that gently incline and descend, and drainage gutters 22 are provided at the intersections thereof.
Are formed.

In the roof structure having such a structure, unlike the roof structure shown in FIG. 5, there are no roof surfaces 10a and 10b which are inclined downward from the top 10 toward the outer wall of the building 100. In other words, the snow gathers on the side of the gutter 22 on the roof, melts, and flows through the gutter 22. Therefore, since it is not necessary to consider the fall of snow accumulated on the roof toward the outer wall, it is possible to construct the building 100 from the position closer to the end in the north direction Y in the site 200, and to construct the building 100 in the south direction. X
The site 200 of can be used more widely.

[0007]

However, in the roof structure shown in FIG. 6, it is not necessary to secure the site space in consideration of the fall of snow, but the roof top as shown in FIG. Since it does not exist, the design of the exterior structure of the roof is inferior, the attic cannot be secured, and there are structural restrictions that cannot be secured such as lighting from the roof.
In order to make these good, the roof top 1
It is preferable that 0 exists, but there is a problem in that it cannot be secured in the roof structure as shown in FIG.

Further, when the top 10 as shown in FIG. 5 is set and a roof surface descending and inclined from the top 10 toward the outer wall of the building 100 is provided, the snow fall as described above is caused. A space is taken into consideration, which causes a problem that it is difficult to effectively use the site 200.

OBJECT OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and its purpose is to improve the appearance of the roof in terms of design and to use the attic as a living or storage space. Another object of the present invention is to provide a roof structure for a building that has a structure that can be used for daylighting, etc. and that does not need to secure a site space in consideration of snow falling on the roof.

[0010]

In order to achieve the above object, the roof structure of a building according to claim 1 has a snowfall allowable range.
Built on a site that has an area and a snowfall prevention area,
The first outer wall facing the allowance region and the snowfall
A second outer wall provided facing the prevention area
A roof structure of a building, comprising a first roof surface portion that is steeply descended from the roof top toward the first outer wall of the building.
And a mountain-shaped roof that can secure an attic space inside,
From the second outer wall to the inside of the building with a gentle slope down ,
A second roof surface portion formed so as not to project from the outer wall of 2;
Note Standing vertically above the upper edge of the second roof surface,
And a snow retaining portion that matches the second outer wall
A snow-free roof, wherein the mountain-shaped roof is the snowfall-allowed
On the area side, the snowless roof is on the side of the snowfall prevention area.
It is characterized in that each is provided . Claim 2
The invention according to claim 1, wherein the snow-free roof is adjacent land.
Characterized in that it is provided close to the boundary line between
You. The invention according to claim 3 is the same as claim 1 or claim 2.
The mountain-shaped roof is located on the south side.
It is characterized by being. The invention described in claim 4 is the claim.
1 to 3, wherein the mountain-shaped roof and
The snow-free roof is the third roof that constitutes its own roof.
It is characterized by sharing the roof surface.

[0011]

[0012]

SUMMARY OF According to the roof structure of a building according to the invention of claim 1, wherein the above-described configuration, the falling snow allowable region side of the site roof surface portion (first to steeply inclined downward to the outer wall direction of the building from the roof top portion ya of the roof surface) Yes and mountain types that can ensure the attic space
The root has a roof surface part (second roof surface part) on the side of the snowfall prevention area, which is gently sloped inward from the outer wall side of the building.
It has at least a snow roof .

Therefore, in the first roof surface portion, the roof surface which slopes downward from the roof top toward the outer wall of the building can ensure a good appearance of the entire roof structure and the attic space, and the second roof surface portion. It is possible to secure at least one side portion that does not need to consider the fall of snow on the roof. Therefore, by arranging and constructing this second roof surface portion in the north side of the site, it is possible to construct a building up to the end of the site in the north direction. Also, this no snowfall
The second roof surface part that constitutes the roof is outside the building from the second outer wall.
Prevents snowfall on the site by not projecting to the side
The area can be minimized. And
The snowfall allowable area can be widened accordingly, and the site is effective.
It can be used. Furthermore, the snow-free roof is of the second roof surface part.
The second outer wall rising vertically upward from the upper end
By having a snow stop that matches the snowfall
The prevention function is very high.

Further, snow will fall outside the building on the first roof surface portion, but by constructing this first roof surface portion on the side where the site space can be widened, there is sufficient snow falling space. Can be secured. Claim 2
According to the invention, a snow-free roof is placed on the side close to the adjacent land.
By doing so, in order to prevent adverse effects on the adjacent land due to snowfall
The building is constructed without considering the provision of vacant land
It can be built, and effective use of the site can be planned
You. According to the invention of claim 3, the sunshine conditions are better
According to the invention of claim 4,
For example, make the roof structure more varied in appearance
be able to.

[0015]

[0016]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is an external view of a building having a roof structure according to the first embodiment of the present invention, in which a building 100 is constructed on a site 200.

In the roof structure of this embodiment, the snowfall allowable region side
The roof top 10 to the first outer wall 11 of the building 100
A first roof surface portion 12 forming a mountain-shaped roof is formed so as to descend downward in the 0a direction. The outer wall portion 1 is provided on the side of the second outer wall portion 110b of the building 100, which is the snowfall prevention region side.
No snowfall roof with a gentle downward slope from 10b toward the inside of the building
It is formed second roof surface 14 which forms a. A drain gutter 16 is provided on the lower inclined side of the second roof surface portion 14.

Further, in this embodiment, another roof surface portion 18 is formed between the roof top 10 and the drain gutter 16 and the other roof surface portion 18 is the same as the roof surface portion 12 described above. The roof surface portion 18a having a steep inclination angle and the roof surface portion 18b having a gentle inclination angle substantially similar to the second roof surface portion 14 are configured.

Further, the second roof surface portion 14 and the roof surface portion 18
The part b is formed at a position slightly lower than the uppermost part 120 of the outer line of the outer wall of the building 100, and forms the snow stopping part.
The uppermost portion 120 prevents the snow accumulated on the roof from being stopped so that it does not easily fall outward.

According to the roof structure of this embodiment, the building 10
Partition 4 00 0 of the outer wall portion 110b and the neighboring premises 200
It can be installed in a position close to. That is, the outer wall 1
On the side of the outer wall 110b having the second roof surface 14 that inclines from the side 10b toward the inside of the building 100, there is no fall of snow, so the position of the building is close to the partition 400 with the adjacent house. It is possible to make settings.

Therefore, the site 200 on the first roof surface 12 side
Can be secured widely. Then, snow falls on the first roof surface portion 12 side, but since the space of the site 200 is wide, the snow fall can be sufficiently permitted.

As described above, the first roof surface portion 12 that steeply descends from the roof top 10 toward the outer wall of the building can ensure a good appearance of the roof and the second roof surface portion
Due to the snowfall prevention function of the roof surface portion 14, the building on the north side of the site 200 can be effectively used, for example.

2 to 3 show another embodiment of the present invention, and FIG. 4 shows an example of the related art of the present invention . Elements similar to those of the embodiment of FIG. The symbol is attached.

FIG. 2 shows a roof structure between the first roof surface portion 12 and the gutter 16 which is composed of a roof surface portion 30 which is a third roof surface portion steeply descending from the roof top 10 toward the gutter 16. An example is shown. The lower end of the roof surface portion 30 faces the drain gutter 16 at the lower end of the second roof surface portion 14 formed on the outer wall portion 110b side. That is, the first roof surface
The part 12 and the roof surface part 30 form a mountain-shaped roof, and the second roof
The surface portion 14 and the roof surface portion 30 form a snow-free roof. Yamagata shop
The root and the snow-free roof share the roof surface portion 30.

Next, FIG. 3 shows the first roof surface portion 12 and the gutter 1.
The roof structure between 6 and 6 is a roof surface portion 4 which is a third roof surface portion which steeply descends from the roof top 10 toward the gutter 16.
An example configured with 0 is shown. In this case as well,
Similarly to the case, the first roof surface portion 12 and the roof surface portion 40 are mountain-shaped.
The roof is formed, and the second roof surface portion 14 and the roof surface portion 40 remain unchanged.
Form a snow roof. Yamagata roof and snow-free roof are roof surface 4
0 is shared.

As described above, the roof surface portions 30 and 40 that descend and incline from the roof top 10 to the gutter 16 can be configured in various forms, and the appearance of the roof is extremely good in design. Further, the second roof surface portion 1
4 and the gutter 16 for roof, the outer wall part 11 of one side
Falling of snow on the 0b side is effectively prevented as in the embodiment shown in FIG.

FIG. 4 further shows an example of the related art .
The characteristic structure of this example is that the roof top 10 is a mountain-shaped roof.
From the two first roof surface portions 12a and 1 which are inclined in two directions
2b is installed in substantially the center of the building, and the second roof surface portions 14a and 14b are formed from both the outer wall portions 110a and 110b of the building forming the snowless roof. Then, the second roof surface portions 14a and 14b and the first roof surface portion 1
Two drain gutters 16a for drainage at the intersection with 2a, 12b,
16b respectively.

According to this embodiment , it is possible to effectively prevent the snow from falling outward on both outer wall portions 110a and 110b on both sides of the building forming the snow stopper, and further from the roof top 10. Since it is possible to construct a roof surface part that descends and slopes, it is possible to secure the design of the exterior of the roof.

Further, since the first roof surface portions 12a and 12b can be formed with a certain degree of inclination from the roof top 10, the lighting windows 50a and 50b are formed in the first roof surface portions 12a and 12b. It is also possible.

The present invention is not limited to the above embodiments, and various modifications can be made within the scope of the invention. For example, the inclination angle of the first roof surface portion that is inclined downward from the roof top 10 can be variously changed, and the roof portion that extends between the roof top 10 and the drain gutter 16 can also have a predetermined position. Various modifications are possible such as changing the inclination angle with.

[0032]

As described above, claims 1 to 4 are described.
According to the roof structure of a building according to the invention, grounds falling snow unto
Ya chevron the capacity region side can be secured attic space have a first roof surface to the steep slope descending toward the outside building roof top unit
By chromatic roots, it is possible to ensure good design and attic space on the appearance of the roof, and it makes a successful
On the snow-prevention area side, a gentle incline descends from the outer wall side of the building
A snow-free roof with a roof surface part (second roof surface part)
Since it has one, it is possible to effectively prevent snow falling from the roof on one outer wall side.

As a result, the installation position on the outer wall side where snow can be prevented from falling from the roof can be moved to the end of the site space, and effective use of the building site in cold regions can be achieved. it can.

[Brief description of the drawings]

FIG. 1 is an external view of a building having a roof structure according to a first embodiment of the present invention.

FIG. 2 is an explanatory view of a roof structure according to another embodiment of the present invention.

FIG. 3 is an explanatory view of a roof structure according to another embodiment of the present invention.

FIG. 4 is an explanatory diagram of a roof structure of an example of the related art of the present invention.

FIG. 5 is an explanatory view of a conventional general roof structure.

FIG. 6 is an explanatory view of a conventional roof structure having no roof top.

Claims (4)

(57) [Claims] 1. A first outer wall which is constructed on a site having a snowfall allowable area and a snowfall prevention area, and which is provided facing the snowfall allowable area and a first outer wall which faces the snowfall prevention area. A roof structure of a building having two outer walls, having a first roof surface portion steeply descending from the roof top toward the first outer wall of the building, and securing an attic space inside A mountain-shaped roof that can be formed, a second roof surface portion that is formed to gently incline and descend from the second outer wall toward the inside of the building, and is formed so as not to project from the second outer wall, and an upper end of the second roof surface portion Standing vertically upward from the section,
And a snowless roof having a snow stopping portion that matches the second outer wall, the mountain-shaped roof is on the snowfall allowable area side, and the snowless roof is on the snowfall prevention area side. , The roof structure of the building characterized by being provided respectively. 2. The roof structure for a building according to claim 1, wherein the snow-free roof is provided close to a boundary line with an adjacent land. 3. The roof structure for a building according to claim 1 or 2, wherein the mountain-shaped roof is provided on the south side. 4. The mountain-shaped roof and the snow-free roof according to claim 1, wherein the mountain-shaped roof and the snow-free roof share a third roof surface portion that constitutes each roof. Roof structure of building.