JPH05171753A - Method and structure for water-proofing dormer part - Google Patents

Abstract

PURPOSE:To perform the water-proofing, which is performed by overlapping multiple rectangular water-proof sheets on a dormer roof in a conventional way, collectively at once by covering a water-proof sheet material, which is made of one sheet, CONSTITUTION:A wing wall of a dormer part or a dormer roof is covered with an end of a water-proof sheet, and the roof surface is covered with other part thereof, and a water-proof sheet material 20, which consists of a roof covering part 21 formed into a shape for covering a former roof, a wing wall covering part 22 formed into a shape for covering the wing wall, and extension parts 21a, 22a extended from the ends of the roof covering part 21 and the wing wall covering part 22, is used. The dormer roof and the end of the water- proof sheet, which is covered on the dormer roof, are covered with the roof covering part 21, and the sleeve wall and the end of the water-proof sheet, which is covered on the sleeve wall, are covered with the sleeve wall covering part 22, and the water-proof sheet on the roof surface is covered with the extension part 21a of the roof covering part 21 and the extension part 22a of the sleeve wall covering part 22.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproofing method and a waterproofing structure for a dorma portion provided on a roof surface of a house.

[0002]

2. Description of the Related Art There is known a structure in which a small daylighting window called a dome window is provided on the roof surface for daylighting or ventilation of the attic or stairs. This dorma window
The structure is such that a small sleeve wall is provided so as to project from the roof surface, a roof portion is provided on the sleeve wall, and a window is formed on a side portion of the sleeve wall. In addition to the above-mentioned purpose of daylighting and ventilation, this dormer window also serves as an important accent in the design of the house, and has the purpose of adding a high-class feeling to the aesthetics of the house.

However, since the dormer portion is a portion which is provided so as to project from the roof surface, there is a high possibility that it will become a portion having a problem in waterproofing the roof. That is, usually, in order to waterproof and finish the roof surface, it is common to put a waterproof sheet on the roof surface without any gaps, and apply roofing roof tile or tin roof as the roof finish on it. is there. However, if a protruding part such as a dormer window is provided on the roof surface as described above, depending on how the waterproof sheet attached to the boundary portion between the roof surface and the dome portion is attached, the boundary portion of the waterproof sheet or the joining There is a problem that the part tends to be inferior in waterproofness.

Here, a method of attaching a waterproof sheet in consideration of waterproofness in a conventional dome section having a dormer window will be described with reference to FIGS. 9 and 10. In FIG.
The dormer portion 1 is provided between the sleeve walls 3 and 3 protruding from the roof surface 2 and separated from each other, the dormer roof 4 provided on the sleeve walls 3 and 3, and the sleeve walls 3 and 3. The dome window portion 5 is formed.

In order to waterproof the roof surface 2 having the dormer portion 1, a roll-shaped waterproof sheet 6 having a width as large as possible and having a weight such that it can be moved to the roof on site is prepared. The waterproof sheet 6 is laid laterally along the roof surface 2 and laid, and necessary portions of the expanded waterproof sheet 6 are fixed to the roof surface 2 with a driving metal fitting such as staples. When the waterproof sheet 6 approaches the dormer portion 1, the end portion 6a of the waterproof sheet 6 is covered so as to reach the dormer roof 4 over the sleeve wall 3 as shown in FIG. In addition, the waterproof sheet 6 from the direction opposite to the dorma section 1
Similarly, the end portions are covered with the sleeve wall 3 or the dormer roof 4 over a predetermined range and cut out, and the necessary portions are fixed to the roof surface 2, the sleeve wall 3 and the dormer roof 4 with a driving metal fitting. Further, in the portion of the roof surface 2 on the front side of the dormer window portion 5 where the waterproof sheet 6 is not stretched, a waterproof sheet 7 cut into a shape capable of covering this portion is shown in FIG. Then, it is attached to the roof surface 2 and is fixed to the roof surface 2 with a metal fitting.

Next, a waterproof sheet 8 having the same width as that of the waterproof sheet 6 is prepared, and this sheet is cut at the site according to the shape and size of the dome roof 4. At this time, the waterproof sheet 8 is cut into a shape consisting of a rectangular waterproof sheet main body portion 8a and an extending piece 8b extended to an edge portion of the waterproof sheet main body portion 8a, and the waterproof sheet main body portion 8a is cut into a dome shape. Covering about half of the roof 4, the extending piece 8b is attached to the waterproof sheet 6 on the roof surface, and is fixed with a driving metal fitting such as staples. Next, prepare a similar waterproof sheet 8 and attach it to the remaining half of the dome roof 4, align the waterproof sheet 8 laid earlier and the edges with each other, and then drive in the metal fittings. The extension pieces 8a and 8b are attached to the waterproof sheet 6 and fixed by a driving metal fitting to perform waterproof construction. In the conventional waterproofing method described based on FIGS. 9 and 10, the waterproof sheet 6 ... And the waterproof sheets 8 and 8 are partially overlapped and stuck to each other to improve the waterproofness around the dormer portion 1, Good waterproofness.

On the other hand, another example of a method of attaching a waterproof sheet in consideration of waterproofness in a conventional dome part will be described with reference to FIGS. 11 and 12. In FIGS. 11 and 12, 1 is a dormer portion, 2 is a roof surface, 3 and 3 are sleeve walls, 4 is a dormer wall, and 5 is a dormer window portion.

In order to waterproof the roof surface 2 having the dormer portion 1, a roll of the waterproof sheet 10 is prepared, and the roll is laid laterally along the roof surface 2 and laid. Secure the required parts to the roof surface 2 with a fastener such as staples. Also, the waterproof sheet 10 is the dorma section 1.
When approaching, the end portion 10a of the waterproof sheet 10 is covered over the lower part of the sleeve wall 3 or the lower part 4 of the dormer roof over a predetermined area as shown in FIG. Further, the waterproof sheet 10 is also covered from the opposite direction of the dormer portion 1 as shown in FIG. 11, and the ends thereof are in the lower part of the sleeve wall 3 or the dormer roof 4 as described above.
Cut over the lower part of the cover over a predetermined range, and fix the required part to the roof surface 2 with a metal fitting. Furthermore, the dorma section 1
The roof sheet 2 on the front side of the window portion 5 of the waterproof sheet 11 having a cutout portion 11a formed in a shape capable of covering this portion.
Is attached so as to pass through the dormer portion 1, and a necessary portion is fixed with a driving metal fitting.

Next, a waterproof sheet 12 having the same width as that of the waterproof sheet 10 is prepared, the waterproof sheet 12 is covered on the dormer roof 4 and the sleeve wall 3, and necessary portions are fixed by tapping metal fittings such as staples. Cover with another tarpaulin,
The waterproof construction is carried out by paying attention to the overlapping portion with the edge portion of the waterproof sheet 12 laid earlier so as not to create a gap and then fixing it with a driving metal fitting. In the conventional construction method described based on FIG. 11 and FIG. 12, the waterproof sheet 10 and the waterproof sheet 12 are partially overlapped and stuck to each other, thereby improving the waterproof property around the dormer portion 1 and improving the waterproof property. It is good.

[0010]

By the way, conventionally, at a construction site, the waterproof sheets 6, 7 for the dorma section 1 are
Since there is no special designation on how to spread 10, 11, and 12, the conventional method described with reference to FIGS.
Alternatively, the conventional method described with reference to FIGS. 11 and 12 is adopted to waterproof the dorma section 1. However, the quality of the waterproof section is not stable regardless of which method is adopted. There is. That is, in any method, there is no difference in overlapping the end portions of the waterproof sheet, but since the overlapped portion is different in each method,
The position of the overlapped part will differ depending on the construction method. Then, depending on the sticking method, the boundary part of the overlapping sticking parts may be weak in terms of waterproofness.

On the other hand, when the waterproof sheets 8 and 12 are spread and fixed in conformity with the shape of the dormer portion 1, the waterproof sheets 8 and 12 are fixed in a state in which they are slightly displaced from the planned installation position. In some cases, a gap may be created between the abutting portions of the waterproof sheets 8 or between the abutting portions of the waterproof sheets 12, or an unnecessary overlapping portion may occur. In such a case, the waterproof sheets 8 and 12 are adjusted in such a manner as to be folded and abutted or cut in a complicated manner at the discretion of the site worker, and the quality of the waterproof construction portion is stable even in such a case. There was a problem not to do.

The present invention has been made in view of the above circumstances, and can be easily constructed so as not to cause a weak portion in terms of waterproofness, the quality of the waterproof portion can be stabilized, and the roof portion can be stabilized. The purpose is to provide a method capable of reducing the risk of work.

[0013]

In order to solve the above-mentioned problems, the invention according to claim 1 has a sleeve wall projecting from a roof surface, a dome roof provided on the sleeve wall, and a sleeve wall. In a waterproofing method for a dorma section, which comprises a dorma window section provided adjacent to the dome section, a plurality of tarpaulins of a predetermined width are provided on the roof surface around the dome section, and the end sections of each tarpaulin are Cover the dome roof or the dorma roof, cover the roof surface with the other parts, and then cover the dome roof with a roof covering and a sleeve wall extended to this roof covering. Using a waterproof sheet material consisting of a sleeve wall covering part having a covering shape, an extending part extending to the edge part of the roof covering part, and an extending part extending to the edge part of the sleeve wall covering part, Of the dome roof and the tarpaulin adhered to the dome roof in the roof covering portion of the tarpaulin material The end portion of the sleeve wall and the waterproof sheet adhered to the sleeve wall with the sleeve wall covering portion of the tarpaulin material, and the roof extension portion and the extension portion of the sleeve wall covering portion are roofed, respectively. It is to be attached to the waterproof sheet on the surface.

In order to solve the above-mentioned problems, the invention according to claim 2 is provided with a sleeve wall protruding from the roof surface, a dormer roof provided on the sleeve wall, and adjacent to the sleeve wall. In a waterproofing method for a dorma section including a dome window, a plurality of tarpaulins each having a predetermined width are provided on a roof surface around the dome section, and the end of each tarpaulin is a sleeve wall or a dome of the dome section. Cover the roof, cover the roof surface with other parts, and then attach, then prepare a waterproof sheet body with perforations that match the contour shape of the dome part, and pass the dome part through the perforation A tarpaulin body is attached to the surrounding roof surface, and then a dome roof is covered to cover the roof covering portion, a sleeve wall is covered to cover the sleeve wall covering portion, and the roof covering is formed. To the adherend that extends to the edge of the sleeve and to the edge of the sleeve wall covering A waterproof sheet material consisting of the covered part and the sleeve wall covering part of the waterproof sheet material covering a part of the sleeve wall and the waterproof sheet adhered to the sleeve wall, and the roof covering part of the waterproof sheet material is used as a dome. The tarpaulin covers a part of the roof and the tarpaulin adhered to the dorma roof, and the adhered part is adhered to the tarpaulin body on the roof surface.

In order to solve the above problems, the invention according to claim 3 is provided with a sleeve wall protruding from the roof surface, a dormer roof provided on the sleeve wall, and a side portion of the sleeve wall. In the laying structure of the roofing base material in the dorma section including the dorma window section, a plurality of waterproof sheets are attached to the roof surface around the dome section, and the contour shape of the dome section is formed around the dome section. A waterproof sheet body having matching through holes is attached to a waterproof sheet around the dormer portion by passing the dome portion through the through hole, and a waterproof sheet material covering the dome sleeve wall and the dome roof is provided on the waterproof sheet body. It is the one that is attached.

[0016]

[Function] If a waterproof sheet material having a size and shape capable of covering all of the dormer roof and the sleeve wall is prepared in advance and is bent at the site and fixed on the dormer portion, conventionally, a plurality of sheets will be used. Waterproofing work, which was performed while overlapping rectangular waterproof sheets on a dorma roof, can be done at once by covering with one sheet of waterproof sheet material. Therefore, the waterproof construction of the dorma roof is greatly simplified, the construction time is shortened, and the quality of the waterproof portion is stabilized. In addition, the work of sticking the waterproof sheet, which is a dangerous work that the site worker took a long time in an unstable place on the dormer roof, is simplified, and the work safety is improved.

Further, since the dormer roof and the sleeve wall are covered with one tarpaulin material, a butt joint portion or a superposition of the tarpaulin is provided as compared with the conventional structure in which a plurality of tarpaulins are spread and the dome portion is covered. The number of mating joints is reduced, and the portion with poor waterproofness is reduced, resulting in a highly waterproof structure.

Further, a waterproof sheet body having a size capable of covering the periphery of the dorma portion and a waterproof sheet material having a size capable of covering the dorma roof and the sleeve wall are prepared in advance. If these are to be installed and fixed on site, the waterproofing work that was conventionally done by stacking multiple rectangular waterproof sheets on the dome roof is covered with a single waterproof sheet material and waterproof sheet body. Therefore, it is possible to collectively and efficiently perform in a short time.

Further, the dormer roof and the sleeve walls are covered with one waterproof sheet material, and the periphery of the dome portion is covered with a waterproof sheet body, so that a plurality of waterproof sheets are spread and the dome portion is covered. As compared with the conventional structure, the number of joints of the waterproof sheet exposed on the surface is reduced, and the portion with poor waterproofness is reduced.

[0020]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a waterproof sheet material 20 used for carrying out the method of the present invention. This waterproof sheet material 20
Is attached to the dormer portion 1 described above with reference to FIGS. 9 to 12. The dormer portion 1 is composed of sleeve walls 3 and 3 protruding from the roof surface 2 and spaced apart from each other, a dormer roof 4 provided on the sleeve walls 3 and 3, and the sleeve walls 3 and 3. It is composed of a dormer window portion 5 formed therebetween.

The waterproof sheet material 20 is a roof covering portion 21, 2 having a shape capable of covering the entire upper surface of the dormer roof 4.
1, a triangular sleeve wall covering portion 22 capable of covering the entire surface of the sleeve wall 3, a roof covering portion 21, and a sleeve wall covering portion 2
It is comprised from the extension parts 21a and 22a extended in the peripheral part of 2. In addition, the boundary portion between the extending portion 21a and the extending portion 22a, and the boundary portion between the extending portions 21a, the cut portion a is formed respectively, each extending portion from the roof covering portion 21 alone, or, It can be folded alone from the sleeve wall covering portion 22. The waterproof sheet material 20 having such a configuration is manufactured in a factory or the like according to the size of the dormer portion 1 designed in advance.

In order to waterproof the dome part 1 on the roof using the waterproof sheet material 20, first, as in the case described above with reference to FIG. 11, a roll-shaped waterproof sheet is placed on the roof surface 2. 10 and 11 are spread and the waterproof sheets 10 and 11 are laid, and the end portion 10a of the waterproof sheet 10 is attached to the sleeve wall 3 or the dorma roof 4, and these are fixed with fixing fittings such as staples to the roof surface 2 and the sleeve wall 3. And Figure 1 on the required parts of the dorma roof 4
Fix in the same way as the state shown in 1.

Next, the waterproof sheet material 20 having the above-mentioned structure is carried in near the dome portion 1 on the roof at the construction site and folded back as shown in FIGS. In this folded state, as shown in FIG. 4, the roof covering portion 21 is covered on the dormer roof 4 of the dormer portion 1, the necessary portions of the covered portion are penetrated, and fixing fittings (staples) 25 ... The cover 21 is fixed. Further, it is needless to say that the roof covering portion 21 may be gradually covered with the dome roof 4 and the solid metal fitting 25 may be gradually hammered in and fixed without folding the entire roof covering portion 21 in advance. At this time, the driving direction of the staples 25 is set to match the gradient of the dormer roof 4. That is, it is assumed that the exposed portion (bar-shaped portion) of the staple 25, which penetrates the waterproof sheet 20 and is hammered into the dormer roof 4, is hammered along the roof slope. By driving in this way, the waterproofness can be prevented from being impaired.

After the roof covering portion 21 of the folded waterproof sheet material 20 is fixed, next, the folded sleeve wall covering portion 22 is lowered to cover the surface of the sleeve wall 3 with this.
The sleeve wall covering portion 22 is fixed to the sleeve wall 3 with fixing fittings 25 ....
Subsequently, the extension portion 21a of the roof covering portion 21 and the sleeve wall covering portion 22
Cover the waterproof sheet 10 on the roof surface with the extending portion 22a of
The staple 25 is driven in from above to fix the extension pieces 21a and 22a, respectively.

As described above, the dorma roof 4 and the sleeve wall 3
If a waterproof sheet 20 of a size capable of covering all of and is made in advance and is bent and fixed at the site, conventionally, a plurality of rectangular waterproof sheets are stacked on the dome roof 4 The waterproof construction that has been performed can be performed at once by covering with one sheet of the waterproof sheet material 20. Therefore, the waterproof construction can be greatly simplified and the construction time can be shortened. Further, as a result, it is possible to simplify the work of sticking the waterproof sheet, which is a dangerous work that the site worker took a long time in an unstable place on the dormer roof 4, and the construction time can be shortened. The safety of waterproof construction of the dorma roof is improved.

Further, in the waterproof structure odor finished as shown in FIG. 5, since the dormer roof 4 and the sleeve wall 3 are covered with one tarpaulin material 20, a plurality of tarpaulins are spread and the dome portion is formed. The number of joints of the waterproof sheet is smaller than that of the conventional structure covering 1 and the number of inferior waterproof portions is reduced, so that a highly waterproof structure can be obtained.

6 to 8 are for explaining an example of the method of the second invention. In this embodiment, first, FIG.
The waterproof sheet body 30 having the shape shown in is used. The waterproof sheet body 30 is composed of a rectangular waterproof sheet having a through hole 31 having a contour matching the planar shape of the dormer portion 1. The waterproof sheet body 30 is manufactured in advance in a factory and carried into a construction site for use.

In order to waterproof the dome part 1 on the roof using the waterproof sheet body 30, a roll-shaped waterproof sheet is spread on the roof surface 2 as in the case described above with reference to FIG. Waterproof sheet 10, 11 is laid, and the end portion 10a of the waterproof sheet 10 is adhered to the sleeve wall 3 or the dormer roof 4, and these are fixed to the roof surface 2, the sleeve wall 3 and the dormer roof 4 with fixing fittings such as staples. It is fixed to the required place in the same manner as the state shown in FIG.

Next, the waterproof sheet body 30 having the above structure is carried in near the dome portion 1 on the roof at the construction site, and the dome portion 1 is passed through the through hole 31 of the waterproof sheet body 30 on the roof surface as shown in FIG. The waterproof sheet body 30 is adhered onto the waterproof sheet 10 and the fixing metal fitting is driven into a necessary portion to fix it.
In this state, the end portion 10a of the waterproof sheet 10 attached to the sleeve wall 3 and the dormer roof 4 is exposed on the waterproof sheet body 30 as shown in FIG.

From here, the waterproof sheet material 20 used in the above example is stuck. When the waterproof sheet material 20 is folded back as shown in FIGS. 2 and 3, in this state, the waterproof sheet material 20 is fixed to the dormer roof 4 and the sleeve wall 3 as in the case described above. The fixed state is shown in FIG. As is clear in FIG. 8, the periphery of the dormer portion 1 has a structure in which the waterproof sheet 10, the waterproof sheet body 30, and the waterproof sheet material 20 are triple-coated.

As described above, the waterproof sheet body 30 and the dormer roof 4 each having a shape capable of covering the periphery of the dormer portion 1
If a waterproof sheet material 20 of a size capable of covering all the sleeve wall 3 and the sleeve wall 3 is created in advance in the factory and is installed and fixed on site, conventionally, a plurality of rectangular waterproof sheets will be used. It is possible to carry out the waterproofing work which has been performed while being piled up on the dormer roof 4 by covering one piece of the waterproof sheet material 20 and the waterproof sheet body 30 together. Therefore, the waterproof construction can be greatly simplified and the construction time can be shortened. Further, as a result, it is possible to simplify the work of sticking the waterproof sheet, which is a dangerous work that the site worker took a long time in an unstable place on the dormer roof 4, and the construction time can be shortened. The safety of waterproof construction of the dorma roof is improved.

Further, in the waterproof structure odor finished as shown in FIG. 8, the dome roof 4 and the sleeve wall 3 are covered with one waterproof sheet material 20, and the periphery of the dome portion 1 is covered with the waterproof sheet body 30. Since it is covered, the number of joints of the waterproof sheet exposed on the surface is smaller than that of the conventional structure in which a plurality of waterproof sheets are spread and the dome part 1 is covered, and the portion having poor waterproofness is reduced. A high structure can be obtained.

[0033]

As described above, according to the first aspect of the present invention, a waterproof sheet material having a size capable of covering the dome roof and the sleeve wall is prepared in advance and is bent at the site. If it is fixed by fixing it, it is possible to perform the waterproofing work that was conventionally done while stacking multiple rectangular waterproof sheets on the dorma roof at once by covering with one waterproof sheet material. .. Therefore, the waterproof construction of the dorma roof can be greatly simplified, and the construction time can be shortened. This also simplifies the work of sticking the tarpaulin, which is a dangerous work that took a long time in an unstable place on the dorma roof, and also shortens the construction time. The safety of waterproof construction is improved. Further, in the waterproof structure of the present invention, since the dorma roof and the sleeve wall are covered with one tarpaulin material, a waterproof sheet having a structure more waterproof than the conventional structure in which a plurality of tarpaulins are spread and the dome portion is covered. Since the number of joints is reduced and the number of inferior waterproof portions is reduced, it is possible to obtain a highly waterproof structure, and it is possible to provide a dome portion that does not cause rain leakage.

According to the second aspect of the present invention, a waterproof sheet body having a shape capable of covering the periphery of the dome portion,
If a dome roof and a tarpaulin material of a size that can cover all the sleeve walls are created in advance and this is installed and fixed on site, conventionally, a plurality of rectangular tarpaulins are used for dome roof. It is possible to carry out the waterproof construction which has been carried out while superposing them on each other at once by covering the waterproof sheet material and the waterproof sheet body with one sheet. Therefore, the waterproof construction can be greatly simplified and the construction time can be shortened. This also simplifies the work of sticking the tarpaulin, which is a dangerous work that took a long time in an unstable place on the dorma roof, and also shortens the construction time. The safety of waterproof construction is improved.

Further, in the waterproof structure odor of the present invention, since the dormer roof and the sleeve walls are covered with a single waterproof sheet material, and the periphery of the dome portion is also covered with the waterproof sheet body, a plurality of waterproof sheets are provided. Since the joint portion of the waterproof sheet exposed on the surface is smaller than the conventional structure in which the dome is covered and the dormer portion is covered, and the portion having poor waterproofness is reduced, a highly waterproof structure can be obtained.

[Brief description of drawings]

FIG. 1 is a plan view of a waterproof sheet material used for implementing the present invention.

FIG. 2 is a perspective view showing a folded state of the waterproof sheet material.

FIG. 3 is a side view showing a folded state of the waterproof sheet material.

FIG. 4 is a perspective view showing a state in which the waterproof sheet material is stuck to a dome portion.

FIG. 5 is a perspective view showing a fixed state of the waterproof sheet material.

FIG. 6 is a plan view of a waterproof sheet body used in an embodiment of the second invention.

FIG. 7 is a perspective view showing a state in which the waterproof sheet body shown in FIG. 6 is stuck.

FIG. 8 is a perspective view showing a state in which the waterproof sheet body and the waterproof sheet material shown in FIG. 1 are stuck together.

FIG. 9 is a perspective view showing a state in which a conventional waterproof sheet is being stretched.

FIG. 10 is a perspective view showing a state in which the conventional waterproof sheet is completely attached.

FIG. 11 is a perspective view showing another example of a conventional waterproof sheet in the middle of being stretched.

FIG. 12 is a perspective view showing another example of a conventional waterproof sheet in a completely attached state.

[Explanation of symbols]

 1 Dorma Section 2 Roof Surface 3 Sleeve Wall 4 Dorma Roof 5 Dorma Window Section 10 Waterproof Sheet 10a End 20 Waterproof Sheet Material 21 Roof Cover 21a Extension 22 Sleeve Wall Cover 22a Extension 30 Waterproof Sheet Body 31 Through Hole

Claims (3)

[Claims] 1. A sleeve wall provided so as to project from a roof surface,
In a waterproofing method for a dorma section, which comprises a dormer roof provided on the sleeve wall and a dome window section provided adjacent to the sleeve wall, a waterproof surface of a predetermined width is provided on a roof surface around the dome section. A plurality of sheets, each end of each tarpaulin is covered on the sleeve wall of the dorma section or the dorma roof, the roof surface is covered by the other part, and then the roof covering part of the shape that covers the dome roof A sleeve wall covering portion having a shape extending over the roof covering portion to cover the sleeve wall, an extending portion extending at an edge portion of the roof covering portion, and an extending portion at an edge portion of the sleeve wall covering portion. Using a waterproof sheet material consisting of the extended portion, the roof covering portion of the waterproof sheet material covers the end of the dome roof and the waterproof sheet adhered to the dome roof, and the sleeve wall covering portion of the waterproof sheet material is used. Cover the edges of the sleeve wall and the tarpaulin attached to the sleeve wall, and extend the roof covering and the sleeve wall cover. A waterproofing method for a dorma section, characterized in that the extending sections of the cover section are respectively attached to a waterproof sheet on the roof surface. 2. A sleeve wall provided so as to project from the roof surface,
In a waterproofing method for a dorma section, which comprises a dormer roof provided on the sleeve wall and a dome window section provided adjacent to the sleeve wall, a waterproof surface of a predetermined width is provided on a roof surface around the dome section. Put a plurality of sheets, cover the edge of each tarpaulin on the sleeve wall of the dome part or the dome roof, cover the roof surface with the other part, and then attach the transparent part that matches the contour shape of the dome part. The waterproof sheet body with holes is used, the dome portion is passed through the through hole, the waterproof sheet body is attached to the waterproof sheet and the roof surface around the dome portion, and then the dome roof is covered to cover the roof covering portion. A sleeve wall covering portion which covers the sleeve wall and is attached to the sleeve wall, an attaching portion extending to the edge portion of the roof covering portion, and an attaching portion extending to the edge portion of the sleeve wall covering portion. The roof of the waterproof sheet material is used for the dorma roof. Cover the end of the tarpaulin attached to the dorma roof, cover the sleeve wall and a part of the tarpaulin attached to the sleeve wall with the sleeve wall covering of the tarpaulin material, and extend the roof covering A waterproofing method for a dormer portion, characterized in that the extending portion of the sleeve wall covering portion is attached to a waterproof sheet body on a roof surface. 3. A sleeve wall provided so as to project from the roof surface,
In the laying structure of the roof base material in the dorma section, which comprises the dome roof provided on the sleeve wall and the dome window section provided on the side of the sleeve wall, the roof surface around the dome section is waterproofed. A plurality of sheets are attached, around the dormer portion, a waterproof sheet body having a through hole that matches the contour shape of the dormer portion is attached to the waterproof sheet around the dormer portion through the through hole. A waterproof structure for the dorma section, characterized in that a waterproof sheet material covering the sleeve wall of the dome section and the dome roof is applied on the waterproof sheet body.