JP4049592B2 - Veranda waterproof structure and veranda waterproof construction method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a waterproof structure and a waterproof construction method for a veranda or balcony in an apartment.
[0002]
[Prior art]
Conventionally, in a waterproof structure on a veranda or balcony (hereinafter simply referred to as a veranda) in a condominium that is generally constructed, a water gradient is provided in advance on the floor base, and the waterproof construction is performed on the floor base. The floor surface (waterproof finish layer) is formed.
At this time, in order to prevent inundation to the indoor side, the water gradient is constructed so that the entrance / exit sash (window frame) side for partitioning the room and the veranda is on the water, and the entrance / exit sash is a floor of the waterproof finish layer. It is common to install with a step of 100 mm or more from the height.
[0003]
[Problems to be solved by the invention]
Nowadays, there is a demand for a barrier-free living space with no steps so that elderly people and wheelchairs can easily move inside the residence, and this is the same when going in and out of the veranda.
However, in the above-described waterproof structure of the veranda, the floor surface of the veranda (waterproofing) is provided so as to eliminate (or reduce) a step between the floor surface on the indoor side and the floor surface of the veranda (waterproof finish layer). If the installation position of the sash lower frame of the veranda is lowered with respect to the finishing layer), there is a limit naturally because it becomes easy to cause inundation to the indoor side.
[0004]
Furthermore, in actual construction sites, the bottom frame of the entrance / exit sash is often already installed when waterproofing the floor of the veranda. In that case, the installation position of the entrance / exit sash bottom frame is used in the conventional waterproof structure of the veranda. Lowering the height of the waterproof sheet laid on the waterproof base of the veranda will lower the workability, and in addition, the waterproof performance at the edge that is most important for waterproofing performance, Relying on the presser foot and the caulking material, not the waterproof sheet, there is a risk that the waterproof performance of the veranda itself may be hindered.
Moreover, in the conventional waterproof structure of the veranda, the water gradient of the veranda floor surface (waterproof finish layer) is created separately from the construction of the veranda housing, so the construction work of the veranda floor is dispersed and the construction period is prolonged. But it was.
[0005]
On the other hand, there is also a method of adjusting the step by laying mortar, a heat insulating material or a dry material on the waterproof layer after forming a water-graded waterproof layer in order to solve the problems of the waterproof structure of the veranda and the waterproof construction method described above. However, if any problem occurs in the waterproof performance of the waterproof layer, the discovery of the waterproof layer is delayed because the waterproof layer does not appear on the surface, and there is a concern that it may cause great damage.
[0006]
The present invention has been made in view of such a current situation. The purpose of the present invention is to exhibit excellent drainage performance and waterproof performance, and the height of the indoor floor surface and the waterproof finish layer of the veranda. It is an object of the present invention to provide a veranda waterproof structure and a veranda waterproof construction method that can make the level of the same surface and can shorten the construction period and reduce the cost.
[0007]
[Means for Solving the Problems]
In the waterproof structure of the veranda where the bottom frame of the entrance / exit sash for partitioning the room and the veranda is installed higher than the floor base surface of the veranda, the present invention that achieves such an object is provided with a height adjusting member on the floor base surface, A waterproof finish layer is formed by laying a waterproof sheet on the upper surface of the height adjusting member so as to have a water gradient toward the doorway sash direction and to be the same as the height of the indoor floor surface, and the waterproof finish A drainage side groove is provided between the layer and the lower frame of the entrance / exit sash, and the drainage side groove extends from the end of the height adjustment member to the edge of the waterproof sheet forming the waterproof finish layer. The water barrier plate is formed in a substantially concave shape over the side surface of the lower frame of the inlet / outlet sash, and a water stop plate is provided from the lower part of the lower frame of the door inlet / outlet sash to the drain side groove, Characterized by comprising ligated to tarpaulins and watertight shaped lower layer.
In the veranda waterproofing method according to the present invention, in the veranda where the lower frame of the entrance / exit sash for partitioning the room and the veranda is set higher than the floor undersurface of the veranda, the floor undersurface of the veranda is directed toward the entrance / exit sash. A height adjusting member having a water gradient and having a thickness adjusted so as to be substantially the same as the height of the indoor floor is installed at an appropriate interval along the lower frame of the entrance / exit sash. Forming a side groove for drainage along the bottom frame of the entrance / exit sash and the waterproof finish layer, covering the top surface of the height adjusting member with a waterproof sheet to form a waterproof finish layer, A water stop plate is provided at the lower part of the lower frame over the drain side groove, and the water stop plate is connected to the waterproof sheet in a watertight manner .
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a schematic plan view showing an example of a state where waterproofing is applied to a veranda, and a straight arrow in the figure represents a direction of a water gradient. FIG. 2 is an enlarged schematic cross-sectional view taken along line (X)-(X) in FIG.
[0009]
In the waterproof structure of the veranda according to the present invention, the lower frame B1 of the entrance / exit sash B that partitions the room and the veranda A is installed higher than the floor base surface A1 of the veranda A, and the floor base surface A1 of the veranda A has a horizontal form without a water gradient. The waterproof finish layer C is formed on the horizontal floor base surface A1 that has no water gradient and has a water gradient toward the entrance / exit sash B and the same height as the indoor floor surface D. Further, a drainage side groove E is formed between the lower frame B1 of the entrance / exit sash B and the waterproof finish layer C, and the drainage side groove E communicates with a drainage drain F provided in advance on the veranda housing of the veranda A. Connected to.
[0010]
The waterproof finish layer C is formed of a height adjusting member 1 laid directly on the floor base surface A1 of the veranda A and a waterproof sheet 2 laid to cover the upper surface of the height adjusting member 1.
[0011]
The height adjusting member 1 is for adjusting the height of the waterproof finish layer C to the same height as the height of the indoor floor surface D by providing a water gradient toward the entrance / exit sash B. As long as it is provided, there is no limitation on its shape and material. However, in the illustrated embodiment, a plurality of height adjusting plates 11 and an inorganic reinforcing plate 12 formed in a rectangular fixed shape with a predetermined thickness are used. Are stacked and mechanically fixed with an open leg anchor or nylon plug and a stainless steel fitting (not shown), thereby providing a water gradient from the handrail A2 side of the veranda A toward the entrance / exit sash B and the indoor side It is formed so as to be approximately the same height as the floor surface D (the height obtained by subtracting the thickness of the waterproof sheet 2 from the required height as the waterproof finish layer C).
As the height adjusting plate 11 used as the height adjusting member 1, a polyethylene foam, a polystyrene foam, a polypropylene foam or the like is used, and a concrete plate, a wood chip cement plate or the like is used as the inorganic reinforcing plate 12. Is preferred. At this time, when a plurality of inorganic reinforcing plates 12 are spread according to the area of the floor base surface A1 of the veranda A, the joint portion between the adjacent inorganic reinforcing plates 12 is treated with an insulating tape for buffering effect. It is preferable.
[0012]
The height adjusting member 1 is waterproofed with the lower frame B1 of the entrance / exit sash B by providing an appropriate gap with the lower frame B1 of the entrance / exit sash B when laid on the floor base surface A1 of the veranda A. It installs so that the side groove | channel E for drainage can be formed along with the finishing layer C.
And in order to make it easy to stick the waterproof sheet 2 to the end part (small edge part) of the height adjusting member 1 facing the drain side groove E side in consideration of the load resistance, it is the same quality as the waterproof sheet 2. It is preferable to install a steel plate (resin coated steel plate) 13 formed by laminating a thermoplastic resin. Similarly, in order to prevent the movement of the height adjusting plate 11 and the inorganic reinforcing plate 12 from being shifted at the same time as the rising corner of the handrail A2 side of the veranda A, the waterproof sheet 2 can be easily adhered. It is preferable to install a steel plate (resin coated steel plate) 14 formed by laminating a thermoplastic resin of the same quality as the waterproof sheet 2. These resin-coated steel plates 13 and 14 are mechanically fixed to the veranda A through the height adjusting member 1.
[0013]
As the waterproof sheet 2, a synthetic resin material that is normally used as this type of waterproof sheet can be used. Specifically, vinyl chloride resin, olefin resin, ethylene-vinyl acetate copolymer resin, thermoplastic elastomer (olefin, urethane, polyester, styrene, etc.), ethylene- (meth) acrylic acid copolymer , Thermoplastic synthetic resin such as ethylene- (meth) acrylic acid ester copolymer, acrylic ester resin, ethylene-propylene rubber, chloroprene rubber, etc., and one or more selected from these plasticizers, Stabilizers, fillers, ultraviolet absorbers, antioxidants, pigments, and the like are added as appropriate to form a flexible sheet having a thickness of about 1.0 to 3.0 mm. In this case, it may be a homogeneous sheet, or a composite sheet in which a nonwoven fabric, woven fabric, knitted fabric or the like made of polyester fiber, glass fiber or the like is laminated on the intermediate layer.
The waterproof sheet 2 is mechanically fixed on the upper surface of the height adjusting member 1 or using an adhesive such as epoxy resin, acrylonitrile / butadiene rubber, styrene / butadiene rubber, urethane resin, or acrylic resin. Bonded and fixed.
Moreover, it is preferable to apply anti-slip processing such as embossing to the waterproof sheet 2 so that a person walks, and another anti-slip sheet may be bonded on the waterproof sheet.
[0014]
Further, one end edge of the waterproof sheet 2, that is, the end edge portion 2 ′ on the handrail A 2 side of the veranda A is machined by using a presser foot 3 made of an aluminum angle material or the like that rises along the inner wall surface of the veranda A. And the other end edge, that is, the end edge portion 2 ″ on the side of the drainage side groove E is connected to the end portion of the height adjusting member 1 (the fore edge portion). ) Is arranged so as to substantially surround the drainage side groove E, and its end is connected in a watertight manner by adhesion or welding to a water stop plate 5 provided from the lower part of the lower frame B1 of the entrance / exit sash B to the drainage side groove E side. Is done.
[0015]
The drainage side groove E was formed at the same height as the indoor floor surface D on the floor base surface A1 of the veranda A and the lower frame B1 of the doorway sash B installed higher than the floor base surface A1 of the veranda A. Between the waterproof finish layer C, it is formed along the lower frame B1 of the doorway sash B. In this case, as shown in the illustrated embodiment, the edge portion 2 "of the waterproof sheet 2 forming the waterproof finish layer C is formed. May be formed in a substantially concave shape over the side surface of the lower frame B1 of the entrance / exit sash B from the end (small edge portion) of the height adjusting member 1 or formed in a substantially box shape with the upper part opened. The waterproof pan may be formed by installing it between the lower frame B1 of the entrance / exit sash B and the waterproof finish layer C. When the waterproof pan is used, the waterproof pan is made of a thermoplastic resin of the same quality as the waterproof sheet 2. Uses laminated steel plates (resin-coated steel plates) Forming Te, it is preferable to integrally welded to the tarpaulin 2.
[0016]
The drain side groove E is formed with a water gradient using the heat insulating material 7 and the inorganic reinforcing plate 8 so that the drain drain F is under water, and its upper opening is on the indoor floor surface. It is covered with a grating 6 installed at the same height as D, so that it can be opened and closed.
Here, the grating 6 is not particularly limited, but is preferably made of synthetic resin in that it is light in weight and low in cost and can prevent damage to the waterproof sheet, but it may be made of stainless steel or cast metal. Good.
Further, a water blowing prevention member 9 is provided in the drain side groove E near the lower frame B1 side of the entrance / exit sash B.
[0017]
On the other hand, at the lower part of the lower frame B1 of the entrance / exit sash B, a water stop plate 5 having a substantially inverted L-shaped cross section is provided over the drain side groove E side, and the water stop plate 5 is formed with a waterproof finish layer C. It is connected to the edge portion 2 "of the waterproof sheet 2 in a watertight manner.
[0018]
Next, the waterproof construction method of the veranda which concerns on this invention is demonstrated.
The floor ground surface A1 of the veranda A is constructed in a horizontal form without a water gradient, and the lower frame B1 of the entrance / exit sash B that partitions the room and the veranda A is installed higher than the floor base surface A1 of the veranda A, and below the entrance sash B A water stop plate 5 is provided in advance at the lower part of the frame B1 over the veranda A side.
[0019]
First, the drainage drain F is placed under water on the floor base surface A1 of the drainage side groove E on the floor base surface A1 so that the heat insulating material 7 and the inorganic reinforcing plate 8 are formed to be elongated according to the width of the drainage side groove E. Install with a water gradient.
[0020]
Next, the height adjusting plate 11 and the inorganic reinforcing plate 12 that become the height adjusting member 1 are overlapped on the horizontal floor base surface A1 having no water gradient, and between the lower frame B1 of the entrance / exit sash B. The drainage side grooves E are spread at intervals. At this time, the height adjustment member 1 and / or the inorganic reinforcing plate 12 having a predetermined gradient is used, and the height adjustment member 1 has a water gradient with its upper surface facing the entrance / exit sash B. And it adjusts so that it may become substantially the same height as the height of the indoor side floor surface D.
And the waterproof sheet 1 is laid so that the upper surface of this height adjustment member 1 may be covered, and the waterproof finish layer C is formed. The waterproof sheet 1 is bonded to the upper surface of the height adjusting member 1 using a required adhesive, and one end edge portion 2 'is raised along the inner wall surface of the veranda A, and the rising edge is pressed against the presser 3 At the same time, the caulking material 4 is applied and subjected to a watertight treatment, and the other edge portion 2 "side from the end portion (small edge portion) of the height adjusting member 1 to the side surface of the lower frame B1 of the entrance / exit sash B The water stop plate 5 is provided in a substantially concave shape so as to substantially surround the drainage side groove E, and the end of the other edge portion 2 "is provided in advance on the veranda A side below the lower frame B1 of the entrance / exit sash B. Are connected in a watertight manner by bonding or welding.
Thereafter, the water blowing preventing member 9 is disposed in the other side of the waterproof sheet 1 along the longitudinal direction of the drainage side groove E in the drainage side groove E and closer to the lower frame B1 side of the entrance / exit sash B. 2 "fixed by adhesion or welding.
Finally, the upper opening of the drainage side groove E is covered with a grating 6 installed at the same height as the indoor floor surface D so as to be freely opened and closed.
This completes the waterproof construction of the veranda.
[0021]
【The invention's effect】
According to the waterproof structure of the veranda of the present invention, in the veranda in which the lower frame of the entrance / exit sash that partitions the room and the veranda is installed higher than the floor undersurface of the veranda, the height adjusting member is installed on the floor undersurface, and the height A waterproofing finish layer is formed by laying the waterproof sheet on the upper surface of the adjustment member so as to have a water gradient toward the entrance / exit sash and to be the same as the height of the indoor floor, and the waterproof finish layer and the entrance / exit sash Since the drainage side groove is provided between the bottom frame and the bottom frame, excellent waterproof performance can be achieved, and the floor level on the indoor side and the level of the waterproof finish layer on the veranda are the same. It becomes possible easily. In other words, it is not necessary to form a water gradient during the construction of the veranda housing to form a water gradient on the veranda floor surface (waterproof finish layer), thus shortening the construction period of the veranda and reducing costs. can do. Moreover, even with a horizontal floor surface without a water gradient, excellent drainage performance can be exhibited and water pools are less likely to occur in the waterproof finish layer.
[0022]
Moreover, since the drain side gutter is formed by wrapping the edge of the waterproof sheet forming the waterproof finish layer from the end of the height adjusting member to the side surface of the lower frame of the entrance / exit sash in a substantially concave shape. In addition, it is possible to exhibit more reliable and excellent drainage performance and waterproof performance.
[0023]
In addition , a water stop plate is provided from the lower part of the bottom frame of the entrance / exit sash to the side of the drain side groove, and the water stop plate is connected in a watertight manner to the waterproof sheet of the waterproof finish layer. Performance can be demonstrated.
[0024]
And , since the water blow prevention member is provided in the drain side groove near the entrance / exit sash side, it prevents the water remaining in the side groove after the rain from being blown to the sash lower frame surface by wind. Can be done.
[Brief description of the drawings]
FIG. 1 is a schematic plan view showing an example of a waterproof structure for a veranda according to the present invention.
FIG. 2 is an enlarged schematic cross-sectional view taken along line (X)-(X) in FIG.
[Explanation of symbols]
A: Veranda A1: Floor base surface B: Entrance sash B B1: Bottom frame of entrance sash C: Waterproof finish layer D: Indoor side floor E: Drain side groove EF: Drain for drain 1: Height adjusting member 2: Waterproof Sheet 5: Water stop plate 6: Grating 9: Water blowing prevention member

Claims (3)

In the waterproof structure of the veranda where the lower frame of the doorway sash that partitions the room and the veranda is set higher than the floor underside of the veranda,
A height adjustment member is installed on the floor surface, and a waterproof sheet is laid on the upper surface of the height adjustment member so as to have a water gradient toward the entrance / exit sash and to be the same as the height of the indoor floor. To form a waterproof finish layer,
A drainage side groove is provided between the waterproof finish layer and the lower frame of the doorway sash ,
The drainage side groove is formed by wrapping the edge of the waterproof sheet forming the waterproof finish layer from the end of the height adjusting member to the lower frame side surface of the entrance / exit sash in a substantially concave shape. ,
A waterproof structure for a veranda, characterized in that a waterproof plate is provided from the lower part of the bottom of the entrance / exit sash to the side of the drain side groove, and the waterproof plate is connected to the waterproof sheet of the waterproof finish layer in a watertight manner . The waterproof structure for a veranda according to claim 1, wherein a water blowing prevention member is provided inside the drain side groove and closer to the entrance / exit sash side.   In the veranda in which the lower frame of the entrance / exit sash for partitioning the room and the veranda is set higher than the floor undersurface of the veranda, the floor undersurface of the veranda has a water gradient toward the entrance / exit sash and the floor of the indoor side A height adjusting member whose thickness is adjusted to be substantially the same as the height is installed at an appropriate interval along the lower frame of the entrance / exit sash, thereby providing a bottom frame of the entrance / exit sash and the waterproof finish layer. A drainage side groove is formed between the upper and lower surfaces, a waterproof sheet is formed on the upper surface of the height adjustment member, and a waterproof finish layer is formed. A waterproof construction method for a veranda, characterized in that a plate is provided and the water stop plate is connected to the waterproof sheet in a watertight manner.

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