JP2000248692A - Waterproof construction for balcony - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a barrier-free type waterproof construction capable of making the installation height for an entrance sash frame and the height of balcony floor height equal to the height of floor surface at the room side regardless of size and shape of balcony without creating no problem in drain performance and waterproof performance. SOLUTION: A waterproof layer 1 is formed on a horizontal floor surface without creating a backing surface having a slope to a balcony. In addition, insulation 4 having a constant thickness and a recessed drain gutter is laid on the rear surface and moreover a dry type incombustible material 2 having rear legs and the same drain function is laid in the top layer. At this time, the thicknesses of insulation 4 and dry type incombustible material 2 are established and also the height of the sash frame at the entrance is set.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to waterproofing floors such as flat roofs and balconies of buildings, regardless of the area and shape of the construction site, and the height level of the construction surface and the height of the entrance sash frame. The present invention relates to a waterproof structure (so-called barrier-free structure) intended to be the same as the indoor floor height.

[0002]

2. Description of the Related Art Conventionally, a waterproof structure of a flat roof or a balcony is constructed by using a wooden or mortar structure in a construction work to create a waterproof base with a water gradient to facilitate drainage of rainwater and prevent puddles from being generated. , And then waterproofing work. At this time, since the water gradient is generally made so that the sash side of the entrance is above the water, the more the width of the balcony, the higher the floor surface on the sash side. On the other hand, since the mounting height of the entrance sash is determined according to the waterproof floor surface height, in consideration of securing the waterproof performance, it is common that the sash comes further higher than the waterproof floor surface by 100 mm or more. .

[0003]

SUMMARY OF THE INVENTION When designing a barrier-free house in consideration of the elderly, the height of the sash attached to the entrance and exit of the balcony is made lower, so that there is almost no step with the indoor floor. In order to achieve this, the conventional waterproof structure cannot be used, and simply lowering the height of the sash may impair the waterproof performance of the balcony.

[0004] Further, since the waterproof layer is on the uppermost layer, if an effect of preventing dew condensation is to be provided by using a heat insulating material in the base material, the waterproof layer that is almost impervious to water vapor is on the low temperature side of the outdoors. For this reason, the structure cannot prevent dew condensation inside the heat insulating material.

Further, when the rising surface of the balcony has a fireproof structure, the floor surface is slanted, so that if a general drainage material is mounted horizontally, a portion where the waterproof layer is exposed is inevitably formed. However, it was necessary to separately perform fire prevention treatment.

[0006]

According to the present invention, a waterproof layer is formed on a waterproof base without a water gradient, and a dry incombustible material with a sole on it (for example, Utility Model Registration No. 3055778).
No.) directly, or after laying down a certain thickness of insulation (called insulation with drainage grooves), which has an uneven drainage structure that facilitates drainage on the back, and then dry incombustible material. It is characterized by being laid.

[0007] With this material composition, the finished floor surface is horizontal, but rainwater is easily drained to the lower layer through joints and the like of the dry incombustible material, and no puddles are generated on the finished surface.

[0008] Since there is a horizontal finish with no water gradient, the height of the entrance sash can be kept to a minimum, thereby making it possible to make a state in which there is almost no step with the indoor floor. Even in this case, since the waterproof layer on the floor surface is located at a position somewhat lower than the sash mounting position, even if there is heavy rainfall enough to store water, there is no concern that the waterproof layer immediately overflows to the indoor side.

Further, since the sheet metal drainage material can be attached to the wall surface along the height of the finished surface, the waterproof layer on the rising surface is not exposed, and if a siding or the like is attached above the drainage material, the entire surface of the balcony is fireproof. Structure.

Due to such a structure, the waterproof layer is not directly exposed to sunlight, and the durability of the waterproof material which is generally sensitive to ultraviolet rays is remarkably improved.

[0011]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a sectional view of a balcony on the second floor. First, the waterproof layer 1 is formed on the floor surface in the balcony and the surrounding rising surface. Next, the heat insulating materials 4 with drainage grooves are laid on the floor. At this time, by leaving a gap of about 10 to 15 mm from the surrounding rising surface, the water is drained to the lower layer from the outer peripheral portion.

Further, a dry noncombustible material (with back feet) 2 is laid on the heat insulating material. At this time, a space of about 10 to 15 mm is also laid out from the rising surface, but the space around the lower frame of the entrance sash is always a walking surface so that no space is formed.

It is desirable to attach the entrance sash frame after forming the waterproof layer 1 and then attach it. In this case, in order to ensure waterproof performance, a sealing material is applied to the waterproof surface at the sash attachment position, and then the sash frame is attached. It is good to attach.

The thickness of the heat insulating material, the thickness of the dry non-combustible material, and the height of the entrance sash frame must be set appropriately in accordance with the finished height of the indoor floor surface. It is desirable to adjust only the thickness. As an example, if the indoor floor height is 75 mm, the thickness of the heat insulating material is 50 mm, and if the thickness of the dry non-combustible material is 25 mm, the total thickness is 75 mm. Will be set to the height. This height level is 200, which is the conventional general height level.
Even when compared to mm or more, the level is considerably lower.

The drainage structure of the heat insulating material and the structure of the back foot of the dry incombustible material may be arbitrarily determined in consideration of practicality such as bending strength. Alternatively, the above member may be separately inserted and used instead.

FIG. 2 is a sectional view in which the drainage portion is accommodated. When the vertically drained drain 11 is used, it is important to lay the heat insulating material so that the protrusion of the heat insulating material does not come over the drain port.

With such a structure, rainwater first flows into the gap between the heat insulating material and the dry non-combustible material from the joint gap of the dry non-combustible material and the outer circumferential gap, and then flows down into the gap between the heat insulating material and the waterproof layer. Is drained to the outside from the drain.

On the rising surface, a sheet metal drainer 10 is mounted horizontally except for a sash frame portion, and then the siding 9
By attaching the, the wall surface and the floor surface are completely covered with the non-combustible material, and a finished structure excellent in fire prevention performance is obtained. At this time, it is desirable to provide a gap of about 5 to 10 mm between the sheet metal drainage material 10 and the dry incombustible material 2 so that rainwater can easily flow down from the outer peripheral portion to the lower layer.

[0019]

Since the present invention is configured as described above, it has the following effects.

The mounting height of the entrance sash frame on the balcony or the like can be made the same as the floor height on the indoor side without impairing the drainage performance and the waterproof performance, so that there is no step. There are also advantages such as prevention of injuries due to stumbling of the elderly and the handicapped can enter and exit by wheelchair.

Since the floor surface of a balcony or the like is horizontal, it does not naturally start moving even in a wheelchair, for example.

The fireproof finish of the rising waterproof surface can be easily made by general siding or draining material without any special treatment, and as a result, bottom cost can be reduced.

Further, since it is not necessary to form a water gradient base on the floor, the cost can be reduced and the construction period can be shortened.

If the waterproof layer is not exposed to direct sunlight, and if a heat insulating material is laid, the degree of external temperature change is extremely reduced, and as a result, the durability of the organic waterproof layer is remarkably increased. Will be improved.

Since the waterproof layer generally has little moisture permeability, if it is located on the indoor side (high temperature side) below the heat insulating material, it blocks high-temperature air and water vapor rising from below, and Therefore, it is effective in preventing dew condensation in winter.

[Brief description of the drawings]

FIG. 1 is a sectional view of a second-floor balcony.

FIG. 2 is a sectional view showing a drainage drain portion.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Waterproof layer 2 Dry type noncombustible material (with back feet) 3 Lower frame of entrance sash 4 Insulation material with drainage groove 5 Flooring material 6 Plywood 7 Structural floor plywood 8 Floor joist 9 Siding 10 Sheet metal drainage 11 Vertical drainage drain

Claims (4)

[Claims] 1. A waterproof layer is formed on a horizontal floor, a heat insulating material having a certain thickness is laid thereon, and a dry non-combustible material having a certain thickness is further laid on the uppermost layer. The thickness of the heat insulating material and the dry incombustible material, and the mounting of the sash frame so that the height of the lower frame is the same, and the height of the lower frame and the height of the indoor floor are the same. The waterproof structure of the balcony, characterized in that the height is adjusted appropriately. 2. The waterproof structure for a balcony according to claim 1, wherein the back surface of the heat insulating material has an uneven shape, and rainwater or the like easily flows through the back side of the heat insulating material and is drained. 3. A convex non-combustible material having a convex back foot on the back side thereof
The waterproof structure for a balcony according to claim 1, wherein rainwater or the like easily flows behind the dry noncombustible material and is drained. 4. The waterproof structure of a balcony according to claim 1, wherein a heat insulating material is omitted in the case of the dry incombustible material according to claim 3.