JPH0310780B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to an improvement in a waterproofing method for rooftops, etc. of buildings.

[Conventional technology and issues]

As a waterproofing method for building rooftops, etc., when a base mortar layer is formed on concrete slabs and a waterproof sheet is pasted on top of it using an adhesive, if the floor surface is still wet after rain, the waterproof sheet may be glued. Therefore, waterproofing cannot be carried out. In addition, even if construction is carried out when the floor surface appears dry after rain, the concrete slab layer may still contain moisture, and after construction, this moisture evaporates and condenses on the underside of the waterproof sheet. Moisture collects and causes the tarpaulin to swell, and when it gets hot, it evaporates, causing it to swell further or break.

Therefore, sheet waterproofing using a tarpaulin sheet requires waiting a certain number of days after the rain has stopped, and in the rainy season, it is often necessary to extend the deadline for completing waterproofing.

Furthermore, in snowy areas, sheet waterproofing is often impossible in winter due to the influence of snow.

Furthermore, when replacing the rooftop waterproofing of an existing building, the existing waterproofing layer is completely removed, the base layer is made smooth and even, and a new base layer is built on top of that to perform waterproofing, so the construction process is difficult. This is a very time consuming and expensive construction work.

Therefore, in order to solve all the problems of the conventional sheet waterproofing construction described above, the present invention provides a waterproofing construction method that allows waterproofing to be performed immediately after rain or after snow has stopped, and also allows for easy replacement of waterproofing. The task is to do so.

[Means to solve the problem]

In order to solve the above-mentioned problems, this invention arranges cross-section horizontally H-shaped beams with a soluble synthetic resin layer formed on the upper surface on a slab concrete, and fits the side edges of rectangular plate-shaped blocks into the grooves on both sides. After that, the above-mentioned shingles are fixed with anchor nails to form a base layer, a waterproof sheet is laid on the base layer, and the parts of the waterproof sheet that correspond to the shingles are welded by heating and pressurizing. Water flow occurred at the bottom of the substratum〓
The step is to communicate the water to the drain or degas cylinder.

[Embodiments] Hereinafter, embodiments of the present invention will be described based on the accompanying drawings. Figure 1 shows the completed state of waterproofing construction, with 1 showing a slab concrete and 2 a base layer formed thereon.

The base layer 2 is composed of rectangular plate-shaped blocks 3 and a cross section 4 having a horizontal H-shape that connects each block 3. The side edges of each block 3 are inserted into grooves on both sides of the beam 4, and the beam 4 is fixed to the concrete slab 1 with anchor nails 5.

The cross member 4 is formed by forming a layer 7 of a thermofusible synthetic resin on the surface of an H-shaped steel member 6, and this layer 7 also serves to prevent the steel member 6 from corrosion.

A waterproof sheet 8 is laid on the base layer 2, and the waterproof sheet 8 is fixed to the timber 4 by heating and pressurizing the portion of the waterproof sheet 8 that corresponds to the timber 4. . The ends of the waterproof sheet 8 are fixed to the shingles 4 and simultaneously connected to the ends of the adjacent waterproof sheets 8.

When the construction is carried out as described above, a water passage hole 9 corresponding to the thickness of the lower flange of the cross member 4 is formed on the lower surface of the block 3. Further, as shown in FIG. 2, a transverse groove 10 is formed on the lower surface of the crosspiece 4.

As shown in FIG. 2, the water passage 9 is communicated with a drain 11 or a degas cylinder (not shown). When communicating with the drain 11, the inner plate 13 is placed on the drain main body 12 with a gap maintained by the protrusion 14, and the water flow gap 9 is communicated between the two.
The end of the waterproof sheet 8 is clamped between the inner plate 13 and the upper plate 15 and fixed with bolts 16.

The method of constructing the waterproof structure described above is to arrange the timbers 4 on a concrete slab 1, fit the rectangular plate-shaped blocks 3 into the grooves on both sides of the timbers 4, and then attach the timbers 4 to the slab using anchor nails 5. It is fixed to concrete 1 to form a base layer 2, and a waterproof sheet 8 is laid on the base layer 2, and the part of the waterproof sheet 8 corresponding to the siding material 4 is welded by heating and pressurizing to form the lower part of the base layer 2. A process is executed to connect the water flow gap 9 generated in the process to a drain 11 or other discharge equipment.

〔Effect of the invention〕

(1) When construction is carried out immediately after rain or after removing accumulated snow, the base layer is dry and unaffected by rain or snow, and the waterproof sheet is heated and pressurized to weld to the timber. The waterproof sheet can be securely fixed and has the effect of not peeling off.

(2) There is a water passage on the lower surface of the base layer, and this water passage is connected to the drain and decapitalization equipment, so rainwater on the slab concrete or moisture evaporated from the slab concrete is The water is discharged outside after passing through the water passage. Therefore, construction can be carried out immediately after the rain ends.

(3) When changing waterproofing work performed by the method of this invention, the waterproof sheet can be easily removed together with the base layer, and the above-mentioned method can then be carried out, eliminating the need for the complicated repair process of the conventional method. is not necessary. Therefore, it has the effect of being able to be constructed in a short period of time and at low cost.

(4) By forming the blocks constituting the base layer with a heat insulating material, it is possible to have a waterproof structure as well as a heat insulating structure.

(5) Even if the construction work is not completed in one day, but extends over the next day or the day after, it is convenient to create a waterproof layer by creating a base layer on only the area that can be constructed on the day, so that even if it rains the next day, you can wait until the rain stops and continue. There is.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing a part after construction, and FIG. 2 is a sectional view showing another part after construction. 1...Slab concrete, 2...Base layer, 3
...Block, 4... Lumber, 5... Anchor nail,
6...H-shaped steel material, 7...Synthetic resin layer, 8...Waterproof sheet, 9...Water flow interval, 10...Groove, 11...
drain.

Claims (1)

[Claims] 1. Arranging the timbers with a horizontally H-shaped cross section and having a soluble synthetic resin layer formed on the upper surface on the concrete slab,
After fitting the side edges of the rectangular plate-shaped blocks into the grooves on both sides, the above-mentioned timbers are fixed with anchor nails to form a base layer, a waterproof sheet is laid on the base layer, and the waterproof sheet is A construction waterproofing method characterized by welding the parts corresponding to the timber by heating and pressurizing, and connecting the water flow gap created at the bottom of the base layer to a drain or de-venting cylinder.