JPH0222826B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the repair of partial water leakage of flat roofs, and involves covering the cracks with an asphalt sheet between the cracks and the upper layer of paving asphalt to prevent cracks caused by vibrations, cold, heat, etc. The inventor of the present invention has repeatedly thought through trial and error over many years, and has carried out testing and research with the aim of improving the leakage repair effect by responding to microtremors and preventing cracks from reaching the upper waterproof layer and fixed layer. It was invented as a result of.

The details will be explained below with reference to the drawings. The repaired area 1 is cleaned, a primer (oil-based fluid asphalt) 2 is applied, and an asphalt sheet with a thickness of 1.5 to 2 mm is applied to the joints and cracks 3 of the repaired area 1. Asphalt 5 for paving is crimped onto the asphalt sheet 4 to a thickness of 25 to 30 mm, and the asphalt with a thickness of 0.5 to 1 mm is coated with water, bone powder, grass, and acrylic resin on the top surface of the asphalt for paving 5. A fixing layer 7 made of asphalt mixed with water, bone powder, acrylic resin, small sand, grass, etc. is applied on the top surface of the waterproof layer 6. After the fixing layer 7 dries, a This relates to a structure formed by applying aesthetic paint 8.

As mentioned above, the present invention applies to joints and cracks 3.
Since the asphalt sheet 4 with a thickness of 1.5 to 2 mm is applied, the asphalt sheet 4 covers the upper surface of the joints and cracks 3, protects and reinforces the joints and cracks 3, and also covers the base primer 2 and the paving of the land. It is easily compatible with the asphalt 5, and is integrated with them, so that cracks do not extend to the upper waterproof layer 6 and fixing layer 7 in response to slight vibrations of cracks caused by vibrations, cold and heat, etc. In other words, the slight movement of the joints and cracks 3 is caused by the asphalt sheet 4 and the paving asphalt 5.
Since cracks do not spread to the waterproof layer 6 or the fixed layer 7 due to absorption and cancellation, water does not leak from the waterproof layer 6 or the fixed layer 7, and the waterproof layer 6 and the fixed layer 7 are not covered by the paving asphalt 5. The upper surface has a waterproof and fixing effect, making it easy to repair. Moreover, since the construction period is short, it is a useful invention that reduces construction costs.

[Brief explanation of drawings]

The drawing shows a cross-sectional view of the repair part of the present invention. 1: Repair part, 2: Primer, 3: Cracks,
4: Sheet, 5: Paving asphalt, 6: Waterproof layer, 7: Fixed layer, 8: Beautiful paint, A: Flat roof.

Claims (1)

[Claims] 1 Clean the repaired area, apply a primer (oil-based fluid asphalt), cover the joints and cracks of the repaired area with an asphalt sheet with a thickness of 1.5 to 2 mm, and apply paving asphalt on top of the asphalt sheet. Water is applied to the asphalt with a thickness of 0.5 to 1 mm on the top surface of the asphalt for paving, which is crimped to a thickness of 25 to 30 mm.
Apply a waterproof layer containing bone powder, grass, acrylic resin, etc., and apply a fixing layer made of asphalt mixed with water, bone powder, acrylic resin, small sand, grass, etc. on the top of the waterproof layer, and after the fixing layer dries. A method for repairing water leakage on flat roofs by applying decorative paint to the top surface.