CN104746806A - Double-layer water-proof roof surface system - Google Patents

Abstract

The invention belongs to a double-layer waterproof roof system for building outdoor roofing engineering. The technical proposal is: two layers of keels are laid on the main steel structure of the roof, the bottom keels are steel keels for coil roofing, and the upper keels are metal standing seam roofs. Steel keels, the coiled roof steel keel and the metal standing seam roof steel keel are provided with supporting columns; the coiled material roof steel keel is fixedly laid with steel bottom plates, vapor barrier layers, insulation layers and coiled material from bottom to top. Waterproof layer; the metal standing seam roof steel keel is fixed with the standing seam plate connector and the metal standing seam plate; the bottom of the supporting column is fixed on the main steel structure of the roof, and it penetrates through the waterproof layer of the membrane The surface is turned up and covered with coiled material. It provides a safe, reliable, waterproof and superior metal standing seam system without greatly increasing the project cost. At the same time, it can ensure the appearance of the building, especially suitable for three-dimensional complex curved roofs.

Description

A double-layer waterproof roof system

technical field

The invention belongs to building outdoor roofing engineering, and in particular relates to a construction method of a metal standing seam roofing system, which can be applied to roofing engineering using large complex curved roofing.

Background technique

In the field of architectural roofing engineering, the metal standing seam system is a widely used roofing system, and has formed a variety of installation and construction methods so far. However, the usual metal standing seam system can only provide one layer of waterproofing, which brings hidden dangers of water leakage for the future operation and maintenance of large public buildings. At the same time, the shape of the roof of large public buildings has become more and more complex recently, and many three-dimensional and complex curved roof shapes have appeared, which put forward high requirements for the appearance of the roof. The usual metal standing seam roof can only provide a waterproof fortification, leaving hidden dangers of water leakage. Similarly, laying the coiled material directly under the metal standing seam will be pierced by a large number of connecting components, and waterproof remedial measures cannot be provided, leaving serious hidden dangers. At present, a large number of public buildings with complex roof forms usually use complex roof systems with high cost, such as the roof system combined with metal decorative panels and standing seam panels, which only provide a more beautiful appearance, but are still a waterproof fortification, and The cost is expensive, which increases the national and local fiscal expenditures.

Contents of the invention

The technical problem to be solved by the present invention is to provide a double-layer waterproof roof system with excellent waterproof performance, which can provide a safe, reliable and waterproof metal standing seam system without greatly increasing the project cost, and at the same time ensure the architectural appearance effect , especially suitable for large-scale three-dimensional complex curved roofs.

In order to solve the above technical problems, the technical solution of the present invention is: a double-layer waterproof roof system, which is characterized in that two layers of keels are laid on the main steel structure of the roof, the bottom keel is a coiled roof steel keel, and the upper keel is Metal standing seam roof steel keel, the coiled material roof steel keel and the metal standing seam roof steel keel are provided with supporting columns to isolate the two layers of keel from top to bottom; the coiled material roof steel keel On the upper part, the steel bottom plate, vapor barrier layer, thermal insulation layer and membrane waterproof layer are respectively fixed; the metal standing seam panel is fixed on the metal standing seam roof steel keel, and the metal standing seam panel passes through the vertical seam panel The connecting piece is laid on the metal standing seam roof steel keel; the bottom of the supporting column is fixed on the steel structure of the roof main body, and it penetrates the surface of the membrane waterproof layer to cover the membrane.

As an optimization of the above-mentioned technical solution, it is suggested that the upper and lower isolation heights of metal standing seam roof steel keels and coil roof steel keels be 150 to 500 mm.

The essence of the invention is a double-layer roofing system which combines rigid waterproofing of metal standing seams and flexible waterproofing of coiled materials. The rigid waterproof layer and the flexible waterproof layer are independent of each other and are installed on their respective keel systems, and a certain distance is left between the two waterproof layers to form an independent and complete double-layer waterproof system. The metal standing seam roof undertakes the drainage in most cases; in rare cases of leakage, the membrane roof quickly drains away the rainwater.

Drainage directions and slope changes of complex curved roofs are very complicated. The metal standing seam panel drains water in one direction, and the coiled material layer drains in multiple directions; the slope of the coiled material layer is greater than that of the metal standing seam roof. This roofing system makes use of the characteristics of the two systems, and the advantage of the slope of the coil roof makes up for the disadvantage of the single slope direction of the metal roof panel.

In addition, in the present invention, the coiled material layer is arranged at the lower part of the metal standing seam layer, and is not directly irradiated by sunlight, thereby prolonging the service life of the coiled material.

The benefit of the invention is that it solves the limitation of the fortification level of the metal standing seam roof system used in the three-dimensional complex curved roof. The metal standing seam layer is completely separated from the membrane waterproof layer, and the membrane waterproof layer itself is completely closed without waterproof weakness. Under the premise of not greatly increasing the construction cost, by adopting the improvement of the traditional roof system, the waterproof performance is improved while ensuring the realization of the architectural effect.

Description of drawings

Below in conjunction with accompanying drawing and example and application construction method the present invention will be further described.

Fig. 1 is a cutaway view of the completed embodiment of the present invention.

Figure 2 is a cross-sectional view of the completed implementation of the present invention.

The component names corresponding to the numbers in the figure are:

1. Main steel structure

2. Coil roofing steel keel

3. Steel floor

4. Vapor barrier

5. Insulation layer

6. Membrane waterproof layer

7. Metal standing seam roof steel keel

8. Standing seam connector

9. Metal standing seam

10. Support uprights.

Detailed ways

As shown in Fig. 1 and Fig. 2: firstly, the coil roof steel keel 2 and the support column 10 of the coil roof are installed on the main steel structure 1 of the roof. Install and fix the steel base plate 3 on the steel keel 2 of the coiled material roof, and then lay a vapor barrier layer 4, an insulation layer 5, and a coiled material waterproof layer 6 on the steel base plate 3 to complete the construction of the coiled material roof. Then install the metal standing seam roof steel keel 7 on the supporting column 10, fix the standing seam plate connector 8 on the metal standing seam roof steel keel 7, and finally lay the metal standing seam plate 9 to complete the entire double-layer waterproof roof System construction.

The above detailed introduction to the solutions provided by the examples of the present invention, for those of ordinary skill in the art, based on the idea of the embodiments of the present invention, there will be changes in the specific implementation and application scope. To sum up, the contents of this specification should not be construed as limiting the present invention, and any changes made according to the design concept of the present invention are within the scope of protection of the present invention.

Claims (2)

1. A double-layer waterproof roof system, characterized in that two layers of keels are laid on the main steel structure of the roof (1), the bottom keel is a coiled roof steel keel (2), and the upper keel is a metal standing seam roof Steel keels (7), the coil roof steel keels (2) and the metal standing seam roof steel keels (7) are provided with supporting columns (10) to isolate the two layers of keels from top to bottom; The steel keel (2) of the material roof is fixedly laid with the steel base plate (3), vapor barrier layer (4), thermal insulation layer (5) and coiled material waterproof layer (6) respectively from bottom to top; the metal standing seam roof steel The standing seam connector (8) is fixed on the keel (7), and the metal standing seam (9) is laid on the metal standing seam roof steel keel (7) through the standing seam connector (8) Above; the bottom of the support column (10) is fixed on the main steel structure of the roof (1), and it penetrates the surface of the membrane waterproof layer (6) to be turned up and covered by the membrane. 2. A double-layer waterproof roof system according to claim 1, characterized in that: the upper and lower isolation heights of the metal standing seam roofing steel keel (7) and the coiled roofing steel keel (2) are 150 to 500mm.