A greening construction method for high-covered roof

Abstract

The present invention belongs to the technical field of roof greening, and specifically relates to a high-coverage roof greening construction method, comprising cleaning the roof base layer, constructing a slope leveling layer, constructing a waterproof layer, constructing a drainage layer, constructing a filtration layer, backfilling planting soil, planting trees, leveling the terrain, and planting ground lawns. After cleaning the roof base layer, leveling is performed. The slope leveling layer has slopes in both the length and width directions. During the slope leveling layer construction, design software is used to grid the roof base layer and position columns are inserted on the roof base layer. Drainage boards and drainage grooves are laid on the drainage layer to collect excess water. Compared with the prior art, the present invention has the following beneficial effects: (1) The special design of the slope leveling layer structure can ensure that excess water flows smoothly to the drainage layer and is discharged through the drainage grooves; (2) Before the slope leveling layer is constructed, a graduation rod is installed on the roof base layer, and the height of each position of the slope leveling layer is located in conjunction with software modeling to ensure accurate slope leveling construction.

Description

Technical Field

[0001] The invention belongs to the technical field of roof greening, and in particular relates to a high-covering roof greening construction method. Background Art

[0002] With the pace of urban construction, urban landscaping has developed rapidly, and the quality requirements of landscaping have been continuously improved. In order to maximize the role of landscaping, deeply explore the value of landscaping, create landscape qualities that vary from place to place, and green the roofs of urban buildings under the premise of meeting the normal use of urban buildings, the building design stage is combined with the requirements of landscaping to fully consider the building structure load, drainage and root prevention, etc. During construction, the construction is strictly carried out according to the drawings to ensure the safe use of the building structure while creating a staggered landscape effect. In the existing technology, when the greening construction of the roof is carried out, the slope of the slope layer is mostly in a single direction. When encountering heavy rain or continuous rain, the single inclined slope layer cannot guide the water flow direction to the drainage outlet well, resulting in excessive moisture in the greening soil, affecting the growth of greening plants, causing water accumulation on the roof and even leakage; and, during the construction of the traditional slope layer, most of the gray cakes are used to control the elevation of the slope layer, which has the problem of inaccurate elevation, affecting the construction quality.

[0003] Therefore, in response to the above problems, it is necessary to design a new construction method to adapt to actual needs. Summary of the invention

[0004] In view of the above problems, the present invention provides a high-covering roof greening construction method.

[0005] In order to achieve the above object, the technical scheme of the present invention is: a high-covering roof greening construction method, comprising cleaning the roof base - slope layer construction - waterproof layer construction - drainage layer construction - filtration layer construction - backfilling planting soil - tree planting - terrain preparation - ground cover lawn planting;

[0006] The slope layer has slopes in both the length and width directions; before the construction of the slope layer, the roof base to be constructed is measured to determine the slope and top surface shape of the slope layer, and the slope layer model is designed on the design software while the surface of the roof base is gridded. After the roof base is divided, the height of the slope layer corresponding to the grid intersection is calculated and determined. During actual construction, a scale rod corresponding to the height of the slope layer at this location is installed at the corresponding grid intersection. After the scale rod is installed, concrete is poured. According to the elevation of the scale rod, concrete of different thicknesses is poured at different places of the roof base to finally achieve the pre-designed slope of the slope layer.

[0007] Preferably, when cleaning the roof base, cement mortar with a cement to sand weight ratio of 1:2.5 is used for leveling.

[0008] Preferably, the waterproof layer is constructed using root-penetration-resistant SBS polymer modified asphalt waterproof membrane, which is laid using a hot-melt method. After the waterproof layer is constructed, fine stone concrete is used as a waterproof protective layer.

[0009] Preferably, the drainage layer is laid on the waterproof protective layer, and the construction of the drainage layer includes laying concave-convex plastic drainage boards and opening drainage grooves. The drainage boards are overlapped in the direction of the drainage slope with one side of the cup-shaped groove facing upwards. A cover plate is installed on the top of the drainage groove. The drainage groove is located at the lowest point of the waterproof layer. The drainage groove is connected to the drainage port of the drainage board, and the water outlet of the drainage groove is connected to the inlet of the external water collection well.

[0010] Preferably, the filter layer is formed by overlapping multiple pieces of non-woven fabrics, which are overlapped on the drainage layer, and the minimum overlap width of the non-woven fabric is 100 mm. After the non-woven fabric is laid, the pebble filter layer, the gravel filter layer and the coarse sand filter layer are laid in sequence.

[0011] Preferably, the backfill planting soil is formed by mixing and kneading plain soil and peat ash, and the thickness of the backfill planting soil is at least 1.5 m.

[0012] Preferably, the tree planting includes tree planting and shrub planting. Before the tree planting, tree holes are dug first, and the trees are planted in the corresponding tree holes using a crane and manual labor, and the trees are supported at four corners; the shrubs are placed manually in the holes dug in advance and the soil is filled and compacted.

[0013] Preferably, the spacing between plants and the planting position are determined before planting the ground cover lawn, and the lawn is laid using rectangular grass blocks, which are then rolled with a roller to make the grass blocks in close contact with the soil.

[0014] Preferably, a drain pipe is installed in the drain groove.

[0015] Compared with the prior art, the advantages and positive effects of the present invention are:

[0016] (1) The slope layer has a slope in both the length and width directions, which can ensure that excess water flows smoothly to the drainage layer and is discharged through the drainage trough;

[0017] (2) Before the construction of the slope layer, a scale rod is inserted on the roof base, and the height of each position of the slope layer is located in conjunction with software modeling to ensure accurate construction of the slope layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the embodiment of the invention, the following is a brief introduction to the drawings required for describing the embodiment:

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 A top view of a scale rod installed on a roof base layer of the present invention;

[0021] Figure 3 It is a left view of the installation of a scale rod on the roof base of the present invention;

[0022] Figure 4 It is a structural schematic diagram of the slope finding layer in the present invention;

[0023] Figure 5 A schematic diagram of the structure of the water storage and drainage layer of the present invention without a cover plate;

[0024] Figure 6 A schematic structural diagram of a drainage layer with a cover plate according to the present invention.

[0025] Figure 7 This is a schematic diagram of the structure of the slope finding layer in Example 2 of the present invention.

[0026] Description of reference numerals:

[0027] 1- roof base, 101- graduation rod, 2- slope layer, 3- waterproof layer, 4- filtration layer, 5- planting soil, 6- drainage ditch, 7- drainage layer, 71- drainage board, 72- cover plate. DETAILED DESCRIPTION

[0028] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments.

[0029] Example 1

[0030] like Figure 1-6 As shown, a high-cover roof greening construction method includes cleaning the roof base 1 - constructing a slope leveling layer 2 - constructing a waterproof layer 3 - constructing a drainage layer 7 - constructing a filtration layer 4 - backfilling planting soil 5 - planting trees - leveling the terrain - planting ground cover lawns.

[0031] like Figure 2-4As shown, the slope layer 2 has slopes in both the length and width directions; before the construction of the slope layer 2, the roof base 1 to be constructed is measured to determine the slope and top surface shape of the slope layer 2, and a model of the slope layer 2 is designed on the design software, and the surface of the roof base 1 is gridded on the design software. After the roof base 1 is divided, the height of the slope layer 2 corresponding to the grid intersection is calculated and determined. During actual construction, a scale rod 101 corresponding to the height of the slope layer 2 at this location is installed at the corresponding grid intersection. After the installation of the scale rod 101 is completed, concrete pouring is carried out. According to the elevation of the scale rod 101, concrete of different thicknesses is poured at different places of the roof base 1, and finally the pre-designed slope of the slope layer 2 is achieved.

[0032] like Figure 2 As shown, the scale rod 101 is similar to a table flagpole and has a base; during the installation of the scale rod 101, the base is glued to the upper surface of the roof base 1.

[0033] like Figure 1 As shown, when cleaning the roof base 1, cement mortar with a cement to sand weight ratio of 1:2.5 is used for leveling, and arcs are made at the junction of the roof base 1 and the protruding roof structure and at the corners of the roof base 1.

[0034] like Figure 1 As shown, the waterproof layer 3 is constructed using 4 mm thick root-penetration-resistant SBS polymer modified asphalt waterproof membrane, and the waterproof membrane is laid using the hot melt method. After the waterproof layer 3 is constructed, a waterproof protective layer is laid using fine stone concrete.

[0035] like Figure 5 and 6 As shown, the drainage layer 7 is laid on the waterproof protective layer. The construction of the drainage layer 7 includes laying a concave-convex plastic drainage board 71 and opening a drainage ditch 6. The drainage board 71 is laid in a uniform longitudinal or transverse direction of the drainage slope. The drainage boards 71 ​​are overlapped in the direction of the drainage slope and one side of the cup-shaped groove of the drainage board faces upward. A cover plate is installed on the top of the drainage ditch 6. The drainage ditch 6 is located at the lowest point of the waterproof layer 3. The drainage ditch 6 is connected to the drainage port of the drainage board, and the water outlet of the drainage ditch 6 is connected to the inlet of the external water collection well.

[0036] like Figure 1 As shown, the filter layer 4 is formed by overlapping multiple pieces of non-woven fabrics, which are overlapped on the drainage layer 7. The minimum overlap width of the non-woven fabric is 100 mm. After the non-woven fabric is laid, the pebble filter layer, the gravel filter layer and the coarse sand filter layer are laid in sequence.

[0037] like Figure 1 As shown, the backfill planting soil 5 is made by mixing and kneading plain soil and peat ash, and the minimum backfill planting soil 5 is 1.5m.

[0038] like Figure 1 As shown, tree planting includes tree planting and shrub planting. Before planting trees, tree holes are dug first. The trees are planted in the corresponding tree holes using a crane and manual labor, and the trees are supported at four corners. Shrubs are placed manually in the holes dug in advance and the soil is filled and compacted.

[0039] like Figure 1 As shown, before planting the ground cover lawn, the plant spacing and planting position are determined first, and then the ground cover is planted in the corresponding position; 300mm wide and 900mm long grass blocks are used to lay the lawn, and then a roller is used to roll the grass blocks to make close contact with the soil.

[0040] like Figure 1 As shown, a drain pipe is installed in the drain groove 6.

[0041] Example 2

[0042] The difference between this embodiment and embodiment 1 is that the structure of the slope layer 2 is as follows: Figure 7 As shown, it is a structure with high middle and low sides, the drainage ditch 6 or drainage pipe is set at the lowest point of the slope layer, and the other steps are the same as embodiment 1.

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in other forms. Any technician familiar with the profession may use the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modification or equivalent change made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A method for greening a high-covered roof, comprising cleaning the roof base (1) - constructing a slope leveling layer (2) - constructing a waterproof layer (3) - constructing a drainage layer (7) - constructing a filtration layer (4) - backfilling with planting soil (5) - planting trees - leveling the terrain - planting ground cover lawns, characterized in that: The slope leveling layer (2) has a slope in both the length direction and the width direction. Before the slope leveling layer (2) is constructed, the roof base (1) to be constructed is measured to determine the slope and top surface shape of the slope leveling layer (2), and a model of the slope leveling layer (2) is designed on a design software. At the same time, the surface of the roof base (1) is gridded. After the roof base (1) is divided, the height of the slope leveling layer (2) corresponding to the grid intersection is calculated and determined. During actual construction, a scale bar (101) corresponding to the height of the slope leveling layer (2) is installed at the corresponding grid intersection. After the scale bar (101) is installed, concrete pouring is performed. According to the elevation of the scale bar (101), concrete of different thicknesses is poured at different locations of the roof base (1), and finally the slope of the slope leveling layer (2) designed in advance is achieved.

2. A high-cover roof greening construction method according to claim 1, characterized in that: When cleaning the roof base (1), cement mortar with a cement to sand weight ratio of 1:2.5 is used for leveling.

3. A high-cover roof greening construction method according to claim 1, characterized in that: The waterproof layer (3) is constructed by using root-penetration-resistant SBS polymer modified asphalt waterproofing coiled material, which is paved by hot-melt method. After the waterproof layer (3) is constructed, fine stone concrete is used as a waterproof protective layer.

4. A high-cover roof greening construction method according to claim 3, characterized in that: The drainage layer (7) is laid on the waterproof protective layer. The construction of the drainage layer (7) includes laying a concave-convex plastic drainage board (71) and opening a drainage groove (6). When the drainage board (71) is overlapped, it is overlapped along the drainage slope direction and one side of the cup-shaped groove faces upwards. A cover plate (72) is installed on the top of the drainage groove (6). The drainage groove (6) is located at the lowest point of the waterproof layer (3). The drainage groove (6) is connected to the drainage outlet of the drainage board (71), and the water outlet of the drainage groove (6) is connected to the inlet of an external water collection well.

5. A high-cover roof greening construction method according to claim 1, characterized in that: The filter layer (4) is formed by overlapping a plurality of non-woven fabrics, and the non-woven fabrics are overlapped on the drainage layer (7). The minimum overlap width of the non-woven fabrics is 100 mm. After the non-woven fabrics are laid, a pebble filter layer, a gravel filter layer and a coarse sand filter layer are laid in sequence.

6. A high-cover roof greening construction method according to claim 1, characterized in that: The backfill planting soil (5) is formed by mixing and kneading plain soil and peat ash, and the thickness of the backfill planting soil (5) is at least 1.5 m.

7. A high-cover roof greening construction method according to claim 1, characterized in that: The tree planting includes tree planting and shrub planting. Before the tree planting, a tree hole is dug first, and the tree is planted in the corresponding tree hole by a crane and manual labor, and the tree is supported by four corners; the shrub is placed manually in the hole dug in advance and the soil is filled and compacted.

8. A high-cover roof greening construction method according to claim 1, characterized in that: Before planting the ground cover lawn, the plant spacing and planting position are determined first, and the lawn is laid using rectangular grass blocks, which are then rolled with a roller to make the grass blocks closely contact with the soil.

9. A high-cover roof greening construction method according to claim 4, characterized in that: A drainage pipe is installed in the drainage groove (6).

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