CN101250929A

CN101250929A - Planting roofing as well as construction method thereof

Info

Publication number: CN101250929A
Application number: CNA200810049509XA
Authority: CN
Inventors: 刘轶
Original assignee: XINPU CONSTRUCTION GROUP CO Ltd
Current assignee: XINPU CONSTRUCTION GROUP CO Ltd
Priority date: 2008-04-08
Filing date: 2008-04-08
Publication date: 2008-08-27
Anticipated expiration: 2028-04-08
Also published as: CN100564759C

Abstract

The invention relates to a planted roof and a construction method thereof. The invention can effectively solve the roof problems of water resistance, heat insulation and crop and flower planting. The roof comprises a roof layer and a waterproofing membrane, wherein the roof layer is provided with a sloping layer which is provided with a leveling layer; the leveling layer is provided with the waterproofing membrane; a root resistant waterproof layer is arranged between the waterproofing membrane and a drainage layer; an isolation filtering layer is arranged on the drainage layer and is provided with a planting medium layer; plants are planted on the planting medium layer to form a plant layer; the circumference of the roof layer has a dead wall which is connected integrally and is higher than the planting medium layer. The construction method comprises the following steps: cast-in-situ reinforced concrete is made into the roof layer and then the leveling layer is prepared; coiled material is made into the waterproofing membrane and the root resistant waterproof layer arranged thereon after bail moist conservation; when leakage stops, the drainage layer, the isolation filtering layer and the planting medium layer are laid down immediately. The planted roof has high quality and long service life and can save land, thereby having enormous social benefits and economic benefits.

Description

Planted roof and job practices thereof

One, technical field

The present invention relates to building field, particularly planted roof and job practices thereof.

Two, background technology

Development along with the city, urban ground space growing tension, land resources is " an inch of land is an inch of gold ", people also highlight day by day to the needs in plantation soil, the building soil becomes increasingly conspicuous with the contradiction in plantation soil, also be that national governments are concerned about, in order to solve plantation soil, city, many countries want the soil in the air, want the soil to roofing, as utilizing deck to create the rural area, roof or the garden of plantation usefulness in some countries (Japan) or some cities of China, this planted roof is a support with the top of building plane, need waterproof, the greenery patches, heat insulation triplicity forms a rounded system together, requirement is being satisfied on the non-leakage basis, to guarantee that also plant has good growing environment, but at present for various reasons, the existing both at home and abroad planted roof of building does not satisfy actual needs, the infiltration of leaking, deck is short application life, and plant growth is bad, therefore, so far the planted roof on still the end is of practical significance, be difficult to effectively apply, " heat island effect " in city and end are alleviated, how to be built with the planted roof of actual application value? this is concerned about by people.

Three, summary of the invention

At above-mentioned situation, the present invention's purpose just provides a kind of new planted roof and job practices thereof, can effectively solve both waterproof, heat insulationly can plant plant again, the roofing problem of flowers, the technical scheme of its solution is, this roofing includes roofing layer and coil waterproof layer thereof, sloping layer is arranged above the roofing layer, leveling layer is arranged above the sloping layer, coil waterproof layer is arranged on the leveling layer, be equipped with anti-root system puncture waterproofing course between coil waterproof layer and drainage blanket, the isolation filtration beds is arranged above the drainage blanket, above isolating filtration beds the planting medium layer is arranged, the plantation plant is arranged above the planting medium layer, constitute layer of plants, being connected as a single entity arranged on the roofing layer periphery and be higher than kind of the barricade of plant dielectric layer; Its job practices is that roofing layer is made by cast-in-situ steel reinforced concrete; surface irregularity is less than 10mm; and it is high in the middle of being; the sloping shape that both sides are low; its gradient is 1%-3% (being the sloping layer that both sides will be lower than the 1%-3% of intermediate altitude); make leveling layer afterwards again; mix with 1: 2.5 w/v of cement mortar; lay thick plain of 20-30mm; draw water and make coil waterproof layer with coiled material more in the above behind the moisture-keeping maintaining; lay anti-root system puncture waterproofing course above the coil waterproof layer, this layer was laid drainage blanket behind the retaining leakproof in 24 hours immediately, remake to isolate filtration beds and planting medium layer; just can be used for planting plant; constitute layer of plants, planted roof novel structure of the present invention; unique; quality is good; life-span is long, is beneficial to improve environment and environmental protection; and construction is simple; fast, save the soil, the society and economy benefit is huge.

Four, description of drawings

Fig. 1 is a sectional front view of the present invention.

Fig. 2 is a process chart of the present invention.

Five, the specific embodiment

Below in conjunction with accompanying drawing the present invention is elaborated.

Provide by Fig. 1, roofing of the present invention includes roofing layer 1 and coil waterproof layer 4 thereof, sloping layer 2 is arranged above the roofing layer 1, leveling layer 3 is arranged above the sloping layer 2, coil waterproof layer 4 is arranged above the leveling layer 3,6 of coil waterproof layer 4 and drainage blankets are equipped with anti-root system puncture waterproofing course 5, the filtration beds 7 of isolation is arranged above the drainage blanket, above the isolation filtration beds 7 planting medium layer 8 is arranged, plant plant on the planting medium layer, constitute layer of plants 9, being connected as a single entity arranged on the roofing layer periphery and be higher than the barricade 10 of planting medium layer;

Its job practices is specifically realized by following steps:

1, roof construction layer cleaning:

Roofing layer adopts cast-in-situ steel reinforced concrete to make roof structure, and roofing is smooth, and unevenness is less than 10mm, otherwise will use 1: 2 cement mortar screeding of weight ratio, and surperficial sandstone fragment, foreign material will clean up;

2, sloping layer:

For the ease of getting rid of the ponding of planted roof, guarantee the normal growth of plant, roofing should adopt and look for sloping structure, its gradient is 1%～3%;

3, leveling layer:

For the ease of laying flexible waterproof layer, answer making cement mortar levelling layer on the sloping layer, it is 20～30mm that leveling layer should adopt 1: 2.5 cement mortar laying depth of w/v, leveling layer answers compacting smooth, after treating that leveling layer is received water, should carry out floating press polish of secondary and sufficient moisture-keeping maintaining, dusting, peeling and hollowing phenomenon must not be arranged;

4, coil waterproof layer:

In the planted roof engineering, except that the waterproofing course that adopts anti-root system, still should re-lay in its underpart have together water-fast, corrosion-resistant, anti-go rotten and to basic unit the flexible or adaptable coiled material of craze and transfiguration make flexible waterproof layer, said coiled material adopts polymer modified bituminous waterproof sheet material, commonly used have APP coiled material, SBS coiled material, a PEE coiled material, thickness is not less than 4mm, classification of waterproof should adopt the I level and must not be lower than the II grade standard, when adopting coiled material to make waterproofing course, should satisfy national standard " Technical code for roof engineering " and

The regulation of " roofworks inspection of quality standard ";

5, anti-root system puncture waterproofing course:

Because of the root system of plant has very strong puncture ability, so roof greening must be protected building roof and waterproofing course, for this reason, in planted roof, must or paste and have enough anti-root system puncture materials with function together in the overhead shop of flexible waterproof layer, this material selection high-density polyethylene (HDPE) geomembrane is made anti-root system puncture waterproofing course, after this construction of waterproof layer is finished, should carry out 24h retaining check, after checking true leakproof, should lay drainage blanket as early as possible, isolate filtration beds, the construction of planting medium layer, in carrying out above-mentioned construction, all must not damage waterproofing course, in order to avoid stay hidden leakage defect;

6, drainage blanket:

Drainage material adopts the built on stilts band drain of lightweight thin layer, have permeable hole on the plate and constitute honeycomb, when guaranteeing built on stilts to greatest extent drainage space, realizing efficient draining fast, be provided with superpower anti-trampling intensity, the support monomer that can be connected mutually, its effect is with the water by filtration beds, promptly being pooled to spilled water hole from the space of drainage blanket excludes, can cause the plant bad root phenomenon as impeded drainage, said drainage blanket adopts the GT-DP-M28 type, thickness is the built on stilts band drain of 28mm lightweight thin layer, every m ²Weight is 2.8kg, compares with the haydite drainage blanket, and only own wt just reaches 80～120kg/m ², realized the thin layerization and the lightweight of draining, thereby improved the survival rate about 25% of plant, the about m of cost saving ²/ 400 yuan, save every 1000m of duration ²/ 8 days, 8 days/people can save 240 yuan;

7, isolate filtration beds:

Isolating filtration beds is between drainage blanket and planting medium, should adopt weight to be not less than 250g/m ²The polyester fiber geotextiles is isolated filtration beds together, to play water conservation and water filtering function, its objective is will be in the planting medium layer because of the water that rains or the back of watering is unnecessary discharges after filtering, rot root to prevent plant, plant medium can be remained simultaneously, in order to avoid soil erosion;

8, planting medium layer:

Adopt artificial lightweight compost (GT-I type), the quality of artificial lightweight compost is loose, should not harden, have good draining and permeability, can be used as roof greening planting layer matrix uses, also can be used as soil conditioner (commercially available) and local normal soil and be used (as the ratio proportioning of 2: 1 or 1: 1), improve the preserve moisture and fertility ability of normal soil so on the one hand greatly, keep soil from packing together, strengthen its draining and ventilating performance, all right economical with materials cost, said artificial lightweight compost, by rural area soil 65%, fine sand 10%, burn the mixture of soil 25%, 0.4% the calcium magnesium phosphate material that adds mixture weight is again mixed thoroughly and is formed, (burning soil is that clay forms through high-temperature firing, particle hollow, many and the rounding of surface pore, suction and good water-retaining property, it is not broken to water, help improving ventilated condition (for the soil commonly used of growing flower), rural area soil is promptly planted flowers, crop soil commonly used, as fertile farmland soil), the unit weight of artificial lightweight compost is less than 1/4th (24%) of common soil, wet density is less than 1/2nd (43%) of common soil, water-holding capacity and cation exchange capacity are respectively 57.31% and 7.16cmol/kg, are 3.2 times (18.14%) and 2.1 times (3.34cmol/kg) of normal soil;

9, layer of plants:

Because the roof soil layer is thin, light application time is long, day and night temperature is big, humidity is little, moisture content is little, select some happiness light, the temperature difference is big, cold-resistant, heat-resisting, drought-enduring, anti-lean, the flowers, plants and trees that vitality is vigorous, the preferably plant of shrub, potted landscape, turf and so on, use the more seeds of fibrous root in a word, horizontal well developed root system can adapt to the shallow requirement of soil layer, uses the tall and big arbor that main root is arranged less as far as possible.

On the said planted roof barricade spilled water hole is arranged, spilled water hole must not stop up in the use; Drainage blanket thickness and discharge opening height will meet the drought-enduring and water-fast requirement of the plant of planting; After roof waterproof layer and the fish tail and waterproof layer construction, pay attention to the protection to roof waterproof layer and waterproofing node, forbidding to punching on roof waterproof layer burrows, and avoids heavy impact, must not stack foreign material arbitrarily on roof waterproof layer and set up structure; Mounted various pipeline, should be earlier with the pipe end sealing, in order to avoid foreign material fall into pipeline and stop up water pipe during the subsequent handling construction, the instant mediation in completion back guarantees that pipeline is unimpeded, answers the periodic cleaning foreign material simultaneously, guarantees the unimpeded of roof drainage system; Roofing faces the limit should have guardrail and the perpendicular safety net of hanging to carry out enclosing.

By above-mentioned situation as can be seen, planted roof is a support with the top of building platform, waterproof, greening, heat insulation triplicity forms a rounded system technically, requirement is being satisfied on the non-leakage basis, to guarantee that also plant has good growing environment, its operation is many sloping layer, leveling layer, waterproofing course, anti-root system puncture waterproofing course, drainage blanket, isolate filtration beds, the construction of levels such as planting medium, planted roof helps the improvement of Interior Temperature Environment, " heat island effect " to the city has mitigation, help being absorbed with harmful substances, alleviate atmosphere pollution, increase the oxygen content in the urban atmosphere, help improving the inhabitation ecological environment, the beautifying city view reaches and environmental harmony, coexistence, the purpose of development.

In a word; the present invention has made full use of the roof area that is in " vacant state "; aspect energy-conservation, roofing protection, the harm of mitigation acid rain promotion building energy conservation, water saving, material-saving, the work of saving land had very big meaning; obtaining extraordinary effect aspect insulation, heat insulation, waterproof, the greening; technology is simple, easy operating, construction quality are good, and economic and social benefit is huge.

Claims

1, a kind of planted roof, include roofing layer and coil waterproof layer, it is characterized in that, sloping layer (2) is arranged above the roofing layer (1), leveling layer (3) is arranged above the sloping layer (2), coil waterproof layer (4) is arranged above the leveling layer (3), be equipped with anti-root system puncture waterproofing course (5) between coil waterproof layer (4) and drainage blanket (6), isolation filtration beds (7) is arranged above the drainage blanket, isolate on the filtration beds (7) planting medium layer (8) is arranged, the plantation plant constitutes layer of plants (9) on the planting medium layer, being connected as a single entity is arranged on the roofing layer periphery and be higher than the barricade (10) of planting medium layer.

2, planted roof according to claim 1 is characterized in that, said drainage blanket has permeable hole and constitutes honeycomb, the support monomer that its underpart is provided with anti-trampling, can be connected mutually for the built on stilts band drain of lightweight thin layer on the plate.

3, the job practices of the described planted roof of claim 1 is characterized in that, is realized by following steps:

(1) build roofing layer, roofing layer adopts cast-in-situ steel reinforced concrete to make roof structure, and unevenness is less than 10mm, otherwise will use 1: 2 cement mortar screeding of weight ratio;

(2) lay sloping layer with cement on the roofing layer, outwards be the slope body from the centre, promptly middle high, both sides are low, and its gradient is 1%～3%;

(3) on the sloping layer leveling layer is set, making cement mortar levelling layer on the sloping layer, leveling layer adopt 1: 2.5 cement mortar of w/v to lay, thickness is 20～30mm, and compacting is smooth, treat that leveling layer is received water after, carry out floating press polish of secondary and moisture-keeping maintaining, build coil waterproof layer more in the above;

(4) coil waterproof layer is laid earlier the waterproofing course of anti-root system, re-lay in its underpart have together water-fast, corrosion-resistant, anti-go rotten and to basic unit the flexible or adaptable coiled material of craze and transfiguration make flexible waterproof layer;

(5) build anti-root system puncture waterproofing course above the coil waterproof layer, in the overhead shop of flexible waterproof layer or paste the high-density polyethylene geomembrane that has enough anti-root system puncture function together and make the anti-root system waterproofing course that punctures, behind the 24h retaining leakproof, lay drainage blanket successively, isolate filtration beds, planting medium layer; Isolating filtration beds adopts weight to be not less than 250g/m ²The polyester fiber geotextiles; The planting medium layer adopts the artificial lightweight compost, or soil conditioner cooperates with soil with the ratio preparation of volume ratio 2: 1 or 1: 1 and uses, said artificial lightweight compost, mixture by rural area soil 65%, fine sand 10%, baked wheaten cake soil 25%, 0.4% the calcium magnesium phosphate material that adds mixture weight is again formed, and the plantation plant is purchased into layer of plants on the planting medium layer.

4, the job practices of planted roof according to claim 3 is characterized in that, said drainage blanket adopts the GT-DP-M28 type, and thickness is the built on stilts band drain of 28mm lightweight thin layer, every m ²Weight is 2.8kg, own wt 80～120kg/m ²

5, the job practices of planted roof according to claim 3 is characterized in that, said baked wheaten cake soil is that clay forms through high-temperature firing, particle hollow, the many and rounding of surperficial pore.