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QINHUANGDAO DIWEI CONSTRUCTION MATERIALS CO., LTD
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Sheet Green Roof Waterproof Membrane System Impermeabilization For Roof Garden

QINHUANGDAO DIWEI CONSTRUCTION MATERIALS CO., LTD

Sheet Green Roof Waterproof Membrane System Impermeabilization For Roof Garden

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Brand Name : DWD WATERPROOFING

Model Number : DWD 120

Certification : ISO

Place of Origin : China

MOQ : Negotiable

Price : Negotiable

Payment Terms : L/C, T/T

Supply Ability : 10000 square meter per day

Delivery Time : 15-20 days generally, or depending on your order.

Packaging Details : Woven bag packaging for every roller

Material : Polyethylene , PE

Thickness : 0.6 - 1.2mm

Density : 360 - 600g/m2

Width : 1150 - 6000 mm or customized

Free Sample : Available

Weldable : Yes

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Polymer Polyethylene Material Green Roof Waterproofing Membranes


The function of root puncture resistant is an important feature of DWD waterproofing membranes. Moreover, weldability and adhesion will shorten the installation schedule and reduce the risk of water leakage and moisture seeping in the green roof waterproofing system.


Weldability

Weldability is an important and effective waterproof character of DWD waterproofing polyethylene membranes. Engineers are often troubled by leaking from joints in waterproof membranes. However, DWD polyethylene waterproofing membranes can be welded by hot air guns, even the auto-moving welding machines which can reduce construction time, saving budget in green roof waterproof works.


Adhesion

DWD waterproofing can be bonded by cement adhesive to form a stable waterproof layer, ensure the rooftops are away from water leakage and moisture seeping.


With those features as described above DWD waterproofing membrane will be your best choice in green roof waterproof system.


DWD 120 Waterproofing Membrane Brochure.pdf


Features of DWD waterproofing membranes
Excellent waterproofing and anti-seepage ability.
Good tensile strength, adaptability to deformation and flexibility at low temperature to meet wide temperature range application.
Soft texture, good adhesion, can be installed in no obvious water condition and firmly bonded.
Long service life, chemical corrosion resistance, aging resistance, non-toxic.

Specification of DWD waterproofing membranes please see the sheet below.

Thickness (mm)Length (m)Width (mm)Area (m2/roll)
0.660.9

1150

70
0.760.970
0.856.565
0.950.057.5
1.243.550
Note: Width can be customized such as 1500mm, 2000mm, 3000mm and 6000mm, etc.


Parameters and Standard
The parameters of DWD waterproofing membranes meet the standard of GB 18173.1-2006 High Polymer Waterproofing Materials as shown below.

ItemParameter/Result
Breaking tensile strength (N/cm)Normal temperature≥60
60℃≥30
Elongation at break rate (%)Normal temperature≥400
-20℃≥10
Tear strength (N)≥20
No leakage performance (0.3Mpa, 30min)No leakage
Bending temperature under low temperature (℃)≤-20
Heating expansion amount (mm)Extension≤2
Contraction≤4
Hot air aging (80 C x 168h)Retention rate of tensile strength (%)≥80
Breaking tensile strength retention rate (%)≥70
Alkali resistance (mass fraction of 10% Ca (OH) 2 solution at normal temperature x 168h)Retention rate of tensile strength (%)≥80
Breaking tensile strength retention rate (%)≥80
Artificial climate agingRetention rate of tensile strength (%)≥80
Breaking tensile strength retention rate (%)≥70
Bond peel strengthStandard test condition (N/mm)≥1.5
Soaking retention rate (%)Normal temperature x 168h70
composite strength (surface and core layer) (N/mm)≥1.2

Note:
Normal temperature is defined +25℃.
The performances of artificial climate aging, heating expansion amount, breaking tensile strength at 60℃should not consider if waterproofing membranes are non-exposed.
For the total thickness is less than 1.0mm of the resin composite waterproofing membranes, its elongation at break rate should not be less than 50%, and other performances can reach more than 80% of the prescribed value.


Parameters of cement adhesive should meet the standard of GB 50108-2008 Technical Specification For Waterproofing Of Underground Works as shown below.

ItemParameter/Result
Bond tensile strength (Mpa) with the cement substrate surfaceNormal temperature in 7days≥0.6
Water resistance≥0.4
Freezing resistance≥0.4
Operating time (h)≥2
Permeability resistance (Mpa, 7d)≥1
Adhesion under shear condition (N/mm = normal temperature)Membrane to membrane≥2.0
Membrane to substrate≥1.8
Compression strength (Mpa)≥9
Flexibility (28d)compression strength/bending strength≤3
Note:
Normal temperature is defined +25℃.
The performances of compression strength and flexibility must meet the parameters as shown above when roofing waterproofing works.

Installation Guide
A complete waterproofing work should include the following steps:
The base or concrete cleaning and checking (leveling blanket) → Making cement adhesive → Special areas and joints waterproofing membranes laying → Waterproofing membranes laying → Seams sealing → Waterproofing works checking → protection layers installation (if needed) → Maintenance
Notes for roof waterproofing:
Before roof waterproofing, it is necessary to carefully check the roof construction drawings, master the details of the construction drawings and related technical requirements.
Seams of waterproofing membranes are a key point in roof waterproofing works. Make sure all the seams are well welded. The junction of two waterproofing membranes should be more than 50mm for welding.


Package and Storage
Each roll of DWD waterproofing membranes is packed by a woven bag and plastic plugs in both ends. Beyond that, we are surely available to provide your customized service including design, brands, color, etc.
For storage, It is advisable to store the waterproofing membrane rolls in a dry place, sheltered from the sun in the summertime, because of the greenhouse effect. And It should also keep the waterproofing membrane rolls in the temperature range of -38℃ to +40℃. Different categories and specifications should be classified and should not be inclined or cross-stressed. And always keep the waterproofing membranes away from a fire.

Get a FREE SAMPLE service to know more about DWD waterproofing membranes please email us: info@dwdwaterproofing.com


DWD WATERPROOFING customized service of DWD waterproofing membranes
Sizes are all customized in a wide range (maximum width is 6000mm).
Avialiable for on-site installation guidance.
The free sample will help you quickly know about our products.
Other requirements.
waterproofing membranes manufacturer
Weldable DWD waterproofing membranes.

DWD WATERPROOFING is a manufacturer of waterproofing membranes with well-equipped producing facilities and seasoned team.

If you are interested in any of our waterproofing membranes or would like to discuss a custom order, please feel free to contact us. We are looking forward to forming successful business relationships with new clients around the world in the near future.


Product Tags:

root barrier membrane

      

roof sealing membrane

      
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