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Root Resistant Green Roof Waterproof Membrane Sheet Underlayment PE Material

Categories Green Roof Waterproof Membrane
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: 1150mm to 5800mm Or Customized
Weldable: Yes
Free Sample: Yes
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Root Resistant Green Roof Waterproof Membrane Sheet Underlayment PE Material

Easy Installation Root Puncture Resistant Green Roof Waterproofing Membranes

Roof garden construction includes two important applications: the waterproofing and the garden assembly. The garden assembly application - Which means the waterproofing membranes should be root puncture resistant type.

DWD waterproofing membrane is a type of High-Density Polyethylene (HDPE) membrane, providing an excellent robust root-proof protection to the primary waterproofing membrane to green roofs or planters.

DWD 120 Waterproofing Membrane Brochure.pdf

The feature of DWD waterproofing membranes:

Excellent biological resistance.

Good tensile strength and designed to eliminate root penetration.

Soft texture, good adhesion and weldable, easy and quick to install.

Resistant to seawater and fertilizers, and suitable for existing and newly planted trees and plants.

Long service life, chemical corrosion resistance, aging resistance, non-toxic.

DWD waterproofing membrane is your best choice for green roof waterproofing works.


Specification of DWD PE waterproofing membranes please see the table as below.

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


Note: Width can be customized such as 1500mm, 2000mm, 3000mm and 6000mm etc.

The performance of DWD 120 waterproofing membranes meets the standard of GB 18173.1-2006 High Polymer Waterproofing Materials as shown below.

Breaking tensile strength (N/cm)Normal temperature≥60
Elongation at break rate (%)Normal temperature≥400
Tear strength (N)≥20
No leakage performance (0.3Mpa, 30min)No leakage
Bending temperature under low temperature (℃)≤-20
Heating expansion amount (mm)Extension≤2
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 aging

Retention 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


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.

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. If necessary, every junction of two waterproofing membranes should be more than 50mm for welding.

Roof waterproofing membranes

DWD Waterproofing membranes.

More information or FREE SAMPLE service please email us: info@dwdwaterproofing.com

DWD WATERPROOFING is a professional waterproofing membranes manufacturer and waterproof solution. Our service range including waterproofing membrane selling, waterproofing membranes OEM manufacturing, as well as on-site technical guidance.

If you are interested in any of our Puncture Resistant 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.

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