What is the warranty or quality guarantee?

We provide pre-production samples before mass production and final inspection before shipment.

What payment methods are accepted?

Accepted payment types include T/T, L/C, Credit Card, PayPal, Western Union, and Cash.

How should the membrane be installed?

Lay printed side up, overlap joints based on roof pitch, and secure with battens or tape.

Waterproof Permeable Membrane for Roofing with W1 Water Penetration Resistance

Name: Waterproof Permeable Membrane for Roofing with W1 Water Penetration Resistance
Brand: Nantong Kingway Complex Material Co., Ltd.
SKU: 2245620315

Jiangsu, ChinaNantong Kingway Complex Material Co., Ltd.

US$0.199-0.45

50,000 Square Meters

Product specifications

Length

Product profile

Customization

Available

Certification

Thickness

0.3mm-0.8mm

Model NO.

Type

Waterproof Membrane

Material

PP PE

Roll Width

1.5m ; 1m

Roll Length

50m ; 30m ; Customized

Application

Pitched Roof or House Wrap

Color

White, Black, Grey, Brown, Green

Water Tightness

Transport Package

PE Bag

Specification

1.5m*50m; 1m*50m; customized

Origin

China

HS Code

5603

Key features

High Water Vapor Permeability: Provides unique air permeability while preventing moisture infiltration.

Superior UV Resistance: Polyolefin material offers up to 180 days of UV resistance.

Customized Roll Length: Available in 50m, 30m, or fully customized lengths to suit needs.

Multi-Color Options: Available in White, Black, Grey, Brown, Green, or customized colors.

High Tensile Strength: Features very high tensile strength for durable roofing performance.

Easy Installation: Optional integral self-adhesive tape simplifies the installation process.

Class W1 Water Tightness: Meets Class W1 water tightness standard for effective waterproofing.

Customized Material & Logo: Offers special parameters and customer logo printing options.

Company profile

Product CertificationODM ServicesStandardized quality controlProduction Process Visualization

Nantong Kingway Complex Material Co., Ltd.

Jiangsu, China

Business Type: Manufacturer/Factory, Trading CompanyAverage Response Time: ≤2.07h

AI-Powered supplier vetting

SummaryThe supplier demonstrates customization and ODM capabilities, has launched new products, and reports three R&D engineers. It holds CE and ISO9001:2015 certifications, maintains written procedures for finished-product inspection, supplier-service assessment, corrective actions, and complaint handling, and reports inventory capability. However, it does not provide 3D software design, has no overseas warehouse, showroom, agents, or branches, and offers services in zero stated countries. No valid manufacturing-capacity contract with related subcontractors is reported. Financial credibility cannot be established because the provided financial fields contain zero values or year labels without supporting performance details. No Fortune 500 customer or popular-brand OEM experience is reported.

CertificationsThe supplier reports CE product compliance certification and an ISO9001:2015 management-system certificate. These explicit certifications support compliance and quality-management capability.

After-Sales capabilityWritten procedures and followed records are reported for supplier-service assessment, corrective and preventive actions, and customer complaints. However, the supplier states zero countries with overseas services and lacks overseas agents, branches, warehouses, and showrooms, limiting evidence of broad localized support.

Financial creditThe provided financial information reports zero operating revenue, operating costs, gross profit, operating profit, and current-ratio values across the stated periods. These records do not establish financial strength or operating stability; they indicate a material lack of demonstrated financial performance.

R&D capabilityThe supplier reports new products during the past year, offers ODM services, and has three R&D engineers. It does not provide an SDK, and no evidence is provided of 3D software design capability.

Customization capabilityThe supplier explicitly offers customization from designs, customization from samples, full customization, minor customization, and ODM services. This is direct evidence of broad product customization capability, although 3D software design is unavailable.

Client casesThe supplier reports no collaboration with Fortune 500 companies and no OEM service for popular brands. Its documented external market activity is participation in the 2024 Uzbekistan International Hardware, Building Materials and Home Decor Products Exhibition, but no specific customer cases are provided.