What are the payment terms and lead times?

Payment terms are T/T or LC. Lead time is within 15 workdays off-season and one month during peak season.

Self Adhesive Breathable Waterproof Roofing Underlayment Membrane

Name: Self Adhesive Breathable Waterproof Roofing Underlayment Membrane
Brand: Nantong Kingway Complex Material Co., Ltd.
SKU: 2249108895

Jiangsu, ChinaNantong Kingway Complex Material Co., Ltd.

US$0.60

30,000-99,999 Square Meters

US$0.30

100,000+ Square Meters

Product specifications

customized

Product profile

Customization

Available

Certification

CE, ISO

Thickness

0.3mm-0.6mm

Model NO.

Type

Waterproof Menbrane

Material

PP+PE

Packing

Transparent Bag or Heat Shrink Film

Transport Package

HDPE Trasparent Bag

Specification

1.5*50

Trademark

KIGNWAY

Origin

China

Production Capacity

40 Containers

Key features

Breathable Waterproof Protection: Microporous film repels water while allowing moisture vapor to escape, reducing condensation and mold risk.

Customizable Specifications: Available in customized width, length, and color to meet specific project requirements.

High Durability & Tear Resistance: Engineered for long-lasting performance with tear resistance to withstand challenging installation conditions.

Energy Efficiency Improvement: Helps control heat transfer and adds insulation, improving the building's overall energy efficiency.

UV & Weather Resistance: Safeguards roof deck from direct sunlight and acts as a backup defense against wind-driven rain and snow.

Certified Quality Assurance: Manufactured under ISO9001 quality management system with CE certification for guaranteed reliability.

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: ≤5.04h

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.

Product Q&A

Q:What is the difference between breathable and non-breathable roofing felt?

Non-breathable felt acts as a complete barrier and requires ventilation below to prevent condensation. Breathable membranes contain a microporous film that allows moisture vapour to escape while still repelling water.

Q:Do I still need ventilation when using a breathable membrane?

Breathable membranes greatly reduce condensation risk, but most roofs still require some ventilation at the eaves and ridge to meet building regulations and manage residual moisture.

Q:How long will a breathable membrane last?

When properly installed and protected by the roof covering, breathable membranes can last for several decades. Their lifespan may be reduced by prolonged UV exposure, incorrect fixing or mechanical damage, so always follow the manufacturer's instructions.

Q:Which way up do I lay a breathable membrane?

Most membranes have a printed or darker side that should face upwards during installation. This side offers better UV resistance. However, since most are vapour-open on both sides, performance is not significantly affected if installed the other way up.

Q:What are the available thickness and weight options?

The thickness ranges from 0.3mm to 0.6mm, and the weight options are 70g to 220g.