What materials are used in the roof underlayment?

The material consists of PP Fabric and Asphalt, with a surface of smooth polypropylene fiber on polyester filament fabrics.

What is the thickness and size of the product?

The thickness is 0.8mm or 1.0mm, and the volume size is 25m2 or 30m2 with a width of 1000mm.

How should the product be applied?

Use nails with a density of 30 nails per square meter. Ensure it is smooth without folds. Junction width for the same layer should be no less than 50mm, and for upper and lower layers, no less than 80mm.

Construction Building Waterproof Materials Asphalt Roof Underlay

Name: Construction Building Waterproof Materials Asphalt Roof Underlay
Brand: Cangzhou Jiansheng Building Waterproof Material Co., Ltd.
SKU: 2186826405

Hebei, ChinaCangzhou Jiansheng Building Waterproof Material Co., Ltd.

US$1.30

100-999 Square Meters

US$0.80

1,000+ Square Meters

Sample price:US$1.10/square meter.Request sample

Product profile

Customization

Available

Product Name

Vapour Permeable Membrane

Thickness

0.8mm

Model NO.

YEP 500

Size

1m*25m

Weight

12.5 Kg

Material

Pet No-Woven Fabric,PP No-Woven Fabric,Asphalt

Surface

Smooth

Delivery Time

7-15 Days

Watertightness

Transmission

Transport Package

Pallet

Specification

1m*25m

Trademark

Jian Da

Origin

China

HS Code

5603149000

Production Capacity

50000 Rolls/Month

Key features

Patented Waterproofing Formula: National patent technology with adjusted SBS, SBR, and terpene resin for superior physical indices.

Multi-Scenario Application: Suitable for slope roofs, walls, underground projects, and damp-proofing for cement tiles and shingles.

Long Service Life: Durable construction with a service life lasting more than 20 years for modern building industry.

Certified Quality Standards: Strictly meets national standards and has passed ISO9002 certification for reliability.

Professional OEM/ODM Support: Professional manufacturer offering both OEM and ODM services to meet customer requirements.

Eco-Friendly Material: Made from PP fabric and asphalt, designed to be environmental friendly for sustainable construction.

Flexible Customization: Offers customization from samples, designs, and minor adjustments to fit specific project needs.

Efficient Production Control: Direct factory manufacturer ensuring efficient control over production time and delivery schedules.

Company profile

Exhibition ExperienceImporters and ExportersHigh Repeat Buyers Choice

Cangzhou Jiansheng Building Waterproof Material Co., Ltd.

Hebei, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 8 years CertifiedNearest Port: Tianjin PortAverage Response Time: ≤2.89h

AI-Powered supplier vetting

SummaryThe supplier is a combined manufacturing and sales company focused on lightweight and higher-grade building waterproof materials, including SBS and APP modified bitumen membranes, polypropylene, and PE polyester products. It reports domestic production lines, annual capacity of 8 million square meters, and a quality assurance system. The supplier supports extensive product customization and has exported for eight years, with exports representing 51%–70% of total sales. However, service, corrective-action, complaint-handling, supplier-assessment, and traceability processes lack written procedures or records. It has no SDK, overseas warehouse, showroom, overseas agent or branch, and does not provide OEM services for popular brands. Financial information is limited to stated years without performance values, while environmental and fire-drill statuses are unknown.

Supplier typeThe supplier is identified as a combined company engaged in manufacturing and sales of lightweight waterproof materials, waterproofing and insulation construction services, and import/export activities. Its stated product range includes SBS and APP modified bitumen membranes, polypropylene, and PE polyester materials.

After-Sales capabilityThe supplier has eight years of export experience, accepts common trade quotation terms, and reports one-month lead times in both peak and off-season periods. However, it has no written procedures or records for complaint handling, corrective and preventive actions, or service-capability assessment, and has no overseas warehouse, showroom, agent, or branch.

Production capacityThe supplier reports domestically advanced production lines, advanced equipment, a quality control system, and annual production capacity of 8 million square meters. Quality control resources include one inspection staff member and five test-equipment units; these stated facilities and capacity provide explicit evidence of production capability.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, minor customization, and flexible customization. Its R&D engineer is assigned to customize products based on customer needs, directly supporting a broad customization capability.

Product Q&A

Q:What is the product range?

We mainly produce SBS modified bitumen membrane, ASTM standard paper based asphalt roofing felt, EN standard breathable waterproof underlayment, self-adhesive polymer modified bituminous waterproof membrane and other waterproof coating.

Q:Are samples free?

Yes, we provide free samples. You should pay for the freight, which shows our sincerity. We can return the money to you when you place an order from us.

Q:What is the delivery time?

As a manufacturer, we efficiently control production time. Usually, our delivery time is 10-25 working days.

Q:What are the payment terms?

30% on deposit, 70% balance against copy of B/L after loading.

Q:Can you produce according to customer requirements?

Sure, we are a professional manufacturer, and OEM and ODM are both welcome.