Shenyang Qiangyun Color Steel & Steel Structure Co., Ltd. is one of the most reliable manufacturers and suppliers of composite sandwich panel eps roof in China. With abundant experience, we are committed to providing high quality customized products with competitive price. Welcome to wholesale advanced composite sandwich panel eps roof in stock here from our factory. Also, pricelist is available.

About Us & Factory

Shenyang Qiang Yun is a sandwich-panel manufacturer established in 2010 in Liaoning Province, with 10+ years of export and manufacturing experience. We run fully automated continuous lines with stable capacity and controllable lead times, serving contractors, traders and wholesalers worldwide.

Certifications

We adopt international integrated management systems covering quality, environment, occupational safety and energy saving. Our coated and galvanized steel raw materials fully meet EU EN industrial standards for stable product performance.

Product Introduction

A precision tongue-and-groove joint gives reliable sealing and waterproofing, while the panel is light yet strong, with insulation, moisture and sound control, and fast installation. Thickness, profile and color are customization - widely used for steel plants, warehouses, prefab board houses, greenhouses and temporary venues.

Technical Specifications

Parameter	Specification
Core Thickness	100 mm (fixed)
Effective Width	950 mm / 1150 mm
Length	1m –11.8 m
Sheet Thickness	0.3 – 0.8 mm
Facing	PPGI / GI / PPGL color-coated steel
Core	Flame-retardant EPS (virgin, closed-cell)
Core Density	12 – 20 kg/m³
Thermal Conductivity λ*	≈ 0.038 – 0.042 W/(m·K)
Fire Rating	B2 / B1 (EN 13501-1, ASTM E84)
Working Temp.	-40 ℃ ~ +70 ℃
Surface Weight*	About 11 – 15 kg/m² (100mm)
Wind/Snow Load*	1.0 kPa / 102kg/m²
Water Absorption	Low (closed-cell EPS)
Service Life	10 – 15 years (see warranty §13)
Color	Full RAL chart

Applications

Sector	Typical use	Why composite EPS fits
Industrial	Steel plants, warehouses	Light, strong, fast install, insulation
Prefab	Board houses, temporary venues	Modular, low load, easy relocate
Agriculture	Greenhouses, farm roofs	Stable temp, low swing
Civil / retail	Workshops, market canopies	Custom thickness/color, low cost

Roofing Challenges & Our Solution

Challenges

Thin / low-quality panels: weak insulation, delaminate, bulge, leak.
Harsh weather: UV and rain corrode cheap paint; condensation damages goods.
B2B buying: unclear pricing, no trade terms, no certs for customs.
Brand need: traders/wholesalers need private-label & compliant docs.

Our Solution

Galvalume faces + strong automated bond: no delamination/bulge, UV/rain resistant.
Tongue-and-groove sealed joint: waterproof, anti-condensation.
Transparent tiered pricing + flexible trade terms (see §7).
OEM/ODM with third-party certs & clearance docs (see §8).

Key Advantages

Manufactured via automated pressing, our EPS sandwich panels firmly bond galvalume skins to avoid delamination, bulging or deformation. With UV, rain and corrosion resistance, sealed joints provide waterproof functions. Lightweight and high-strength, they install rapidly while reducing structural load and providing excellent insulation. We offer full customization and OEM/ODM service.

Pricing & Order Model

We offer transparent tiered pricing for bulk clients, with unit prices decreasing as order volume increases. Small trial batches are available at reasonable premium. Long-term partners enjoy extra price and lead-time advantages, with flexible FOB/CIF/CFR terms to control your project budget.

OEM / ODM Service

As a source factory with full-process production lines, we guarantee stable, stable lead times and rigorous QC on panel density, bond strength and flatness. We offer flexible OEM services including custom logos and packaging, and ODM support to adjust thickness, profiles and EPS core. Third-party test certificates and customs documents can be supplied upon request.

Warranty and After-sales Service

Our EPS roof panels cover 10-20 years covered by contract and complete after-sales service, featuring 24/7 support, technical guidance, long-term spare parts supply and reorder priority for overseas buyers.

Sample Policy

Types: A4 swatch / 300–500 mm cut sample / full panel, on request.
Lead time: standard 2-3 working days; custom color/profile 7 days.
Cost: free up to 1pcs; beyond at cost; freight collect (or offset against order).
How to request: email / WhatsApp / website form with your specs.

Comparison

Feature	Low-quality thin panel	Our composite EPS
Bond / flatness	Delaminates / bulges	Strong automated bond, flat
Facing	Ordinary galvanized	Galvalume (Al-Zn), UV/rain resistant
Joint	Weak	Tongue-and-groove sealed
Pricing	Unclear	Tiered, transparent
OEM/ODM + certs	No	Yes (third-party certs + clearance)
Service life	Short	10–15 yr (warranty)

FAQ

Q: Pricing & volume discount?

A: FOB US$3.6–12.6/m² (by thickness/color/steel). Tiered discount; small trial batches slightly higher than FCL.

Q: MOQ & small trial?

A: MOQ =1 m². Small trial orders accepted, better pricing for bulk purchases.

Q: Production lead time?

A: 5–7 days standard; 10–15 days custom. Priority arrangement for long-term partners.

Q: Payment terms?

A: 30% T/T deposit +70% against B/L copy, or irrevocable L/C at sight.

Q: Incoterms & loading ports?

A: FOB/CIF/CFR optional. Ship from Dalian, Tianjin, Qingdao.

Q: OEM/ODM & customization?

A: Yes. Custom color, thickness, profile, steel grade, logo and neutral packing. Fire-modified core available.

Q: Certificates & customs documents?

A: Third-party test certificates and complete customs clearance documents provided.

Q: Packing for samples & bulk cargo?

A: Sample: bubble bag + carton. Bulk: PE film, fumigated pallet and edge protectors.

Contact & Get a Quote

Get a quote: send project area, thickness, facing, color, trade term and quantity - we return a formal quotation, test documents and production schedule within 24 hours.