Shenyang Qiangyun Color Steel & Steel Structure Co., Ltd. is one of the most reliable manufacturers and suppliers of sandwich panel 120mm eps roof in China. With abundant experience, we are committed to providing high quality customized products with competitive price. Welcome to wholesale advanced sandwich panel 120mm 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, with 10+ years of export experience. We run automated continuous lamination lines with mature scheduling and export-compliant documentation.

In-house process: steel-coil leveling → EPS foaming → hot-press lamination → cutting → packing.
Raw-material stock kept sufficient for fast scheduling and short lead times.
Exported to Middle East, SE Asia, Africa, South America; serves 20+ countries.
Capacity for both bulk orders (factory-price discount) and small-batch trial orders.

Certifications

Equipped with complete ISO management system certificates and EU EN material certifications. We enforce standardized production and strict quality control to ensure every panel meets international engineering application standards.

Product Introduction

This 120mm EPS roof sandwich panel uses virgin EPS core and galvalume steel sheets. Its tongue-and-groove joint delivers reliable waterproofing, great thermal insulation, easy installation, ideal for warehouses, workshops and greenhouses.

Technical Specifications

Parameter	Specification
Core Thickness	120 mm (fixed)
Effective Width	950 mm / 1150 mm
Length	1m –11.8 m
Sheet Thickness	0.3 – 0.8 mm
Facing	PPGI / GI / PPGL (galvalume) 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 ℃ ~ +7 ℃
Surface Weight*	≈ 12 – 16 kg/m² (120mm)
Wind/Snow Load*	1.0 kPa / 102 kg/m²
Water Absorption	Low (closed-cell EPS)
Service Life	10 – 15 years (see warranty §14)
Color	Full RAL chart + custom match

Applications

Sector	Typical use	Why 120mm fits
Heavy industry	Large steel plants, heavy workshops, logistics warehouses	Max insulation + load for big roofs
Agriculture	Greenhouses, fresh-storage, produce warehouses	Stable temp, low swing, protects goods
Temporary	Site offices, worker dorms, carports	Light, low load, fast install
Civil	Parking canopies, market-stall roofs	Easy assemble / retrofit

Roofing Challenges & Our Solution

Challenges

Thin panels: weak insulation, high energy cost, uneven core, easy leak.
Big roofs: need higher load grade and stable temp for equipment/goods.
Moisture & condensation: poor cores absorb water, grow mold.
Procurement: long lead, no certs, unclear pricing for small batches.

Our Solution

120mm full virgin EPS core: top insulation, resists heat & cold, cuts energy.
Galvalume faces + adjustable steel thickness / core density for load grade.
Tongue-and-groove sealed joint: waterproof, anti-condensation.
Fast scheduling + cert/customs support + tiered pricing .

Panels Advantages of thick VS thin

True 120mm max-core: insulation far beyond thin panels, clear long-term energy saving.
Galvalume skins: superior corrosion resistance vs. ordinary galvanized.
Strong sealed tongue-and-groove joint: low leakage, anti-condensation.
Customization: core density & steel thickness adjusted to load / insulation grade.

Customization Service

With sufficient raw-material stock and flexible scheduling, we cut lead time and match your project exactly:

Length: cut to any length per roof span, transport limit and crane condition - no on-site re-cut, no waste or waterproof damage.
Color: dozens of standard RAL colors, or custom-matched to your sample.
Grade: adjust core density and steel thickness for different load and insulation levels.
Branding: client LOGO, shipping marks, brand labels; neutral bare-panel option.

Procurement Benefits

Fast scheduling: automated line + mature planning compresses production cycle.
Small-batch trial: we accept small trial orders to lower your first-order risk.
Tiered volume discount: bulk orders get factory-price discounts (see Commercial Terms).
Certification & customs: we assist product certification per destination country and provide clearance documents.

After-sales Service

We offer free pre-order technical consultation, real-time production QC updates, full shipment tracking, remote installation guidance, quick quality support and long-term spare parts supply for overseas buyers.

Sample Policy

Sample Types: A4 color swatches, 300–500mm cut pieces or full 120mm panels available upon request.
Lead Time: 2–3 working days for standard samples; 5–7 days for custom colors.
Sample Cost: 1 piece free of charge. Extra samples at cost. Freight collect, or deduct sample cost from bulk orders.
Sample Request: Send your specifications via email or WhatsApp.

Comparison

Feature	Thin EPS panel	Our 120mm EPS
Core thickness	<120mm / uneven	True 120mm full
Insulation	Poor	Excellent (max-core)
Facing	Ordinary galvanized	Galvalume (Al-Zn), corrosion-resistant
Joint	Weak	Tongue-and-groove sealed
Load / grade	Fixed	Tunable (density/steel)
Service life	Short	10–15 yr (warranty)

Warranty & Quality Commitment

Warranty includes 10-year anti-corrosion facing coat & structural coverage. It covers non-artificial delamination, heavy coating loss and core failure, with free replacement or proportional refund, plus long-term overseas spare parts support.

FAQ

Q: What is your reference price?

A: FOB Dalian US$3.6–12.6/m² for 120mm panels. Price depends on color & face sheet, volume tiered discount offered.

Q: Is the core full 120mm virgin EPS?

A: Yes, full 120mm virgin EPS core. Thickness can be verified during inspection.

Q: What is your MOQ?

A: MOQ is 1 m². Small trial batches are accepted.

Q: What is your production lead time?

A: Fast scheduling. Standard:5–7 days; customized:10–15 days.

Q: Can I customize panel specifications?

A: Yes. Adjustable core density, steel thickness & cutting length; RAL/custom colors, branded or neutral packing.

Q: Payment terms?

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

Q: Shipping terms & loading ports?

A: FOB/CIF/CFR/EXW negotiable. Loading ports: Dalian, Tianjin, Qingdao, Shanghai.

Q: Packing & document support?

A: Samples: bubble bag+carton. Bulk: waterproof PE film, fumigated wooden pallets + edge protectors. We provide certification and customs clearance documents.

Contact & Get a Quote

Send us your project dimensions, target panel thickness and color preferences. Our team will prepare a tailored quotation and respond to you within 24 hours.