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

Quick Decision

Question	Answer	Confirm Details
Is it suitable for coastal industrial buildings?	Engineered for high-humidity, salt-spray and heavy-rain environments. Applicable to coastal factories, warehouses, extensions and renovation projects.	Coating system, zinc / galvalume coating mass, salt spray test results and real project references.
What specifications are available?	Width: 950 / 1150 mm; Thickness: 50 / 75 / 100 / 120 / 150 mm; Length: 1–20 m.	Confirm effective / overall width and maximum length permitted for transportation.
What are the face sheet and core material?	PPGI / GI / PPGL; Flame-retardant EPS, density 12–20 kg/m³.	Confirm standard & optional items; Unify galvalume coating description across product copy.
What about fire performance?	B2/B1 fire rating; tested per EN 13501-1 and ASTM E84.	Supply actual results, report No. and lab info for each standard separately.
How to prevent rain leakage?	Tongue-and-groove/lap joints with sealing strips/gaskets to mitigate water ingress.	Confirm joint details, sealant type, roof slope, flashings and installation procedure.
What is the service life?	Typical service life: 10–20 years.	Specify applicable conditions, maintenance rules and warranty terms.

product-1267-633

Technical Specification

Key specification	Current available option
Panel thickness	50 / 75 / 100 / 120 / 150 mm
Width	950 / 1150 mm
Length	1–11.8 m
Steel sheet thickness	0.3–0.8 mm
Facing material	PPGI / GI / PPGL color-coated steel sheet
EPS density	12–20 kg/m³
Thermal conductivity	As stated in source: as low as 0.033 W/(m·K); verify test basis before publication
Working temperature	-40°C to +70°C
Color	Full RAL color chart

Coastal Corrosion & Waterproofing

Designed for coastal industrial environments where prolonged humidity, salt spray and heavy rainfall can increase the risk of corrosion and water ingress.

White Surface & Thermal Performance

The white exterior surface is designed to reflect more solar radiation than darker roof surfaces, helping reduce solar heat absorption. Actual thermal performance depends on panel thickness, EPS properties, climate and building design.

Thickness Selection

Thickness	50 mm	75 mm	100 mm	120–150 mm
Typical decision direction	General/light insulation requirements	Higher insulation requirement than 50 mm	Higher thermal insulation demand	Projects requiring greater insulation thickness
Information still required	Project thermal target and climate	Required U-value/R-value	Thermal calculation and project use	Thermal calculation, structure and budget
Typical U-value	0.72 W/(m²·K)	0.48 W/(m²·K)	0.36 W/(m²·K)	0.30 / 0.24 W/(m²·K)
Typical R-value	1.39 m²·K/W	2.08 m²·K/W	2.78 m²·K/W	3.33 / 4.17 m²·K/W
Water Absorption (Core)	≤4% (vol.)	≤4% (vol.)	≤4% (vol.)	≤4% (vol.)
Compressive Strength (EPS Core)	≥120 kPa	≥120 kPa	≥120 kPa	≥120 kPa
Roof Load Capacity	Light roof load; depends on steel gauge & support spacing	Medium roof load; check purlin spacing	Medium-heavy roof load	Heavy roof load, longer span design
Maximum Span	Max span ~2.0–2.4m;	Max span ~2.4–2.8m;	Max span ~2.8–3.2m;	Max span ~3.2–3.8m;

Roof Engineering Data Still Needed

Procurement item	To be completed by supplier
MOQ	1m or negotiation
Lead time	7‑10 working days upon confirmed deposit
Sample	Free sample and confirm the specification in advance
Container loading	Reference loading capacity: - 50 mm EPS panel: 550 – 590 m² /20GP; 1280 – 1330 m² /40HQ - 75 mm EPS panel: 370 – 410 m² /20GP; 860 – 920 m² /40HQ - 100 mm EPS panel: 280 – 310 m² /20GP; 640 – 690 m² /40HQ Roof panels, extra-long panels and accessories will reduce loading volume. Final loading layout and exact quantity will be offered once your detailed specifications are confirmed.
Packaging	Waterproof PE film + fumigated wooden pallet + edge protector, as stated
Accessories	Fasteners, sealing strips, flashing available
Documents	Text Report or third-party Report
Port	Dalian
Payment terms	TT/LC/EXW or negotiation
Quotation Content	Thickness + width + length + steel thickness + coating + color + quantity + destination

Customization & Packaging

Custom options cover the full RAL colour spectrum, flame-retardant high-density EPS cores, and standard or reinforced panel edges. Matching accessories including fasteners, sealing strips and flashing can be supplied. Samples are wrapped in bubble film and packed into rigid cartons. Bulk orders are packaged with waterproof PE film on fumigated wooden pallets fitted with edge protectors.

Applications

Engineered for coastal industrial environments with humid and salt-spray conditions widely seen across South America. Suitable for coastal factories, warehouses, industrial extensions and roof renovation or replacement projects, delivering reliable long-term performance under corrosive coastal climates.

Procurement Information

Procurement item	To be completed by supplier
MOQ	1m,but 20GP is for suitable for oversea purchaser,the cost and shipping fee are more competitive.
Lead time	7‑15 working days upon confirmed deposit
Sample	Free sample and confirm the specification in advance
Container loading	Reference loading capacity: 50 mm EPS panel: 950‑1100 m² /20GP; 1900‑2200 m² /40HQ 75 mm EPS panel: 720‑820 m² /20GP; 1440‑1640 m² /40HQ 100 mm EPS panel: 550‑630 m² /20GP; 1100‑1260 m² /40HQ Note: Roof panels, extra‑long panels and accessories will reduce loading volume. Final loading layout will be offered after confirming your exact specs.
Packaging	Waterproof PE film + fumigated wooden pallet + edge protector, as stated
Accessories	Fasteners, sealing strips, flashing available
Documents	Text Report or third-party Report
Port	Dalian
Payment terms	TT/LC or negotiation
Quotation Content	Thickness + width + length + steel thickness + coating + color + quantity + destination

FAQ

Q: Can these panels be used in coastal areas?

A: They are positioned for coastal industrial environments with humidity, salt spray and heavy rainfall. Final suitability should be checked against corrosion exposure, coating specification, roof design and installation requirements.

Q: Which thickness should I choose?

A: Available thicknesses are 50, 75, 100, 120 and 150 mm. Final selection should follow the project's thermal target, climate, building use and local code.

Q: What coating is available?

A: The original page lists PPGI, GI and PPGL, while the product description emphasizes an aluminum-zinc coated corrugated outer sheet. Confirm the exact substrate/coating system for the quotation.

Q: Can you provide fire-test reports?

A: Request the applicable report and classification/result for the required standard before specification.

Q: What accessories are available?

A: The original page lists fasteners, sealing strips and flashing. Confirm the complete accessory set for the roof system.

Q: What information is needed for a quotation?

A: Provide project location, panel thickness, width, length, steel thickness/coating, color, quantity, required fire/corrosion standards and accessories.

RFQ

Send the following information for a project-specific quotation:
1. Roof area / building dimensions
2. Project location
3. Existing roof photos or drawings
4. Required panel thickness, if known
5. Estimated quantity
6. Required delivery date
The quotation should include: recommended specification, quantity calculation, accessory list, packing/loading plan, price, lead time and applicable technical documents.