Fireproof Rockwool/EPS Insulated Steel Roof/Wall Sandwich Panels for Steel Buildings

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Product Description

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Overview & Basic Info

Model Type950/1150
Effective Width950 mm / 1150 mm
Panel Thickness50 / 75 / 100 / 150 / 200 / 250 mm
LengthMax 5.95m for 20GP; 11.95m for 40GP/HQ
Core DensityRock Wool: 80-150 Kg/M3 | EPS: 8-24 Kg/M3
Surface SheetsPPGI / PPGL / Aluminum Sheets / Al-Mg-Mn Alloy
Coating TypePE / PVDF / HDP / SMP
UsageWall and Roof Decoration of Steel Buildings
Regular ColorsWhite Grey, Sea Blue, Sliver Grey, Dark Grey
CertificationISO9001
Production Capacity100,000 Square Meter Per Month
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Product Introduction

What is a sandwich panel?
A sandwich panel is a structure made of three layers: a low-density core (PIR, mineral wool, EPS) and a thin skin-layer bonded to each side. These panels are used in applications requiring a combination of high structural rigidity and low weight.

Product Advantages

Insulated Steel Panels
Sandwich Panels Advantage

General Benefits

  • Good sound insulation and absorption
  • Excellent thermal properties
  • A1 level fire-resistant properties
  • Excellent for outdoor use
  • Easy and fast installation

EPS Specific Benefits

  • Lightweight, easy to lift and erect
  • Variety of colors available
  • Long life time and low maintenance
  • Good waterproof functionality
  • Competitive price for budget saving
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Panel Model Types

1) Hidden Screw (Concealed) Joint for Roof

Hidden Screw Type 1
Hidden Screw Type 2

2) Overlapping Joint Roof Panels

Overlapping Joint

3) Z-Lock Joint for Wall Panels

Z-lock Joint

4) Tongue & Groove Joint for Wall Panels

Tongue and Groove Joint

Wall Panel Rib Options

Choice of V-ribs or Pure Flat profiles.

Wall Rib Types
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Technical Specifications

Rockwool Sandwich Panels

Steel Thickness0.30 - 0.70mm
Core Density80 - 150 KG/M³
Effective WidthWall: 950/1150mm | Roof: 960mm
Fire ResistanceA1 Level

EPS Wall Sandwich Panels

Steel BrandBao-steel, Guanzhou steel, Xinyu steel, etc.
Coating LayerTop: 20-25μm | Bottom: 7-10μm
EPS Density8-20 KG/M³
Fire ResistanceB1 Level (GB/T 23932-2009)
AccessoriesU channels, self screws, expanded bolts, flashings

Regular Color Range

Color Swatches
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Product Application

Perfectly suited for steel structure workshops, warehouses, clean rooms (walls and ceilings), gymnasiums, exhibition halls, airports, movable dwellings, and refrigerators.

Application 1
Application 2
Application 3
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Packing & Delivery

Packing Standards

  • PVC protection on both sides
  • Kraft paper for end protection
  • EPS foam spacing to prevent squeezing
  • Seaworthy standard packaging

Delivery Terms

  • Regular colors: 7-10 days
  • Special colors/specs: 15-25 days
  • Terms: FOB, CIF, CFR, DDP available
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Service & Support

  • Professional sales team with one-to-one service
  • Direct industry and trade combination for better pricing
  • Experienced engineer team for technical support
  • Dedicated after-sales service

Frequently Asked Questions

What core materials are available for these sandwich panels?
We offer high-quality Rockwool (mineral wool) for fire resistance and EPS (Expanded Polystyrene) for lightweight thermal insulation.
What is the fire resistance rating of the panels?
Rockwool panels achieve an A1 fire-resistant level, while EPS panels are rated at B1 level according to GB/T 23932-2009 standards.
Can the length of the panels be customized?
Yes, we customize lengths based on container sizes. Usually, we advise a maximum of 5.9m for 20FT containers and 11.9m for 40FT containers.
What are the standard widths for wall and roof panels?
The effective width for wall panels is typically 950mm or 1150mm. Roof panels usually have an effective width of 960mm.
How long does it take for delivery?
For regular colors and thicknesses, the lead time is 7-10 days. Special or customized orders typically take 15-25 days.
Do you provide installation accessories?
Yes, we provide necessary accessories including U-channels, self-tapping screws, expanded bolts, and flashings to ensure smooth installation.

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