Color Steel Glass Wool Sandwich Panel | A1 Fireproof & Sound Absorption, Prefabricated Wall & Roof for Steel Structure Buildings

1. Product Overview

Color Steel Glass Wool Sandwich Panel is a premium tongue-and-groove metal-faced sandwich panel, specially developed as a prefabricated enclosure solution for modern steel structure buildings. Manufactured in strict accordance with GB/T 23932 national standard for building thermal insulation sandwich panels, this panel adopts a composite structure of double-layer color-coated steel sheets and high-density glass wool core. It is integrally molded through automated high-pressure lamination and high-temperature bonding processes.

Combining Class A non-combustible fire resistance, superior sound absorption, stable thermal insulation, reliable waterproof sealing, lightweight load-bearing capacity and long-term weather resistance, the panel features high structural integrity, excellent airtightness and extremely efficient on-site installation. Focused on professional noise reduction and fire-safe enclosure performance, it is widely applied for equipment rooms, soundproof workshops, large-span steel structure factories and outdoor noise barrier projects, serving as an ideal silent and fireproof building envelope material.

2. Core Structural Composition

Metal Surface Sheet
Constructed with high-quality color-coated galvanized or aluzinc steel sheets. The standard double-sided zinc coating reaches ≥80g/㎡, upgradable to ≥180g/㎡ for harsh outdoor and corrosive environments. Available substrates include DC51D and S250GD, paired with PE, HDP and PVDF premium weather-resistant coatings. Precision roll forming delivers a flat, smooth surface with outstanding acid and alkali resistance, UV stability and anti-ageing performance, effectively preventing long-term fading, peeling and surface corrosion.

High-density Glass Wool Core
Adopting ultra-fine glass wool fiber with a density ≥64kg/m³, the core achieves full GB 8624 Class A non-combustible performance. Its natural porous fiber structure provides excellent sound absorption efficiency and stable low thermal conductivity. The core material is formaldehyde-free and eco-friendly, fully suitable for long-term indoor and outdoor thermal insulation, fireproof and acoustic engineering projects.

Precision Tongue-and-Groove Interlocking Structure
Features standard male-female lap joint design for tight, seamless assembly. The optimized interlocking structure effectively blocks air leakage, water infiltration, heat loss and sound transmission, ensuring qualified building airtightness, watertightness, thermal insulation and sound insulation performance for complete building enclosure systems.

3. Core Product Features

Class A Non-combustible & Full Fire Code Compliance
The integral glass wool core meets GB 8624 Class A non-combustible standard, delivering smokeless, non-toxic and high-temperature resistant performance during fire exposure. As a professional fire-rated partition panel, it effectively inhibits flame spread and heat conduction, fully meeting fire inspection and acceptance requirements for building fire compartments and isolation walls.

High-efficiency Sound Absorption & Noise Reduction
Designed for professional acoustic insulation scenarios, the porous fiber structure efficiently absorbs and isolates airborne noise with a noise reduction coefficient NRC ≥0.8. It greatly weakens sound transmission between indoor and outdoor spaces, making it the optimal panel for noise-sensitive facilities such as mechanical equipment rooms and silent production workshops.

Lightweight Structure & Stable Energy-saving Insulation
The lightweight composite structure effectively reduces overall building dead load and foundation pressure. Tested at 25℃ ambient temperature, the core thermal conductivity is controlled within ≤0.043W/(m·K), providing consistent thermal insulation performance and reducing annual air conditioning and heating energy consumption.

Tight Sealing & Reliable Waterproof Performance
The precision tongue-and-groove interlocking structure, matched with professional hidden-fastener roofing installation technology, ensures zero gap joint closure. It eliminates air penetration and water seepage, maintaining stable waterproof and weatherproof performance for long-term outdoor exposure.

Superior Weather & Corrosion Resistance
Premium color steel coating system resists chemical corrosion, ultraviolet radiation and material ageing. Adaptable to industrial corrosive environments and open-air outdoor conditions, the panel achieves a service life of 15–30 years under standard operating scenarios.

Full Prefabrication & High Construction Efficiency
All panels are fully prefabricated and integrally formed in the factory, supporting direct on-site assembly. It eliminates traditional plastering, brickwork and secondary thermal & waterproof treatment procedures, greatly simplifying construction workflow and shortening project cycle by over 50%.

4. Standard Specifications & Technical Data

Execution Standards: GB/T 23932, GB 8624
Qualification Documents: Full fire resistance, thermal insulation and acoustic test reports available
Available Thickness: 50mm, 75mm, 100mm, 150mm, 200mm
Standard Effective Width: 950mm, 1150mm
Steel Sheet Thickness: 0.25mm–0.6mm (fully customizable)
Substrate & Coating Option: DC51D / S250GD galvanized & aluzinc substrate; PE / HDP / PVDF weather-resistant coating optional
Custom Length: Maximum standard length 12m; oversized lengths available with special transportation arrangement
Profile Type: Flat wall panel, corrugated roof panel, hidden-fastener roof panel
Uniform Load Capacity: ≥1.5kN/㎡ (performance varies by panel thickness and span)
Thermal Conductivity: ≤0.043W/(m·K) @25℃
Glass Wool Core Density: ≥64kg/m³
Acoustic Performance: Weighted sound reduction index Rw ≥30dB (100mm thickness, ISO 717-1 & GB/T 19889); Noise Reduction Coefficient NRC ≥0.8 (ASTM C423)
Fire Rating: GB 8624 Class A Non-combustible (smokeless, non-toxic)

5. Application Scenarios

Industrial Noise Reduction Projects: Wall and ceiling enclosure for mechanical equipment rooms, silent workshops and high-noise industrial plants.

Large-span Steel Structure Buildings: Professional wall and roof enclosure systems for industrial factories and logistics warehouses.

Public & Commercial Buildings: Soundproof wall and ceiling panels for office buildings, stadiums and shopping malls.

Fire Partition Engineering: Fire compartment walls, fire passage enclosures and building fire isolation partitions.

Temporary & Constant-temperature Projects: Prefabricated site buildings, agricultural insulation sheds and conventional constant-temperature enclosure structures.

Outdoor Noise Barrier Projects: Highway sound insulation walls and factory outdoor noise isolation enclosures.

6. Standard Installation Method

The panel adopts standardized tongue-and-groove male-female interlocking assembly with complete matching accessories, realizing one-step forming without secondary on-site treatment.

Wall Panel Installation: After tight tongue-and-groove jointing, fix panels on steel purlins with anti-corrosion galvanized or stainless steel self-tapping screws at a maximum spacing of 300mm. Laser level calibration ensures vertical, flat and firm wall installation.

Roof Panel Installation: Adopt hidden-fastener roofing system with concealed fixing under panel ribs to achieve screw-free exterior surface. Matching sealing strips and weatherproof sealant are applied at all overlapping joints for dual waterproof protection and neat overall appearance.

Detailed Auxiliary Processing: Custom supporting edge trims are installed for eaves, ridges, gables and internal & external corners to guarantee integrated airtightness, watertightness, thermal insulation and acoustic performance.

Cutting & Anti-corrosion Protection: Adopt fine-tooth saw or plasma precision cutting to avoid core fiber damage. All cut sections are coated with epoxy zinc-rich primer for anti-rust treatment to extend overall panel service life.

Construction Notice: Glass wool fibers may float during cutting and installation. Standard personal protective equipment is required to ensure safe construction operation.

7. FAQ

Q1: What is the fire rating of this glass wool sandwich panel?

A1: It complies with GB 8624 Class A non-combustible standard. It generates no smoke or toxic fumes and effectively blocks flame spread, ideal for fire partition and high fire-risk projects.

Q2: How is its sound insulation performance?

A2: It features NRC ≥0.8 and Rw ≥30dB for 100mm thickness. Great for equipment rooms, noisy workshops and outdoor noise barrier projects.

Q3: Can sizes and steel sheet materials be customized?

A3: Yes. We offer multiple standard thicknesses and widths. Custom lengths, steel substrates and surface coatings are all available to fit diverse project demands.

8. Product Summary

Color Steel Glass Wool Sandwich Panel is a high-performance prefabricated building envelope material compliant with GB/T 23932 and GB 8624 national standards. Equipped with ≥64kg/m³ high-density Class A non-combustible glass wool core, it integrates outstanding fire safety, superior sound absorption (Rw≥30dB, NRC≥0.8) and stable thermal insulation performance (thermal conductivity ≤0.043W/(m·K)). Featuring lightweight structure, excellent weather and corrosion resistance, plus fast prefabricated assembly, this panel is widely applicable for steel structure enclosure, building fire partition and indoor & outdoor noise reduction engineering projects.