XC Prefab House－Professinal Prefabricated Container Houses and Insulation Sandwich Panels Manufacturer Over 11 Years.
Xincheng 75mm Rock Wool Sandwich Panel - A1 Fireproof Wall & Roof Building Panel
Product advantages:
1) Heat insulation
2) Durable-more than 30 years
3) Good quality- ISO 9001:2000
4) Waterproof and fireproof
5) Light weight
6) Cost-saving-the lowest price of sanwich panel
7) Environment protection- highly recommend by the government
8) Large span and most area saving
Product Description
Definition of Rock Wool sandwich panels:
1. Energy saving and fire prevention: class A fire prevention, with high-efficiency insulation performance simultaneously.
2. Airtight and sound insulation: High-density core material ensures outstanding airtightness and exceptional sound insulation.
3. Waterproof and antirust: Boasting a hydrophobic rate of ≥98%, our panels provide superior lap moistureproof and antirust capabilities.
4. Strong and durable: Designed with a high-strength board surface and wave shape for extraordinary durability and robustness.
5. Economical and beautiful: Experience minimal material loss, making our panels more cost-effective and aesthetically pleasing compared to traditional roofing materials.
6. Convenient construction: Featuring a unique detachable lap way for effortless and convenient installation.
75mm Rock Wool Core Sandwich Panels deliver unmatched fire resistance, thermal efficiency, and structural integrity for industrial, commercial, and cold storage applications. Engineered with non-combustible mineral wool core and premium steel facings, these panels meet the most stringent global safety standards (EN 13501-1 Class A1, ASTM E84 Class A), making them the preferred choice for architects, contractors, and facility managers prioritizing life safety and building performance.
Uncompromising Fire Protection
A1 Fire Rating (Non-Combustible):
Unlike flammable PU/PIR or EPS cores, our 75mm rock wool sandwich panels feature dense mineral wool (120kg/m³ density) that withstands temperatures exceeding 1,000°C. They emit zero toxic smoke, prevent flame spread, and maintain structural stability during fires – critical for:
Warehouses & Factories
Chemical Plants
Hospitals & Schools
High-Rise Buildings
Fire Separation Walls
MATERIAL iNTRODUCTION
Suface sheet
Usually the surface sheet of Rock Wool sandwich panels is PPGI or PPGL steel color coated sheets.PPGI is prepainted galvanized coated steel and PPGL is prepainted Al-Zn coated steel.For coating type,you could choose PE, PVDF, HDP, SMP,ect.Our strategic cooperation brands are Bluescope, Bao-steel, Shougang steel, Guanzhou steel, Yieh Phui steel,Xinyu steel,etc.
Superior Thermal & Acoustic Performance
Optimized Insulation (λ=0.034 W/mK):
The 75mm rock wool core provides exceptional thermal efficiency:
U-v
alue: 0.48 W/m²K (70% lower than concrete)
Eliminates thermal bridging & condensation
Reduces HVAC costs by up to 40%
Noise Reduction (Rw 45dB):
Ideal for noisy environments like manufacturing plants or urban buildings
Wall panels
PU sealing rock wool sandwich panels
Tongue & groove joint wall panels for cold room or steel buildings:
|
Effective width |
950mm, 1150mm |
|
Panel thickness |
50,75,100, 150, 200 mm |
|
Surface sheets |
PPGI/ PPGL/ Aluminum sheets/ Al-Mg-Mn alloy metal sheets/ Stainless steel/ Aluminum foils/ PVC sheet |
|
Steel thickness |
0.326 - 0.5 mm |
|
Aluminum sheets/ Al-Mg-Mn alloy metal sheets |
0.326 - 0.5mm |
|
Stainless steel |
0.40 - 0.80 mm |
|
Regular panel color |
White grey, Sea blue, Sliver grey, Dk grey, Iron grey |
|
Coating type choice |
PE/ PVDF/ HDP/ SMP, etc. |
|
Available length |
20FT container: ≤ 5.95m |
Panel ribs for your choices
There are 4 types of panel surface profiled for your choices.Flat type, Ripplet, Orange peel pattern, Wide ribs.
Product Application
It is suitable for the various roofs and walls referring to the large-size factory buildings, storages, exhibition halls, gymnasiums, freezing stores, purifications workshops, etc, which features temp-keeping, heat insulation, weight-bearing, weatherproof with the rich colorfulness and good appearance.
Our packing & loading pic
Seaworthy packing standards:
PVC on both sides to protect the roof panel surfaces;
Packed with kraft paper to protect the panel ends;
Put EPS foam on the each space to keep the panels from squeezing each other.
If you have special requirement,please feel free to discuss with us.This is to make us improved,and protect your goods well.
faq
Q: Can these panels be used for load-bearing walls?
A: Yes, when designed per EN 14509 structural requirements.
Q: How do they compare to PIR panels?
A: Rock wool offers superior fire safety (A1 vs B/C) but slightly lower insulation (λ 0.034 vs 0.023 W/mK).
Q: Are custom colors available?
A: Yes – RAL, Pantone, or custom color matching.
XC specializes in innovative modular housing solutions including XC Transformable Villa, Capsule House, Apple Cabins, Container Houses, and Insulation Sandwich Panels.
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