50mm exterior thermal rockwool wall sandwich panel
It's one classic sandwich panel type in steel structure industry.A1 level fireproof performance.MOQ:500M²/Color & Size
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CustomizedRockwool sandwich panels for wall and roof

The Rockwool Sandwich Panels production process adopts the colored steel plate as surface board and the core material is the self-extinguishing closed-cell rock wool, it is a kind of high–strength composited building material, and it was formed in the automated continuous molding machine, by combining the pressed colored steel with high strength adhesives. Rockwool sandwich panels have excellent fire performance because the color steel plate and rock wool materials are fireproof best.
Rock wool sandwich panels are divided into wall panel systems and roof panel systems.
Wall Panel System
Rockwool Wall Sandwich Panel with sealing side is recombined into a beautiful, flat, and tough building board by choosing two layers of high-quality color coated steel sheets or other precisely profiled metal sheets as its faceplates, rotating the stripped Rockwool 90 degrees after roll forming(make the fibers vertical to the upper and lower steel sheets )and strongly binding high-quality Rockwool with the metal faceplates using high-strength, high adhesion,high-fire-prevention binder. Excellent fire prevention, thermal insulation, environment protection, and other characteristics of the formed boards provide the best choice for industrial building envelope systems.
Rockwool Sandwich Panel Features
1. Easy installation and can be used many times over.
2. Lightweight and save cost.
3. Extensive Applications: House, Warehouse, Workshop, stadiums, villa, Shed, Container, etc.
4. Environmental protection, stable structure, fireproof, waterproof, durable, and energy conserving.
Wall Panel Install

Wall Panel Application
Roof Panel Systems
The unique fire-proof polyurethane/ PIR side sealing technology improves the airtightness and water tightness of the lap joint, effectively preventing the occurrence of the cold bridge phenomenon. At the same time, the occurrence of peeling of the steel plate and the core material at the lap joint during the handling of the sheet is avoided.
Roof Panel Install
What is sandwich panel?
Sandwich panel is any structure made of three layers: a low-density core and a thin skin layer (aluminum sheet) bonded to each side.
1. Our rock wool sandwich panel has the following characteristics: light dead weight, high mechanical strength, excellent shearing resistant performance, strong corrosion resistance, high durability, etc.
2. The sandwich panel has excellent insulating performance: heat insulation, sound insulation, etc.
3. It is easy to install and can be used many times over.
4. Nowadays, the rock wool sandwich panel is widely used for cleaning workshops, industrial factory buildings, office buildings, stadiums, villas, and public buildings, prefabricated houses, etc.
Why Choose Yumisteel?
Yumisteel sandwich composite panels offer excellent insulation, heat resistance, high strength, and aesthetic appeal. They are fire-proof, flame-retardant, and easy to assemble, making them ideal for building envelopes and insulation cladding walls across various construction projects.
Our in-house production line for rock wool composite panels is equipped with a 6m bending machine, 6m shearing machine, drilling machine, blast cleaning equipment, and a full CNC system with automatic cutting, assembly, welding, and straightening functions,eliminating manual operation errors.
With strong technical expertise and efficient scale production, Yumisteel has established itself as a premier steel structure and wall panel fabrication and installation provider.
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Alina_Yuki
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