FM rock wool core PIR rail roof

It is a new type fire proof rock wool panel.

• Rock wool core PIR rail roof panel is a new type fireproof rock wool sandwich panel, which is recombined into a beautiful, flat, and tough building panel by choosing two layers of high-quality color coated steel sheets or other precisely profiled metal sheets as its face steel sheet, rotating the stripped rock wool 90 degrees after roll forming (make the fibers vertical to the upper and lower steel sheets) and strongly binding high-quality rock wool with the metal face steel sheet using high-strength, high-adhesion, high-fire-prevention binder. Excellent fire-prevention, thermal insulation, environment protection and other characteristics of the formed boards provide a best choice for industrial building envelope system.

• The application of exclusive fireproof PUR/PIR side sealing technology increases the air-tightness and watertightness in lap-joints, thus preventing the cold  bridge from happening, and at the same time, the  seperation of steel sheets from core materials is  avoided while transportation and installation.

• The joint could be with or without PUR/PIR rail

High-quality prepainted steel sheets

● Usually we would recommend our customers the coating, zinc content, and base plate which match with the usage  and service life of buildings.

● Color-coated steel sheet are products that using hot dipped galvanizing or galvalume steel plate as substrate after  surface degreasing, parkerizing and chromating, baked with organic coatings. 

●  The commonly used coating materials for color-coated steel sheets are PE, SMP, HDP, PVDF etc. 

● Color-coated steel sheet can be classified as general usage and structural usage steels. The specific grades are TDC51D, TDC52D, TS280GD, TS330GD, TS350GD, TS550GD. 

● The coating structures usually is twice-baking-after twice-painting coat, with the coating thickness of over 20μm for  the outside sheet, and 5-12μm at the back side. The current operative standards of the color-coated steel sheet  include: Chinese GB/T 12754-2006, America ASTM A755 (galvanized), ASTM A792 (galvalume), Japan JIS G3322,  Europe EN/10169, and South Korea KS D3506.

We will pay special attention to the following performance of prepainted steel sheets

● The type and the thickness of coating

● The hardness and glossiness of pencil 

● T-bending test and impact test 

● Mechanical property（yield stength,tensile   strength,elongation） 

● Anti-corrosion（salt fog）property

● Anti-fading and anti-pulverability property 

● Anti-dust property

Classification of top coat of color-coated steel sheet

Ral color

What's the features of our new model fireproof rock wool sandwich panel ?

Taking high-quality natural rocks such as basalt, gabbro and others as main materials, the core material of our new type fireproof rock wool sandwich panel is a kind of artificial inorganic fiber after the process of high temperature melting and fiberization with the characteristics of very low slag and dust content and non-absorbent. It is "real rockwool"!

Comparison picture of hydrophobicity test

The test shows that our new type rockwool sandwich panel possesses higher hydrophobicity comparing with conventional rock wool sandwich panel.

Advantages of the new type rock wool

   ● The type and the thickness of coating

   ● The hardness and glossiness of pencil 

   ● T-bending test and impact test 

   ● Mechanical property（yield stength,tensile   strength,elongation） 

   ● Anti-corrosion（salt fog）property

   ● Anti-fading and anti-pulverability property 

   ● Anti-dust property

Disadvantages of conventional mineral wool/slag wool:

• Due to its high dust content and low acidity coefficient,it has a strong corrosive effect on metals.
  

• Its high hygroscopicity can lead to a sharp decline in thermal insulation performance, thus cold bridge phenomenon is easy to happen.

Core material index of new model fireproof rock wool sandwich panel

Technical specification of new type fireproof rock wool sandwich panel

• the values in the following table is calculated on the basis of rockwool bulk weight of 120kg/m3 , 0.6mm outer steel  sheet and 0.5mm inner steel sheet.)

• Allowable vertical load and thermal conductivity of the new type fireproof rockwool sandwich roof panel (allowable deflection f ≤ L/240)

New model fireproof rock wool panel production line

● The equipment which produce rock wool sandwich panel is a fully automated production line of the world's advanced Italian machinery manufacturer PUMA and German Krauss Maffei, with a total length of nearly 200 meters.

● To further improve the panel's performance, such as metal skins' peel strength, no cold bridge and no dewing, 50mm PU/PIR edge sealing is added to both sides in the production process. 

● The application of double crawler machine changes the traditional production process in which rolls keep a linear contact with steel sheets. By this way, rolls keep a plane contact with steel sheets, run synchronously with sandwich panels and solidify completely in double crawlers, thus the flatness of sandwich panels and the bonding stability between core materials and steel sheets are ensured.

Production procedure

Advantages of the new type fireproof rockwool sandwich panel

●  After a 90°rotation, the core material is vertical to the steel sheet, thus the panel's compressive strength increased by 100%.

●  The vertical distribution and cross butting of core materials prevent the butting gap among core materials from existing, improve the strength while ensuring the flatness of the board surface.

●  The imported high-efficiency binder with excellent fireproof  performance is used on new products, and the new  product binder is coated onto the steel sheet through the  spraying way with a dosage up to 600g/m2 . The even and  reliable bond makes the bonding rate nearly reach 100%.

Installation