Roof sandwich panels 120 mm with mineral wool insulation DoorHan with lock R/2, R/3

Available for pre-order
Please note that we cannot fulfill orders in small quantities as it is exported from Europe, Minimum order quantity: 1 x 40 ft container. Terms of delivery: FCA .Leave a request and we will calculate the price in accordance with your requirements.
The area of one panel is  ( m2) 12 
Total panel area  (m2)   432 
Thickness (mm) 120
Width (mm)  1150
Length (mm) from 2000 to 11900 mm
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The area of one panel is  ( m2) 12 
Total panel area  (m2)   432 
Thickness (mm) 120
Width (mm)  1150
Length (mm) from 2000 to 11900 mm
Quantity in packing, piece  9

Loading rates for a container

The internal volume of a 40-foot container is 67.3-67.8 m3.
The maximum carrying capacity is 24.8-26.8 tons.
The weight of a 40-foot container without cargo is 3,640-4,000 kg.

PIR – inner core is an advanced thermoset polyisocyanurate (PIR) foam which is sandwiched between two layers of embossed aluminium foil facings.Sandwich panels are made of hot-dip galvanized sheet steel, which is manufactured using cold-rolled steel. Building materials are made from steel with a thickness of 0.45 to 0.7 mm - the type of polymer coating may differ. Dorkhan mineral wool slabs, obtained on the basis of basalt rocks, act as the core. The connecting element between the core itself and the metal used for cladding is a two-component polyurethane adhesive.

Weight of zinc coating, g/m² 275

Panel facing metal thickness, mm 0.5

Mineral wool density, kg/m³ 130

Thermal conductivity coefficient, W/(m K) 0.042-0.043

All colors from the RAL chart are available.

Dimensions (custom sizes available):

Indicator name Unit rev. Value
Thickness mm 20; thirty; 40; 50; 60; 70; 80; 85; 90; 100
Length x width, with “L” -edge ** mm 2385×1185, 1185×1185, 1185×585
Length x width, without “L” -edge mm 2400х1200, 1200х1200, 1200х600

Basic physical and mechanical characteristics:

Indicator name Unit rev. F / F CXM / CXM
Thermal conductivity, no more, at:

(25 ± 5) 0 С

operating conditions A

operating conditions B

W / (m * K) 0.021






Compressive strength at 10% linear deformation, not less kPa 120
Water absorption by volume during long immersion

(28 days), no more

% 1.0
Operating temperature o C from – 65 to + 110
Flammability group D1 G4

PIR-based heat-insulating material belongs to a special class of thermosetting polymers with a gas-filled closed cell structure containing a permanent inert gas responsible for reduced thermal conductivity. One of the features of PIR is its specific chemical structure, which is characterized by a combination of a rigid ring molecular structure and strong high-density chemical bonds. These features provide increased thermal resistance of the insulation, as well as resistance to fire. The carbonizing substance on the surface of the material when exposed to flame leads to the formation of a “porous” protective carbon matrix, which prevents further thermal decomposition of the inner layers of the polymer, contributing to the preservation of the integrity of the building structure with PIR. Thermal insulation boards PIR have a long service life, due to the fact that they have minimal water absorption, are not subject to the destructive effects of aggressive media, as well as decay, incl. in high humidity conditions. PIR boards have straight or molded ends in the form of an “L” -edge to improve the joining of the material to each other and create a continuous thermal insulation loop without cold bridges.

Advantage of PIR plates:

  • Not flammable. The limit value is EI 150, so the sandwich panels remain intact in the event of a fire and block the spread of flame. Due to this, products are used in the installation of fire partitions.
  • High performance. These include compressive and tensile strength, as well as resistance to deformation processes. Such properties are ensured by the use of modern technologies and high-quality materials.
  • Rigidity that allows the use of sandwich panels on floors
  • Simple installation. It can be installed without heavy equipment, using conventional winches
  • Fasteners for self-tapping screws and mounting foam.
  • Foam thickness of 115 mm annually saves 162 kWh per 1 sq m

Application of PIR insulation on a metal basis. Interior finishing with drywall or directly on the metal. Packing of sandwich panels is carried out in transport packages packed with stretch film with foam sheets.

Application area: Heat-insulating PIRs are used in civil and industrial construction when installing flat roof systems on metal and concrete bases with adhesive or mechanical fastening. Also, PIR thermal insulation boards can be used to insulate floors (including loaded ones) and facades.

Thickness, mm
Width, mm
Length, mm
from 2000 to 11900 mm
Pack quantity, pcs.
Warranty, years
Installation method
direct mounting
mineral wool DoorHan
Leave a request and we will calculate according to your requirements
Moisture resistance

Delivery is available on weekdays from 9:00 AM to 5:00 PM. Please get in touch for pricing.  

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