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How to Choose a Insulated Sandwich Panel ?

MAY. 23, 2020

The insulated sandwich panel is mostly used in prefab house which has the advantages of light weight, high strength, heat preservation and insulation, beautiful and economic use, etc. The insulation sandwich panel is also widely used in the roof and wall for clean room, cold storage, shop, kiosk, large-span workshop, warehouse, office building, villa and so on.


Insulated sandwich panel has three advantages


  • Thermal insulation: popular thermal insulation sandwich panel is rock wool, glass fiber cotton, polystyrene, polyurethane, etc., they have low thermal conductivity with good heat insulation performance. 

  • Easy installation: the insulated sandwich panel is easy to install for modular room, as it can be cut at will on site, and fire-resistant sandwich panel can completely satisfy the fire standard requirement of the modular house.

  • Durable: The shelf life of insulated sandwich panel treated by special coating is 10 to 15 years, the service life of the sandwich panel can reach more than 35 years by sprayed anti-corrosion coating in every 10 years after put into use. Available colors of sandwich panel make the rooms beautiful and colorful.​

Specification and performance of insulated sandwich panel:


1. The insulated sandwich panel often adopts the slotted plug-in type, which has the advantages of convenient installation, time-saving, material saving, good flatness, high strength, etc. it is suitable for ceiling and partition system.


2. Regular Panel Thickness (mm): 50-250;


3. Sandwich Panel Length (mm): due to continuous production, sandwich panel length can be determined according to user needs:

4. Width (mm): 950/1150 /1180


5. Properties of core material:


  •  bulk density of polystyrene: 8-20kg / m3, thermal conductivity : s0.036w/m.k, maximum service temperature: about 100oC

  • Bulk density of rock wool: 60-120kg / m3, thermal conductivity: s0.043w/m.k, maximum service temperature: about 500oC, incombustibility: Class A. The core material of rock wool sandwich panel is made of basalt and other natural ores as the main raw materials, which are fused into fiber keys by high temperature fan, added with a proper amount of binder.  Rock wool is suitable for heat insulation and sound insulation of industrial buildings, ceiling and partition of clean room.

  • The bond strength of PU sandwich panel shall be more than 0.09MPa, and the combustion performance of the sandwich panel shall reach level B1. When the deflection of the bending bearing force is Lo/200 (Lo is the distance between the supports), the bearing force of the sandwich panel shall not be less than 0.5Kn/m2.


950mm corrugated roof sandwich panel is three times stronger than ordinary flat wall sandwich panel. It is connected with roof truss by hidden self-drilling screws which does not damage the exposed part of color steel,to prolong the service life of roof sandwich panel. The connection between roof panels is by buckle cap type, which is convenient for construction and improves efficiency, but the biggest advantage is not easy to seep water.


The sandwich panel has beautiful appearance, bright color and good overall effect. It integrates features of load-bearing, heat preservation, fire prevention and water-proof, and does not need secondary decoration. It is installed quickly and conveniently in short construction period, it's a kind of efficient environmental protection building material with wide application and great potential.

sandwich panel
container house
prefab house
clean room door
clean room window
alum. profile


Blue Room


Hospital Waiting Room


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