Advantage:
1, light weight, small thermal conductivity,

good elasticity, non-flammable, chemical

stability.
2, low prices.

Disadvantages:
1. The water absorption rate is high and

the water is easy to accumulate in the

rock wool board, which will increase the

weight of the insulation layer for a long

time, resulting in the insulation layer

falling off and the repair rate being high.
2. The water layer can easily cause the

rot in the bin over a long period of time.

Advantage:
1, light weight, small thermal

conductivity, good elasticity,

non-flammable, chemical stability.
2, muddy water, low water absorption.

Disadvantages:

1, insulation effect is slightly lower

than polyurethane

Advantage:
1, light weight, small thermal

conductivity, good elasticity,

non-flammable, chemical stability.
  2, muddy water, low water

absorption, good insulation effect.
 
Disadvantages:
1. Construction equipment and

raw materials are not conducive

to international transportation.
2, the price is slightly expensive.

Glass wool                                        Water foam board, benzene board                 A\B material foaming

• 1. the top of the warehouse and the warehouse are external spray + color steel plate outer protection, polyurethane
• insulation thickness 60-100mm;
• 2. External protective color steel plate adopts 0.5mm thick Shanghai Baosteel products;
• 3. impermeability ≤ 10mm; water vapor permeability ≤ 6.5mg / (pa.m.s);
• 4. acid and alkali resistance: no change in acid resistance (20% HCL, 24 hours), no change in alkali resistance (45%
• NaOH, 24 hours);
• 5. temperature range: heat resistance 100 °C, cold resistance ≥ -120 °C;
• 6. Insulation material must meet the requirements of fire prevention, and be incinerated or self-extinguished within 3-5
• seconds from the fire;
• 7. Installation of outer guard: adopt pressure-type corrugated board, lining 7 wind-resistant fixed steel rings to prevent
• falling of color steel plate and wind resistance to meet wind load requirements in different regions;
• 8.when the outer shield is installed, the lap is made of stainless steel self-tapping screws, the screw longitudinal spacing is 15cm, the lateral spacing is 12cm, the lateral spacing of the non-color board tying place is 25cm; the lap joint must be compact, flat, and waterproof glue Closed, protective layer should be no irregular deformation and scratches after
• construction;
• 9. Insulation requirements and fire protection grades are designed and installed according to the B2 level of grain, oil
• and food engineering;