1. The external wall insulation system of the special fire isolation belt for rock wool board should be reliably connected with the base wall, and it should be able to adapt to the normal deformation of the base without cracks or hollowing, and it should be able to withstand the long-term repeated effects of self-weight, wind load and outdoor climate for a long time. Without causing harmful deformation and damage, it should have waterproof and permeable properties.

2. The external wall insulation system of the special fire insulation belt for rock wool board shall have the ability to prevent the spread of fire, and the fire performance test results of the external wall insulation system shall be used as the basic basis for judging whether the fire insulation belt is effective.

3. The construction technology of the outer wall external insulation system of the special fire isolation belt for rock wool board shall include the construction technology of the fire isolation belt, and the same materials and processes as the construction technical plan shall be used to make the fire isolation belt sample pieces before construction.

4. The special fire isolation belt for rock wool board shall have certain thermal insulation performance, and the thermal resistance of the fire isolation belt shall not be less than 40% of the thermal resistance of the external wall insulation system.

5. The combustion performance level of the core material of the external wall external insulation system should be no less than B2, and the oxygen index should be no less than 26%; the combustion performance level of the core material of the insulation material of the fire isolation belt should be A level.

6. The special fire isolation belt for rock wool board should be installed on-site using factory prefabricated products. Under the conditions of correct use and normal maintenance, the fire isolation belt should meet the service life requirements of the external wall insulation system.