Fireproof Cloth functions and standards

Fireproof Cloth is a reinforcing material for the exterior wall insulation surface layer. Its main function is to improve the mechanical strength of the surface layer, ensure the resistance continuity of the facing layer, disperse the shrinkage pressure and insulation stress of the surface layer, avoid stress concentration, and resist natural temperature. , surface cracking caused by humidity changes and accidental impact. Therefore, Fireproof cloth plays an important role in the external insulation system, so the selection of good fiberglass Fireproof Cloth is also an important part of ensuring the overall quality of the external insulation system.

The current national technical standards for external wall insulation: the alkali-resistant tensile breaking strength of the fiberglass Industrial Textiles in the warp and weft directions shall not be less than /, the alkali-resistant tensile breaking strength retention rate shall not be less than 50%, and the weight per square meter shall be ≥ grams. The alkali-resistant tensile breaking strength of the Glass Fiber Industrial Textiles in both the warp and weft directions shall not be less than that, the alkali-resistant tensile breaking strength retention rate shall not be less than 90%, and the weight per square meter shall be ≥ grams.
At present, the Fireproof Cloth used in the external wall insulation system on the Chinese market weighs about 10% per square meter, and its strength is generally low. Its normal fracture strength is only /5cm, or even lower. To this end: the technical indicators of Fireproof Cloth for exterior wall insulation projects are required to be standardized, and the purchased Fireproof Cloth must be confirmed before use.
When controlling cracks in external wall insulation, not only the insulation layer material is required to have a certain tensile strength and ultimate stretch, but the crack-resistant protective layer material is also required to have sufficient tensile strength. For this reason, when choosing Fireproof Cloth, it is necessary to pay attention to whether the tensile strength of the Fireproof Cloth itself meets the standards.