Gridding cloth special for outside wall heat preservation is made form neuter alkali or non-alkali fiberglass, then alkali-proof coated . its characteristic is high intention . alkali-proof well, its function is to avoid split ,it is important in heat preservation system.for it is good in acid-proof, alkali-proof and high anti-draught ability that can symmetrical dispersing stress that the heat preservation system of putside wall endured, which can avoid distortion of heat preservation structure for some outside impulsive forces, its convenient to control in construct and quality, its function is very important in heat preservation to control in construct and quality , its funcation is very important in heat in heat preservation system.