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Inferior phenolic board insulation layer falls off

by:Ventech     2020-12-18
Some phenolic board insulation quality is unqualified, the intermittent method used is not suitable for the external walls phenolic foam board. The scene of the phenolic insulation board is the intermittent method commonly known as a great bubble mode of production, low bulk density and table flour serious, combine with adhesive bonding mortar, the effect is very poor. This is one of the main cause of the insulation board fall off.

construction bonding area is not enough. About phenolic insulation system construction technology requirements, bonding area should be greater than 60%. Fall off from the scene of the insulation board, bonding area is far from requirement, which is one of the main cause of the insulating layer falls off. Because of the different production process, the intermittent method producing foamed phenolic board belongs to the freedom, the product of open pore structure, result in insulation board bibulous rate is larger. Through the winter and summer seasons rotate, insulation board, after a lot of water in the winter will be frozen, so as to make the insulation plate cracking, at the same time also can destroy mortar adhesive layer, bonding strength, the serious influence system result in the crack of the insulation system, fall off.
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Hi,this is karen from VENTECH CHINA,SO NICE TO CONTACT WITH YOU,FOR MORE INFORMATION,PLEASE CONTACT MY EMAIL :KAREN@CHINAVENTECH.COM OR INSULATION@CHINAVENTECH.COM. WILL REPLY YOU ASAP.THANKS IN ADVANCE