Why is a layer of flame-retardant rosin applied to the surface when laying insulation material?

2009-12-03View Original

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Why is a layer of flame-retardant rosin applied to the surface when laying insulation material?

Reply #22009-12-15

This post was last edited by Great Wall Ten Thousand Miles on 2009-12-15 at 10:36. It is a type of moisture barrier whose main function is to prevent rainwater and water vapor in the air from entering the insulation layer. Rainwater and water vapor in the air can cause the thermal conductivity of the insulation layer to increase sharply, leading to softening and deterioration of the insulating material, disruption of the integrity of the insulation structure, and increased heat loss. Therefore, rigid binding materials such as wire or steel strips shall not be used for the moisture barrier.

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