| 摘要 |
The present invention provides coating material (14), insulation-containing building material products bearing the material and methods for applying the coatings to the building material products. The coating matarials (14) possess one-way breathability characteristics with respect to water and aqueous solutions. That is, the coatings are essentially impermeable to liquid water and permeable to water vapor. Vapor from water in insulation coated by the material may thus pass through the coating, whereas liquid water is effectively prevented from passing through the coating and entering the insulation. |
