Semipermeable coating for building materials
OwnerJohn O Ruid, Murray Toas +1inventors
InventorsJohn O Ruid, Murray Toas, Wayne E Shaw
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Abstract
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.
Claims38
A building product comprising:
- a base mat;
- and
- a coating carried by said base mat, said coating being present at a level whereby said coating is essentially impermeable to liquid water and permeable to water vapor.
A method of making a building product comprising:
- providing a base mat;
- and
- applying a coating to said base mat at a level whereby said coating is essentially impermeable to liquid water and permeable to water vapor.
Dependencies are inferred from the claim text.