Fibrous building elements
OwnerHans Hjalmar Gustafsoninventor
Life of this patent
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Abstract
A fibrous building element such as a panel which can be used for roofs, soffits and walls. The fibrous element is coated on the side which will be positioned on the exterior of a building structure with a material which forms a crackled surface. The crackled surface permits water vapor or steam from the interior of the structure to pass through the panel. The crackled surface presents a surface-active hydrophobic agent to prevent rain, snow and moisture from penetrating the panel. The surface-active hydrophobic agent may be applied to the outer face of the crackled surface coating or may be mixed in the crackled surface coating.
Claims3
A fibrous building element which is coated on at least the outwardly facing side thereof with a layer of a water-base paint which forms a cracked surface in a manner to permit vapor to diffuse through said building element and a second layer of a wax emulsion applied to the outer surface of said water-base paint to prevent the penetration of water into the building element through the cracked surface thereof.
Dependencies are inferred from the claim text.