Mold resistant construction boards and methods for their manufacture

Inactive Publication Date: 2007-12-27
BFS DIVERSIFIED PRODS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has been alleged that the presence of moisture around a surface may at times foster the growth of mold or other types of fungi or mildew.

Method used

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  • Mold resistant construction boards and methods for their manufacture
  • Mold resistant construction boards and methods for their manufacture

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Embodiment Construction

[0010] The foam construction boards of this invention include at least one facer that includes at least one mold-inhibiting agent. In one embodiment, as shown in FIG. 1, the construction board 10 includes a foam core or layer 12, first facer 14, and an optional second facer 16. In one or more embodiments, foam core 12 includes a first and second opposite horizontal or major surfaces, and first facer 14 is directly adjacent to a first major surface, and optional second facer 16 is directly adjacent to second major surface. Either first facer 14 or both first facer 14 and second facer 16 include at least one mold-inhibiting agent.

[0011] The foam core of layer 12 is preferably a closed-cell rigid foam structure. The cellular structure of the foam can include any thermoplastic or thermoset material that is capable of being foamed. In certain embodiments, these cells include an insulating material such as an insulating gas.

[0012] One embodiment of the closed-cell rigid cellular structu...

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Abstract

A construction board comprising i) a foam layer, and ii) a first facer, where the first facer includes at least one mold-inhibiting agent.

Description

[0001] This application is a continuation application of U.S. Ser. No. 11 / 177,784, filed Jul. 8, 2005, which claims the benefit of U.S. Provisional Application No. 60 / 586,424, filed Jul. 8, 2004, which is incorporated herein by reference.FIELD OF THE INVENTION [0002] This invention relates to insulation construction boards, such as polyisocyanurate foam boards that include mold resistant facers. BACKGROUND OF THE INVENTION [0003] In fiat or low-slope roofing applications, insulation boards are typically adhered directly to a roof deck, which is most commonly constructed of concrete or steel. These insulation boards are typically closed-cell foams that include polyurethane or polyisocyanurate cellular materials with an insulating gas trapped within the cells. The insulation boards are then covered with a weather resistant membrane. [0004] The insulation boards typically also include at least one facer material. The facer generally serves various functions; one, it acts as a carrier f...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): D21H21/36D21H21/56D04H1/10E04B1/80E04C2/24
CPCB32B5/08E04C2/296B32B5/24B32B5/245B32B2250/03B32B2250/40B32B2260/021B32B2260/048B32B2262/062B32B2262/101B32B2264/102B32B2266/0278B32B2266/08B32B2305/022B32B2307/304B32B2307/7145B32B2419/00D21H13/40D21H19/24D21H21/36D21H21/56E04B1/80E04C2/246B32B5/18Y10T428/249976Y10T428/249962Y10T442/647Y10T442/697Y10T428/249987Y10T442/2525Y10T442/651Y10T442/2533
Inventor GRASS, DAVID E.LETTS, JOHN B.LAUGHLIN, WAYNE E.
Owner BFS DIVERSIFIED PRODS
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