Window flashing assembly

a technology for windows and windows, applied in the field of building materials, can solve the problems of uneconomic use of doors and windows, seal failure, etc., and achieve the effects of minimizing material failure or installation error, maximizing sealing performance, and minimizing the number of components required

Inactive Publication Date: 2005-01-20
ACKERMAN DALE S JR +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0013] The present invention is a flashing assembly for sealing around doors or windows. The present system combines integrated components that minimize material failure or installation error that will allow exterior water or air to penetrate the interior building structure. The object of the assembly is to provide an adaptable system that provides for vapor flow under the flashing, provides sealing redundancy and maximizes sealing performance. This current invention minimizes the number of components required in field installation.

Problems solved by technology

While high density foam has strong sealing characteristics without an adhesive, its use in this application is uneconomic.
Field installation of caulk is inconsistent, generally too small in volume, does not adhere to many flashing materials and often does not cure prior to expansion that results in seal failure.

Method used

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Examples

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Embodiment Construction

[0043] The present invention is a window flashing assembly that provides an improved barrier to moisture.

[0044]FIG. 1 demonstrates a cross section of the under flange seal 6 from closed cell foam 1 that is formed at a width approximate to the width of a window nailing flange and is tapered 36 from one side to the other. As is demonstrated in FIG. 4 it is essential that the seal tapers to correspond with the compression strength of the nailing flange to avoid excessive flange deflection. In addition to stressing the flange, contrary to industry and manufacture standards, the flange elevation away from wall sheathing makes installation of trim around the window difficult. Current flashing systems rely on caulk to seal the window to the flashing membrane. Sealing caulks currently in use have a cure time varying from a few days to a few weeks. Testing shows that when these caulks are placed between materials having a low perm rating such as many flashing membranes and a window flange c...

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Abstract

A window or door flashing assembly includes a weather resistive barrier that covers a portion of a wall around a rough opening. The barrier may be comprised of adhesive saturated open cell foam or scrim laminated between layers of impervious film A tapered sealing gasket that engages the inner surface of the door or window nailing flange or molding seals exterior air and moisture from the interior of the building. The barrier may extend into the rough opening and integrate with a sill pan.

Description

CROSS-REFERENCES TO RELATED APPLICATIONS[0001] The present application is a continuation-in-part of prior U.S. patent application Ser. No. 10 / 114,756, filed Apr. 2, 2002, which is a continuation-in-part of U.S. patent application Ser. No. 09 / 567,866, filed May 9, 2000 now U.S. Pat. No. 6,305,130, the benefit of the filing dates being claimed under 35 U.S.C. § 120.FIELD OF THE INVENTION [0002] The present invention relates to building materials in general, and in particular, to seals, flashing, sill pans and flashing membrane for doors and windows. BACKGROUND OF THE INVENTION [0003] One of the most common failure points where water enters a building's envelope is around windows and doors. Water penetration is one of the most significant factors leading to premature failure of structures. Many windows and doors, whether they are aluminum or vinyl, are secured in the building's rough opening by a continuous nailing flange. As an example, the window is placed in the rough opening from t...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): E06B1/62
CPCE06B2001/628E06B1/62
Inventor ACKERMAN, DALE S. JR.ACKERMAN, KATARZYNA M.
Owner ACKERMAN DALE S JR
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