| Self-adhered flange for use with non-flanged windows -> Monitor Keywords |
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Self-adhered flange for use with non-flanged windowsSelf-adhered flange for use with non-flanged windows description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20070175107, Self-adhered flange for use with non-flanged windows. Brief Patent Description - Full Patent Description - Patent Application Claims
CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application is a continuation-in-part of U.S. Ser. No. 11/011,669, filed on Dec., 14, 2004. BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] This invention is directed to materials and methods for sealing windows and other fenestration products from moisture intrusion. [0004] 2. Description of Related Art [0005] Flanges or nailing fins on windows, doors and other fenestration products, in which the flange is integral to and continuous with the window frame, provide a surface that is fully connected to the window for adhesive flashing materials to adhere to, enabling the flashing product to create a continuous watertight seal at the window-wall interface in structures, such as buildings. However, flanges are not present in all windows or fenestration products (hereinafter referred to as "windows"). Non-flanged windows and windows with brickmold frames (hereinafter referred to as "brickmold windows") are prone to moisture intrusion, due to difficulty in achieving a continuous flashing integration between the window and the wall. Thus, the typical installation method for these types of windows involves a bead of building sealant between the fenestration product and the wall, which is not a durable, continuously integrated moisture seal and is prone to failure after environmental exposure. This results in a higher tendency for moisture damage to the window and the surrounding wall, including rot and mold growth. No known methods exist to install non-flanged and brickmold windows in a way that effectively seals the window-wall interface with a continuous integration of self-adhered flashing to prevent moisture intrusion. It would be desirable to have a product and window installation method, which would integrate the window-wall interface in window systems using windows without flanges. [0006] In addition, applied rigid flanges, which may or may not be integral to the window can be problematic in sealing the window-wall interface due to bending or cracking of the flange, or poor joint sealing. It would be desirable to have a product and window installation method that would obviate the need for rigid flanges. SUMMARY OF THE INVENTION [0007] This invention is a self-adhering flange material for sealing interfaces between fenestration products and walls, comprising at least one top coversheet and at least one bottom coversheet with a pressure-sensitive adhesive layer sandwiched between the two coversheets, wherein the coversheets occupy an appreciable width of the flange but do not extend across the entire width of the flange and thereby are offset with respect to each other thereby providing opposing first and second exposed surfaces of the pressures sensitive adhesive layer. [0008] In another embodiment, the invention relates to a self-adhering flange material comprising: [0009] an elongated nonporous flexible sheet having top and bottom major surfaces and a first edge and a second edge defining a width therebetween; [0010] a top pressure-sensitive adhesive layer adhered to the top surface of the flexible sheet along the first edge over a portion of the width of the flexible sheet; and [0011] a bottom pressure-sensitive adhesive layer adhered to the bottom surface of the flexible sheet along the second edge over a portion of the width of the flexible sheet. [0012] This invention also encompasses various methods for installing fenestration products into walls using the subject flange materials. Definitions [0013] The term "flanged windows" refers to windows, doors, or other fenestration products that include a flange or nailing fin intended to cover any space between the window frame and the rough opening in the wall. The flange or fin may be integral to the fenestration product, or may be applied. [0014] The term "non-flanged windows" refers to windows that do not include a flange intended or nailing fin to cover the space between the window frame and the rough opening in the wall. [0015] The term "brickmold frame" refers to decorative trim attached to or integral to the window frame that covers any space between the window frame and the opening in the wall into which the window is installed. The term "brickmold window" refers to a window having a brickmold frame. [0016] The term "window jamb" or "jamb" refers to the side of the window frame. The window jamb is typically vertical. [0017] The term "window sill" or "sill" refers to the bottom portion of the window frame. The window sill is typically horizontal. [0018] The term "window head" or "head" refers to the top portion of the window frame. The window head is typically horizontal. [0019] The term "window" refers to any window, door, or other fenestration products intended to be installed in an opening in a wall. BRIEF DESCRIPTION OF THE DRAWINGS Continue reading about Self-adhered flange for use with non-flanged windows... Full patent description for Self-adhered flange for use with non-flanged windows Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Self-adhered flange for use with non-flanged windows patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. 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