Exterior Insulated Finish System and Method
20250198147 ยท 2025-06-19
Inventors
Cpc classification
E04B1/7641
FIXED CONSTRUCTIONS
International classification
Abstract
An EIFS panel may include a foam body. An EIFS panel may include a penetration through the foam body. An EIFS panel may include a molded structural member coupled with the foam body, wherein the molded structural member finishes the penetration such that no additional field work is required to prepare the EIFS panel for installation. An EIFS panel may include a pre-drilled fastener hole extending through the foam body, the pre-drilled fastener hole configured to align a fastener with a support structure of a building, wherein, when the fastener is inserted through the pre-drilled fastener hole, the EIFS panel is secured to the support structure of the building.
Claims
1. An EIFS panel comprising: a foam body; a penetration through the foam body; a molded structural member coupled with the foam body, wherein the molded structural member finishes the penetration such that no additional field work is required to prepare the EIFS panel for installation; and a pre-drilled fastener hole extending through the foam body, the pre-drilled fastener hole configured to align a fastener with a support structure of a building, wherein, when the fastener is inserted through the pre-drilled fastener hole, the EIFS panel is secured to the support structure of the building.
2. The EIFS panel of claim 1, wherein the molded structural member comprises: a window assembly; and flashing and other water management components for finishing a window penetration.
3. The EIFS panel of claim 2, wherein the window assembly comprises: a window cassette; and a removably attached window unit.
4. The EIFS panel of claim 3, wherein the window cassette comprises: an inner cassette body, the inner cassette body defining an opening configured to receive a window unit; a stop positioned around an interior surface of the inner cassette body on a building side of the window cassette, the stop configured to abut an interior surface of the window unit placed in the inner cassette body from an exterior side; and an outer cassette body coupled with a front side of the inner cassette body, the outer cassette body configured to receive a retaining clip, the retaining clip configured to hold the window unit in the inner cassette body against the stop.
5. The EIFS panel of claim 4, wherein the window cassette further comprises: a retaining clip seating channel defined by a protrusion from the front side of the inner cassette body and an interior surface of the outer cassette body; and a retaining clip securing channel on an interior surface of the outer cassette body.
6. The EIFS panel of claim 5, wherein the retaining clip further comprises: a bottom plate, the bottom plate configured to fit in the interior surface of the outer cassette body having a securing ridge configured to couple with the retaining clip securing channel; a window retention member protruding from a top side of the bottom plate and configured to extend beyond the interior surface of the inner cassette body to retain the window unit in the window cassette; and a seating ridge protruding from the bottom plate and configured to couple with the retaining clip seating channel.
7. The EIFS panel of claim 6, wherein the retaining clip further comprises: a drip edge coupled with the window retention member, the drip edge configured to direct water away from the window unit.
8. The EIFS panel of claim 4, wherein the inner cassette body and the outer cassette body are filled with insulating foam.
9. The EIFS panel of claim 1, further comprising: a first recess in a building facing surface of the foam body, the first recess configured to couple with a locating node affixed to an exterior wall of a building, wherein coupling the first recess and the locating node aligns the pre-drilled fastener hole with the support structure of the building and supports the foam body while the fastener is attached to the support structure of the building.
10. The EIFS panel of claim 9, further comprising: a second recess in the building facing surface of the foam body, the second recess configured to align with a feature on the exterior wall of the building, such that the foam body sits flush with the exterior wall of the building.
11. The EIFS panel of claim 9, further comprising: a drainage groove in the building facing surface of the foam body.
12. The EIFS panel of claim 1, further comprising: a foam attachment anchor secured in the pre-drilled fastener hole, the foam attachment anchor configured to couple the fastener with the foam body.
13. The EIFS panel of claim 1, wherein the foam body comprises a graphite enhanced polystyrene insulation board.
14. A method comprising: performing, by a data capture device, a first scan of an exterior wall of a building; processing, by a panel builder module, first scan data from the data capture device to generate a first panel layout, wherein the first panel layout includes a window penetration; performing, by the data capture device, a second scan of the exterior wall of the building, the second scan performed to capture data reflecting modifications made to the exterior wall of the building based on analysis of the first scan; creating, by the panel builder module, a second panel layout, the second panel layout including a second plurality of negative volumes based on the first scan and the second scan; and fabricating, by a panel shaping tool, an integrated window penetration EIFS panel based on the second panel layout.
15. The method of claim 14, wherein processing the first scan data further comprises: creating, by the panel builder module, a three-dimensional point cloud of the exterior wall of the building using the first scan data; rendering, by the panel builder module, a model of the exterior wall of the building using the three-dimensional point cloud; creating, by the panel builder module, a master volume for creating the first panel layout; creating, by the panel builder module, a first plurality of negative volumes in the master volume corresponding to features of the exterior wall of the building; and generating, by the panel builder module, the first panel layout on the master volume.
16. The method of claim 15, wherein creating the second panel layout comprises: identifying, by the panel builder module, a location of a locating pin installed on the exterior wall of the building; and creating, by the panel builder module, the second plurality of negative volumes corresponding to the location of the locating pin.
17. The method of claim 14, wherein fabricating the EIFS panel comprises: cutting, by the panel shaping tool, the EIFS panel from a foam billet; cutting, by the panel shaping tool, a plurality of voids and a plurality of recesses in the EIFS panel based on the first plurality of negative volumes and the second plurality of negative volumes, wherein the plurality of voids includes the window penetration; and coupling a molded structural member with window penetration, wherein the molded structural member finishes the window penetration such that no additional field work is required to prepare the EIFS panel for installation.
18. The method of claim 16, further comprising: fastening the EIFS panel to the exterior wall of the building by: aligning a recess corresponding to the locating pin with the locating pin; drilling a hole in the exterior wall of the building through a pre-drilled fastener hole in the EIFS panel; and securing the EIFS panel to the exterior wall of the building with a fastener inserted through the pre-drilled fastener hole.
19. The method of claim 17, wherein the molded structural member comprises: a window assembly; and flashing and other water management components for finishing a window penetration.
20. The method of claim 19, wherein the window assembly comprises: a window cassette; and a removably attached window unit.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
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DETAILED DESCRIPTION
[0049] The technology described in this disclosure relates to automating and simplifying the application of EIFS. As an example, the technology provides advantages by mapping the building to optimize material layout of large format foam insulation boards and robotically assisting workers in the scribing and installation processes. Further, the technology described herein includes using a mechanical fastening solution to remove installation temperature constraints, reduce cost, and reduce the time needed to fasten the foam insulation boards to the building. Additionally, the technology includes using a window cassette assembly to allow the installers to secure replacement windows from the exterior of the building, reducing the disturbance to building tenants and providing better energy efficiency than current window and/or sash retrofits.
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[0053] The data capture device 110 is configured to be hoisted up and down in proximity to the building and can capture data using its sensors in a single pass. Remote control of the hoisting unit and the data capture device 110 may be controlled wirelessly, for example using a 2.4 GHz WiFi 5 protocol. Hoisting ropes are run through channels 304 in the frame 302 to stabilize the frame against wind.
[0054] Returning to the flowchart of
[0055] Software operating on the computing device 120 (e.g., the panel builder module 130, an operating system, device drivers, etc.) may cooperate and communicate via a software communication mechanism implemented. The software communication mechanism can include and/or facilitate, for example, inter-process communication, local function or procedure calls, remote procedure calls, an object broker, direct socket communication (e.g., TCP/IP sockets) among software modules, UDP broadcasts and receipts, HTTP connections, etc. Further, any or all of the communication could be secure (e.g., SSH, HTTPS, etc.). In addition, while a single computing device 120 is depicted in
[0056]
[0057] At 406, the three-dimensional point cloud or mesh file of the building is imported into the software and positioned in the coordinate system for measuring. In an example embodiment, panel builder module 130 may include a virtual reality engine that renders the three-dimensional point cloud so that personnel can use 3D visualization software and hardware, to view, manipulate, and edit the 3D models of the building and panels in three dimensions, as shown in the example of
[0058] At 408, panel builder module 130 creates a master volume on the point cloud for creating the EIFS panel layout. In one embodiment, panel builder module 130 receives user input defining the boundary and thickness of the master volume based on interaction with the rendered 3D model of the building. In other embodiments, panel builder module 130 is configured to detect edges of walls and automatically generate the master volume. The initial master volume establishes the new building envelope in relation to the existing wall. The EIFS panels will be generated from this master volume.
[0059] At 410, panel builder module 130 creates negative volumes corresponding to features on the 3D model of the building. For example, negative volumes may be created for objects that protrude through the panel (e.g., windows, utility connections, etc.) and for other features that do not protrude far enough to penetrate the exterior of a panel (e.g., conduits, surface details, locating pins, etc.), as shown in the example of
[0060] At 412, panel builder module 130 generates a panel layout on the master volume by running a routine that divides the master volume into one or more panels and determines the positions of panel fasteners and locating pins, as depicted in the example of
[0061] Returning to
[0062] Panel locating node 504 may be installed to help locate the EIFS panels on the faade. In one embodiment, the locating node 504 may have a ball head and standoff from the wall. A recess in the back of the panel is created to mate with the locating node 504 thereby locating the panel on the wall. The ball head allows the locating node 504 to be mounted without concern for perpendicularity. In one embodiment, at least two pins are laid out on the wall per panel. These locating node 504 provide for the panels to be registered on the faade for proper installation and also act as a temporary panel support as the installer fastens the panels to the building.
[0063]
[0064] The inner cassette body 902, defines an opening into which a retrofit window can be installed. The inner cassette body 902 may include a stop 908 against which the interior surface of a replacement window unit (not shown) is placed when installed in the window cassette 506. In one embodiment, the stop 908 comprises a protrusion from the inner cassette body 902 that is positioned on the building side of the inner cassette body 902.
[0065] The outer cassette body 904 is coupled with a front side of the inner cassette body 902 and is configured to receive a retaining clip 910 that holds the window unit in the window cassette 506. To engage the retaining clip 910, the outer cassette body 904 includes a retaining clip securing channel 912 that runs along the interior surface of the outer cassette body 904 parallel to the window opening. Additionally, a protrusion 914 from the front of the inner cassette body 902 and the interior surface of the outer cassette body 904 define a retaining clip seating channel 916 to further engage the retaining clip 910.
[0066] Retaining clip 910 includes a bottom plate 918, a window retention member 920, a drip edge 922, a securing ridge 924, and a seating ridge 926. The bottom plate 918 is configured to rest on the interior surface of the outer cassette body 904 and the window retention member 920 protrudes substantially perpendicularly from the bottom plate 918 into the window opening beyond the interior surface of the inner cassette body 902. When a window unit is seated in the inner cassette body, the window retention member 920 secures the window unit against stop 908. To install the retaining clip 910, the seating ridge 926 is inserted into the retaining clip seating channel 916 and pressed inward until the securing ridge 924 engages with the retaining clip securing channel 912, locking the retaining clip 910 in place. Retaining clip 910 is simple to install, without tools, and creates a secure and clean finish to the exterior of the installed window. The retaining clip 910 may be mitered at the corners of the window cassette 506 to provide a finished surface against which another retaining clip can rest. As depicted in the example of
[0067] The drip edge 922 protrudes downward from the top of the window retention member 920 and creates a surface that directs water running down the window unit away from the base of the window unit to prevent water infiltration.
[0068] In some embodiments, one or more of the inner cassette body 902, the outer cassette body 904, and the building connection flange 906 may be filled with insulating foam to increase the overall insulation value and efficiency of the window cassette 506. In further embodiments, window cassette 506 can be sized so that the sash of the existing window can be removed, and the existing frame left in place. Sill and jamb trim can then be installed over the existing frame, eliminating the need to remove the old frame and avoiding potentially expensive asbestos remediation costs.
[0069] Using the window cassette approach, tenant disruption is minimal and only occurs during removal of the existing window and applying trim to the newly installed window cassette 506. Moreover, in addition to being structurally sound and externally installable without disruption to the interior of the building, the integration of the novel window cassettes 506 as described herein provides for thermal efficiency improvements of over 30% compared to existing solutions. This is due in part to the tight seal formed between the window cassette 506 and the precision-formed panels because of tight tolerances provided by the techniques described herein as compared to hand cut panels applied by construction workers under existing approaches which suffer from up to a 40% degradation in performance because of air infiltration at the window panel interface. Further, in climates that are more moderate and do not require the same thermal efficiency, the technology described herein can allow for the use of less expensive materials because the thermal performance is so much better (e.g., 5-inch foam thickness vs. 6-inch, less efficient foam material, etc.). Similar performance benefits were also discovered with respect to humidity/moisture management.
[0070] Returning to
[0071] At 210, panel builder module 130 uses data from the first and second scans to finalize the panel layout. When the data from the second scan has been processed, the initial panel layout is modified to accommodate the actual location of the newly installed panel locating node 504 and window cassettes 506. Panel geometry will be finalized and 3D mesh files will be created for each panel with a map showing the location of each panel on the building. Any other fabrication or installation documents will be produced at the same time.
[0072] At 212, the panels are fabricated. To create the panels, panel builder module 130 generates code to control panel shaping tools 150 to shape the panels. In one embodiment, a computer numerical controlled (CNC) hot wire machine receives instructions from panel builder module 130 to cut panel perimeters and other features that extend through the panel (e.g., negative volumes for windows, doors, etc.). In some embodiments, the panels may be cut from a foam billet that is substantially thicker than the finished foam panels. Subsequently, a CNC milling machine may receive instructions from panel builder module 130 to mill the back side of the panels.
[0073] As each panel is formed for a particular portion of the building faade, and the location of the internal structural members of the building are advantageously pre-determined by the scanning as described herein, the panels may be formed with fastener holes in precise locations that match the internal structural members. Fastener anchors may be easily inserted into the preformed holes and the panels can be affixed to the structural members through the existing building faade using fasteners. This process eliminates the manual work involved by workers to try and locate the right place in which to apply a fastener, and thus speeds up the entire retrofit project. It also eliminates the situation where fasters are only drilled into the faade and not the internal structure (which can lead to dangerous cladding failures and brick falls).
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[0075] As can be seen in the example of
[0076] To secure the panel 1000 to the exterior wall of a building, the panel includes a recess 1006 for coupling with a locating node 504 and a pre-drilled fastener hole 1008 for an anchor and/or fastener. As described elsewhere herein, panel builder module 130 may determine where building support structures are located and position fastener holes such that when panel 1000 is positioned on the exterior wall of a building, the fastener hole 1008 aligns with the building structure. This allows the fastener to be inserted into the building structure rather than just the cladding of the building providing for a more secure attachment of panel 1000. To align the fastener hole 1008 with the building structure, panel builder module 130 places the fastener hole 1008 relative to the recess 1006 such that when the locating node 504 is coupled with recess 1006, the fastener hole is correctly aligned with the building structure.
[0077] In some embodiments, as part of the panel fabrication process, fastener hardware, such as the auger style anchor depicted in the examples of
[0078] In addition to recess 1006, panel builder module 130 defines recesses, such as recess 1010, to be fabricated into the building facing side of panel 1000 to fit over features of the exterior wall of the building.
[0079] Returning to
[0080] Once the panels have been secured, windows can be installed and the exterior finish applied. As described above, the design of the window cassette 506 provides for snap-in installation of the window unit from the exterior of the building. While window installation may be ordered as a last step, the windows can be installed at any time convenient to the process after the installation of the window cassette 506. This is especially important as window lead times can vary. The interior sill and jams can be installed at any time after the window cassette 506 is fastened to the building exterior. Interior sill and jam installation is the only work that will impact the tenant, this work does not hold up any of the other system work, and can be scheduled throughout the project to meet a time convenient to the tenant.
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[0082] In some embodiments, to address fire codes and for additional ease in installation, a monolithic panel with molded structural members, including the components to interface with field panels, lamina, flashing, and a replacement window, embedded in an insulating material is contemplated. While described in this document as a penetration for a window, the monolithic design can be used for other building penetrations, including doors, utility access panels, etc., are contemplated.
[0083] Advantages of a monolithic design for building penetrations are various and include the following, among others. Flashing and water management, such as weep vents and drip edges, are integrally molded into the panel reducing or removing the need to address these components in the field at the time of installation. The integrated panel can be installed in a single step rather than multiple steps (e.g., window cassette and EIFS panel). A single integrated panel reduces the number of SKUs to procure and handle at the installation site. The materials used in a monolithic panel can be developed and selected to meet and ensure compliance with stringent fire and building codes. The time-consuming work to backwrap and provide a wet seal on the building penetration, and the corner conditions that come with such work, are reduced and/or eliminated with a monolithic panel as described herein. Further, since a building scan has been obtained, as described elsewhere herein, the monolithic panel can be produced for the exact specifications of the penetration eliminating the need to fit, level, and connect multiple components and reducing installation time and steps for human error. The monolithic design can provide greater thermal efficiency than a multipart system due to the foam insulating between the window frame and building faade. Architectural design elements can be designed and machined into the panel further reducing the steps to be performed at the installation site.
[0084] In various embodiments, the window, door, or other penetration components may be integrated in the monolithic panel. In some embodiments, the window can be removably attached to the panel or permanently affixed. A removably attached assembly may include a cassette embedded in the panel and into which the window is secured, for example using the retaining clips as described herein. In another embodiment, a permanently affixed assembly may include the window frame itself embedded in or adhered to the panel. In both instances, the panel helps secure the window to the wall, provides a sealed and insulated interface to the specified cladding, and is finished such that detail work in the field is reduced or eliminated.
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[0088] The foregoing description, for purpose of explanation, has been described with reference to various embodiments and examples. However, the illustrative discussions above are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Many modifications and variations are possible in view of the above teachings. The various embodiments and examples were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to utilize the innovative technology with various modifications as may be suited to the particular use contemplated. For instance, it should be understood that the technology described herein can be practiced without these specific details in some cases. Further, various systems, devices, and structures are shown in block diagram form in order to avoid obscuring the description. For instance, various implementations are described as having particular hardware, software, and user interfaces. However, the present disclosure applies to any type of computing device that can receive data and commands, and to any peripheral devices providing services.
[0089] In some instances, various implementations may be presented herein in terms of algorithms and symbolic representations of operations on data bits within a computer memory. An algorithm is here, and generally, conceived to be a self-consistent set of operations leading to a desired result. The operations are those requiring physical manipulations of physical quantities. Usually, though not necessarily, these quantities take the form of electrical or magnetic signals capable of being stored, transferred, combined, compared, and otherwise manipulated. It has proven convenient at times, principally for reasons of common usage, to refer to these signals as bits, values, elements, symbols, characters, terms, numbers, or the like.
[0090] It should be borne in mind, however, that all of these and similar terms are to be associated with the appropriate physical quantities and are merely convenient labels applied to these quantities. Unless specifically stated otherwise as apparent from the following discussion, it is appreciated that throughout this disclosure, discussions utilizing terms such as processing, computing, calculating, determining, displaying, or the like, refer to the action and methods of a computer system that manipulates and transforms data represented as physical (electronic) quantities within the computer system's registers and memories into other data similarly represented as physical quantities within the computer system memories or registers or other such information storage, transmission or display devices.
[0091] A data processing system suitable for storing and/or executing program code, such as the computing system and/or devices discussed herein, may include at least one processor coupled directly or indirectly to memory elements through a system bus. The memory elements can include local memory employed during actual execution of the program code, bulk storage, and cache memories that provide temporary storage of at least some program code in order to reduce the number of times code must be retrieved from bulk storage during execution. Input or I/O devices can be coupled to the system either directly or through intervening I/O controllers. The data processing system may include an apparatus may be specially constructed for the required purposes, or it may comprise a general-purpose computer selectively activated or reconfigured by a computer program stored in the computer.
[0092] The foregoing description has been presented for the purposes of illustration and description. It is not intended to be exhaustive or to limit the specification to the precise form disclosed. Many modifications and variations are possible in light of the above teaching. It is intended that the scope of the disclosure be limited not by this detailed description, but rather by the claims of this application. As will be understood by those familiar with the art, the specification may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. Likewise, the particular naming and division of the modules, routines, features, attributes, methodologies and other aspects may not be mandatory or significant, and the mechanisms that implement the specification or its features may have different names, divisions, and/or formats.
[0093] Furthermore, the modules, routines, features, attributes, methodologies and other aspects of the disclosure can be implemented as software, hardware, firmware, or any combination of the foregoing. The technology can also take the form of a computer program product accessible from a computer-usable or computer-readable medium providing program code for use by or in connection with a computer or any instruction execution system. Wherever a component, an example of which is a module or engine, of the specification is implemented as software, the component can be implemented as a standalone program, as part of a larger program, as a plurality of separate programs, as a statically or dynamically linked library, as a kernel loadable module, as firmware, as resident software, as microcode, as a device driver, and/or in every and any other way known now or in the future. Additionally, the disclosure is in no way limited to implementation in any specific programming language, or for any specific operating system or environment. Accordingly, the disclosure is intended to be illustrative, but not limiting, of the scope of the subject matter set forth in the following claims.