Insulative panels and methods of fabricating insulative panels

Abstract

An insulative panel includes a panel body having opposed front and rear surfaces extending between first and second lateral edges and between first and second longitudinal edges, wherein the front surface includes a raised portion defined by an array of projections extending from a recessed portion. A permeable reinforcing material is adhered to the raised portion of the front surface and defines a recessed space between the permeable reinforcing material and the recessed portion of the front surface. A first portion of a basecoat layer is disposed in the recessed space and a second portion of the basecoat layer covers the permeable reinforcing material, such that the basecoat layer encapsulates the permeable reinforcing material.

Description

INSULATIVE PANELS AND METHODS OF FABRICATING INSULATIVEPANELSCross-reference to Related Application

[0001] This application claims priority to and all benefit of U.S. Provisional Patent Application Serial No. 63 / 664,515, filed June 26, 2024 and entitled INSULATIVE PANELS AND METHODS OF FABRICATING INSULATIVE PANELS, the entire disclosure of which is incorporated herein by reference.Background

[0002] Building panels are often used to provide functional and / or aesthetic features to a building facade. One example of a panel-based facade cladding is an Exterior Insulation and Finish System (EIFS). As defined by the International Building Code and ASTM International, an EIFS is a non-load bearing, exterior wall cladding system that is formed from insulation boards or panels attached to an exterior substrate (e.g., building wall); an integrally reinforced base coat; and a textured protective finish coat. EIFS structures may be used to provide a weather resistant, seamless, insulated finish to a residence or commercial building.Summary of the Disclosure

[0003] In an exemplary embodiment of the present disclosure, an insulative panel includes a panel body having opposed front and rear surfaces extending between first and second lateral edges and between first and second longitudinal edges, wherein the front surface includes a raised portion defined by an array of projections extending from a recessed portion. A permeable reinforcing material is adhered to the raised portion of the front surface and defines a recessed space between the permeable reinforcing material and the recessed portion of the front surface. A first portion of a basecoat layer is disposed in the recessed space and a second portion of the basecoat layer covers the permeable reinforcing material, such that the basecoat layer encapsulates the permeable reinforcing material.

[0004] In another exemplary embodiment of the present disclosure, a method of fabricating an insulative panel is contemplated. In the exemplary method, a panel body is provided having opposed front and rear surfaces extending between first and second lateral edges and between first and second longitudinal edges, the front surface including a raised portion defined by an array of projections extending from a recessed portion. A permeablereinforcing material is adhered to the raised portions of the front surface. A liquid basecoat is applied to the front surface of the panel body, such that a first portion of the liquid basecoat permeates through the permeable reinforcing material and is received in a recessed space between the permeable reinforcing material and the recessed portion of the front surface, and a second portion of the liquid basecoat covers the permeable reinforcing material, thereby encapsulating the permeable reinforcing material.Brief Description of the Drawings

[0005] Further features and advantages of the invention will become apparent from the following detailed description made with reference to the accompanying drawings, wherein:

[0006] FIG. 1 illustrates a perspective view of a conventional exterior insulation and finish system;

[0007] FIG. 2 illustrates a schematic partial side cross-sectional view of an insulative panel, according to an exemplary embodiment of the present disclosure;

[0008] FIG. 3 illustrates a front view of an insulative panel, according to an exemplary embodiment of the present disclosure;

[0009] FIG. 3A illustrates an enlarged partial front view of the insulative panel of FIG. 3;

[0010] FIG. 3B illustrates a partial side cross-sectional view of the insulative panel of FIG. 3, shown with a permeable reinforcing material adhered to raised portions of the front surface of the insulative panel, and a basecoat layer encapsulating the reinforcing material; and

[0011] FIG. 4 illustrates a partial front view of another insulative panel, according to another exemplary embodiment of the present disclosure; andDetailed Description

[0012] This Detailed Description merely describes exemplary embodiments and is not intended to limit the scope of the claims in any way. Indeed, the invention as claimed is broader than and unlimited by the described embodiments, and the terms used have their full ordinary meaning. For example, while certain exemplary features presented in the present disclosure are described and / or shown as being used with building panels for an Exterior Insulation and Finish System (EIFS), any one or more of the features described herein may beutilized with or incorporated into other types of building facade cladding, including, for example, continuous insulation (CI) panels.

[0013] In conventional EIFS applications, as shown in FIG. 1, an air / weather barrier 4 (e.g., a polymer-based, liquid applied water-resistive barrier, such as the Backstop® formulations manufactured by Dryvit, or a butyl-based, acrylic polymer based, or other “peel and stick” composite membrane, such as ExoAir air barrier membranes, manufactured by Tremco) is applied to a sheathing 3 (e.g., gypsum board, plywood, oriented strand board, cement board, glass mat) and is allowed to dry over a first period (e.g., day one). A notched or spaced wet adhesive 5 (e.g., cementitious adhesives, spray foam adhesives, including isocyanate spray foam adhesive, gunnable moisture cure adhesives) is applied to a front surface of the air / weather barrier or to a rear surface of the insulative panel and a plurality of insulative panels or boards 6 are adhered to the air / weather barrier, by the notched adhesive, in a continuous array using the notched adhesive, which is allowed to dry over a second period (e.g., day two). Front surfaces of the insulative boards 6 are rasped to provide planar alignment between adjacent uneven boards over a third period (e.g., day three). Backwrap reinforcing mesh (not shown), secured to the substrate or to the rear edge surfaces of the insulative panel prior to attachment, are wrapped around the panel edges and secured to the front edge surfaces of the panel. A wet basecoat 8 (e.g., cementitious material for impact and / or fire resistance) is then applied to the prepared or rasped front surfaces of the insulative boards, with a reinforcing mesh material 7 (e.g., fiberglass or polypropylene mesh of various densities, provided from a roll of material) embedded in the basecoat before allowing the basecoat to dry over a fourth period (e.g., day four). A wet finish layer 9 (e.g., acrylic or other weather resistant coating, may or may not contain texturizing agent) is then applied over the basecoat and allowed to dry over a fifth period (e.g., day five). As noted, this installation process may take up to five days, or longer, and requires skilled implementation of multiple installation steps and / or additional labor in material clean-up and aesthetic corrective actions.

[0014] As shown in FIG. 2, an insulative panel 60 may be provided with a panel body 61 having a textured, roughened, or ridged front surface 69 to which a reinforcing material 67 (e.g., a fiberglass reinforcing mesh) is attached (e.g., in the field or pre-applied in the factory) by being adhered (e.g., by an adhesive layer applied to one of the reinforcing material and the panel body front surface) to raised portions of the front surface. The front surface 69 may be prepared, for example, by injection molding, embossing, wire cutting, sanding, or rasping. When the basecoat 68 is applied to the mesh-bearing front surface of the panel body 61, theliquid basecoat seeps or permeates through the mesh into the recessed portions of the textured surface, thereby at least partially encapsulating or embedding the mesh 67 in the basecoat layer. This embedding of the mesh in the basecoat may produce improved performance adhesion values and improved impact resistance as compared, for example, to pinning the reinforcing mesh between the panel and the basecoat. This arrangement is shown and described in co-pending U.S. Application Serial No. 18 / 420,242 (the “’242 Application”), the entire disclosure of which is incorporated herein by reference.

[0015] In some exemplary arrangement, an insulative panel for an EIFS arrangement may be provided in a pre-reinforced and coated condition, for example, to eliminate mesh and basecoat applying steps during panel installation. In other exemplary arrangements, the panel body may be provided without reinforcing mesh and basecoat layers, with these EIFS components being applied to the panel body in the field, either before or after mounting the panel body to a building substrate.

[0016] While an adhesive may be applied to the raised portions of the panel body front surface and / or to the surface of the reinforcing material as a separate operation, in some arrangement, a self-adhesive reinforcing mesh including a pre-applied adhesive layer may be utilized to eliminate this adhesive application step. Exemplary self-adhesive reinforcing mesh products include, for example, ADFORS 0038 / 225, 4.3 oz / yd2fiberglass mesh with alkali resistant / fire retardant (antimony trioxide) coating and self-adhesive coating, manufactured by Saint-Gobain.

[0017] In some embodiments, the size, shape, and distribution of the raised and recessed portions of a panel body front surface may be substantially random or semi-random, as generated, for example, by sanding or rasping the front surface of a panel body. In other embodiments, a panel body may include a generally uniform array of projections extending from a recessed surface portion of the panel body front surface, for example, to provide more uniform permeation of the liquid basecoat through the permeable reinforcing material over the front surface of the panel body. This generally uniform front surface profile may be formed, for example, by injection molding, embossing, or wire cutting the front surface of the panel body.

[0018] The raised portion defining projections on the panel body front surface may be sized and spaced to provide adequate raised surface area for adhesion of the permeable reinforcing material, while allowing for a recessed space beneath the adhered permeable reinforcing material over a substantial portion (e.g., at least about 50%, or at least about 75%, or at least about 90%, or about 95%) of the reinforcing material surface area.

[0019] By providing a recessed surface over a substantial portion of the panel body front surface, the permeable reinforcing material or mesh attached to the raised portions may be substantially fully encapsulated by the basecoat material. This substantially full encapsulation of the reinforcement material may provide for enhanced reinforcement and retention (by the reinforcing material) of a fire resistant basecoat material (e.g., a polymer modified cementitious mortar material) over a less fire resistant panel body material (e.g., an extruded polystyrene (EPS)) when exposed to fire or extreme heat.

[0020] In some examples, each projection may define a raised surface area of between about 0.01 in2and about 1 in2, or between about 0.025 in2and about 0.1 in2, or about 0.0625 in2. In some examples, each projection may have a maximum dimension of no greater than about 1 inch, or no greater than about 14 inch, or no greater than about 14 inch. In some examples, each projection may have a minimum dimension of at least about 1 / 16 inch, or at least about 1 / 8 inch, or at least about 14 inch. In some examples, each projection may be surrounded by a recessed portion having a minimum dimension of at least about 1 / 8 inch, or at least about 3 / 8 inch, or at least about 14 inch. In some examples, the projections may be arranged in rows, with adjacent projections in each row spaced apart longitudinally by between about 1 / 8 inch and about 14 inch. In some examples, the rows of projections may be staggered, for example, with each projection longitudinally disposed approximately midway between the two nearest projections of the adjacent row.

[0021] The projections may be provided in a variety of adhesion surface defining shapes (which may, but need not, be consistent in size and shape), including, for example, circular, square, rectangular, triangular, diamond-shaped, or elliptical or oval shaped, which may be selected, for example, for manufacturability, durability, or aesthetics. In some examples, each projection is oval shaped, with a major diameter to minor diameter ratio of at least about 1.5: 1, or at least about 2: 1, or about 3:1. In other examples, each projection is substantially square.

[0022] A variety of front surface profiles may be utilized to provide a reinforcement material bearing raised surface portion and a basecoat receiving recessed surface portion. In some embodiments, the raised surface may be substantially planar, for example, to facilitate uniform adhesion of the reinforcing material to the raised surface on the panel body. In some embodiments, the recessed surface may additionally or alternatively be substantially planar. In some embodiments, a panel body front surface is provided with a substantially planar raised portion and a substantially planar recessed portion to define a recessed space between the adhered reinforcing material and the recessed surface portion having a substantiallyuniform height or depth, for example, to receive a substantially uniform amount of liquid basecoat permeating through the reinforcing material and into the recessed space, over the surface of the panel body.

[0023] In some examples, the height of the projections and the resulting height or depth of the recessed space may provide for a substantial portion of the applied liquid basecoat to permeate through the permeable reinforcing material and into the recessed space. In some examples, where a first portion of the basecoat layer is disposed in the recessed space and a second portion of the basecoat layer is disposed over or covering the permeable reinforcing material, the thickness of the first portion may be between about 10% and about 90% of the total basecoat layer thickness, or between about 40% and about 60% of the basecoat layer thickness, or about 50% of the basecoat layer thickness (i.e., with a first portion thickness about the same as a second portion thickness). In some examples, the total thickness of the basecoat layer may be between about 1 / 8 inch and about 1 / 2 inch, or between about 1 / 8 inch and about 14 inch, or about 3 / 16 inch.

[0024] A variety of methods may be used to apply a basecoat layer of substantially uniform thickness including, for example, mechanically applied (e.g., extrusion) or hand applied (e.g., using trowels or other tools), for example, for field fabrication of the insulative panel.

[0025] FIGS. 3, 3A, and 3B illustrate various views of an exemplary insulative panel 100 including a panel body 110 having opposed front and rear surfaces 111, 112 extending between first and second lateral (e.g., horizontal top and bottom) edges 110-1, 110-2 and between first and second longitudinal (e.g., vertical left and right side) edges 110-3, 110-4. The front surface 111 of the panel body 110 includes a raised portion I l la defined by an array of projections 115 extending from a recessed portion 111b. A permeable reinforcing material (e.g., woven fiberglass mesh) 120 is adhered to the raised portion I l la (e.g., to some or all of the projections 115), thereby defining a recessed space 105 between the permeable reinforcing material and the recessed portion 111b. A basecoat layer 130 (e.g., a polymer modified cementitious mortar material, such as, for example, an acrylic polymer modified Type N or S mortar material) is disposed on the front surface 111 of the panel body 110, with a first portion 130a disposed in the recessed space 105 and a second portion 130b covering the permeable reinforcing material 120, such that the basecoat layer encapsulates or fully embeds the permeable reinforcing material.

[0026] The projections 115 on the panel body front surface 111 may be sized and spaced to provide adequate raised surface area for adhesion of the permeable reinforcingmaterial, while allowing for a recessed space 105 beneath the adhered permeable reinforcing material over a substantial portion (e.g., at least about 50%, or at least about 75%, or at least about 90%, or about 95%) of the reinforcing material surface area. In some examples, each projection may define a raised surface area of between about 0.01 in2and about 1 in2, or between about 0.025 in2and about 0.1 in2, or about 0.0625 in2. In some examples, each projection 115 may have a maximum dimension of between about 1 / 16 inch and about 1 inch, or between about 14 inch and about 14 inch, or about 3 / 8 inch. In some examples, each projection 115 may have a minimum dimension of between about 1 / 16 inch and about 1 inch, or between about 1 / 8 inch and about 14 inch or about 1 / 8 inch. In some examples, each projection 115 may be surrounded by a recessed portion having a minimum dimension r of at least about 1 / 8 inch, or at least about 3 / 8 inch, or at least about3 / 4 inch, or about 1 14 inch. In some examples, the projections may be arranged in rows, with adjacent projections in each row spaced apart longitudinally by between about 1 / 8 inch and about34 inch, and row axes xl, x2, etc. spaced apart by a distance between about 1 / 4 inch and about 1 14 inches, or about 7 / 8 inch. In some examples, the rows of projections 115 may be staggered, for example, with each projection longitudinally disposed approximately midway between the two nearest projections of the adjacent row. In other examples, as shown in FIG. 4 the rows of projections 115' may be aligned, to form a square grid array of projections.

[0027] The projections may be provided in a variety of adhesion surface defining shapes (which may, but need not, be consistent in size and shape), including, for example, circular, square, rectangular, triangular, diamond-shaped, or elliptical or oval shaped. The size shape of the projections may be selected, for example, to reduce the raised portion of the panel body surface while provide sufficient surface for adhesion and sufficient size so as not to puncture or pierce the reinforcing mesh. In some examples, as shown in FIG. 3A, each projection 115 is oval shaped, with a major diameter to minor diameter ratio of at least about 1.5:1, or at least about 2: 1, or about 3: 1. In other examples, as shown in FIG. 4, each projection 115' may be substantially square shaped (e.g., 14 inch x 14 inch square).

[0028] In some examples, the thickness tl of the first portion 130a of the basecoat layer 130 (disposed in the recessed space) is between about 10% and about 90% of the basecoat layer thickness t, or between about 40% and about 60% of the basecoat layer thickness, or about 50% of the basecoat layer thickness (i.e., approximately the same as the thickness t2 of the second portion 130b of the basecoat layer). In some examples, the total thickness t of the basecoat layer may be between about 1 / 8 inch and about 14 inch, or between about 1 / 8 inch and about 14 inch, or about 3 / 16 inch.

[0029] In an exemplary method of fabricating an insulative panel 100, a panel body 110 is provided with a front surface 111 including a raised portion I l la defined by an array of projections 115 extending from a recessed portion 11 lb. The panel body 110 may be prefabricated with raised and recessed portions I l la, 111b (e.g., by injection molding or embossing), or the raised and recessed portions may be formed during the fabrication process (e.g., by embossing or wire cutting). A permeable reinforcing material 120 is adhered to the raised portion I l la of the front surface 111, for example, by a self-adhesive layer 121 provided on the reinforcing material. A liquid basecoat 130 is applied (e.g., by extrusion) to the front surface 111 of the panel body, such that a first portion 130a of the liquid basecoat permeates through the permeable reinforcing material 120 and is received in a recessed space 150 between the permeable reinforcing material and the recessed portion I l la of the front surface, and a second portion 130b of the liquid basecoat covers the permeable reinforcing material, thereby encapsulating the permeable reinforcing material. The liquid basecoat 130 may be permitted to dry or cure, for example, prior to storing, shipping, and / or installing the insulative panel 100.

[0030] The insulative panels described herein may be formed from a variety of suitable materials, including, for example, expanded polystyrene (EPS) foam, extruded polystyrene (XPS) foam, polyurethane (PU) foam, and mineral wool. Insulative materials and panel thickness (e.g., between 1 and 12 inches) may be selected, for example, to provide a desired insulating R-value (e.g., an R-value of at least about R-4 / inch nominal for a system between 1 and 12 inches thick), and / or based on other factors (e.g., cost, weight, inflammability, impact resistance). In some embodiments the panel material may include one or more additive materials, such as, for example, graphite, silicone, glass, or other such additive materials, for example, to provide enhanced properties, such as enhanced insulation (e.g., increased R-value), increased fire resistance, etc.

[0031] By providing a recessed surface over a substantial portion of the panel body front surface, the permeable reinforcing material or mesh attached to the raised portions may be substantially fully encapsulated by the basecoat material. This substantially full encapsulation of the reinforcement material may provide for enhanced reinforcement and retention (by the reinforcing material) of a fire resistant basecoat material (e.g., a polymer modified cementitious mortar material) over a less fire resistant panel body material (e.g., an extruded polystyrene (EPS)) when exposed to fire or extreme heat.

[0032] In some embodiments, the panel body 110 may be formed from a unitary or monolithic substrate or board. In other embodiments, the panel body may be formed fromtwo or more boards or substrates joined together (e.g., by interlocking tongue and groove edges) to form an assembled panel body, with a plurality of the two or more boards defining the front surface of the panel body. In such arrangements, the panel board components may each be provided with pre-formed raised and recessed front surface portions, or the raised and recessed front surface portions may be formed on the assembled panel front surface after assembly of the board components, for example, by embossing, wire cutting, sanding, or rasping the front surface of the assembled panel body. Exemplary panel board assemblies are described in co-pending U.S. Provisional Patent Application Serial No. 63 / 664,428, entitled BUILDING PANEL STRUCTURES, ARRANGEMENTS, AND METHODS (the “’428 Application”), the entire disclosure of which is incorporated herein by reference.

[0033] Other elements, components, and / or materials may be provided with the insulative panels, such as, for example, a finish layer (e.g., a textured modified cementitious mortar material) applied over the basecoat layer, mounting features (e.g., rails, struts) secured to the rear surface of the panel body, and / or drainage channels formed in the rear surface of the panel body, for example, as described in the above incorporated ‘242 and ‘428 Applications.EXAMPLE:

[0034] A fire test in accordance with NFPA 285 (2023) was performed on a test specimen using panels having basecoat encapsulated reinforcing mesh adhered to an array of projections extending from a recessed portion of the panel body front surface, as described herein. Each panel included an EPS panel body formed from a central base panel board and attached edge panel boards (e.g., as described in the above incorporated ‘428 Application). The panel bodies were provided with embossed front and side edge surfaces defining an array of 3 / 8” x 1 / 8” oval projections extending 1 / 8” from a recessed front surface to define surfaces with about 5% raised and about 95% recessed profile. A 4.3 oz / yd2reinforcing fiberglass mesh with alkali resistant / fire retardant (antimony trioxide) coating was adhered to the projections using a self-adhesive coating on the mesh, and a basecoat material (Genesis DMS® polymer modified, cementitious basecoat) was extruded onto the permeable reinforcing mesh to provide a 1 / 8” thick lower or first basecoat layer under the reinforcing mesh and around the projections, and a 1 / 8” thick upper or second basecoat layer covering the reinforcing mesh. A finish layer (textured modified cementitious mortar material) was applied over the basecoat layer. The finished insulative panels were secured to steel columns and concrete slabs in a 2x3 array above a window opening, using Fedderlite® M-typechannels and hangers. Illustrations of the test specimen installation and panel construction are included in the attached Appendix, which forms a part of the present disclosure.

[0035] Upon completion of the NFPA 285 testing, it was confirmed that all panels of the test specimen had passed the testing.

[0036] While various inventive aspects, concepts and features of the inventions may be described and illustrated herein as embodied in combination in the exemplary embodiments, these various aspects, concepts and features may be used in many alternative embodiments, either individually or in various combinations and sub-combinations thereof. Unless expressly excluded herein all such combinations and sub-combinations are intended to be within the scope of the present inventions. Still further, while various alternative embodiments as to the various aspects, concepts and features of the inventions— such as alternative materials, structures, configurations, methods, devices and components, alternatives as to form, fit and function, and so on— may be described herein, such descriptions are not intended to be a complete or exhaustive list of available alternative embodiments, whether presently known or later developed. Those skilled in the art may readily adopt one or more of the inventive aspects, concepts or features into additional embodiments and uses within the scope of the present inventions even if such embodiments are not expressly disclosed herein. Additionally, even though some features, concepts or aspects of the inventions may be described herein as being a preferred arrangement or method, such description is not intended to suggest that such feature is required or necessary unless expressly so stated. Still further, exemplary or representative values and ranges may be included to assist in understanding the present disclosure, however, such values and ranges are not to be construed in a limiting sense and are intended to be critical values or ranges only if so expressly stated. Parameters identified as “approximate” or “about” a specified value are intended to include the specified value, values within 5% of the specified value, and values within 10% of the specified value, unless expressly stated otherwise. Further, it is to be understood that the drawings accompanying the present disclosure may, but need not, be to scale, and therefore may be understood as teaching various ratios and proportions evident in the drawings. Moreover, while various aspects, features and concepts may be expressly identified herein as being inventive or forming part of an invention, such identification is not intended to be exclusive, but rather there may be inventive aspects, concepts and features that are fully described herein without being expressly identified as such or as part of a specific invention, the inventions instead being set forth in the appended claims. Descriptions of exemplary methods or processes are not limited to inclusion of all steps as being required inall cases, nor is the order that the steps are presented to be construed as required or necessary unless expressly so stated.

Claims

We claim:

1. An insulative panel comprising: a panel body having opposed front and rear surfaces extending between first and second lateral edges and between first and second longitudinal edges, wherein the front surface includes a raised portion defined by an array of projections extending from a recessed portion; a permeable reinforcing material adhered to the raised portion of the front surface and defining a recessed space between the permeable reinforcing material and the recessed portion of the front surface; and a basecoat layer having a first portion disposed in the recessed space and a second portion covering the permeable reinforcing material, such that the basecoat layer encapsulates the permeable reinforcing material.

2. The insulative panel of claim 1, wherein the permeable reinforcing material comprises a woven mesh.

3. The insulative panel of any of claims 1-2, wherein the basecoat layer comprises a cementitious mortar material.

4. The insulative panel of any of claims 1-3, wherein the panel body comprises an expanded polystyrene (EPS) foam.

5. The insulative panel of any of claims 1-4, wherein the recessed portion of the panel body front surface has a surface area of at least about 50%, or at least about 75%, or at least about 90%, or about 95% of a surface area of the reinforcing material.

6. The insulative panel of any of claims 1-5, wherein each projection of the array of projections has a raised surface area of between about 0.01 in2and about 1 in2, or between about 0.025 in2and about 0.1 in2, or about 0.0625 in2.

7. The insulative panel of any of claims 1-6, wherein each projection of the array of projections has a maximum dimension of between about 1 / 16 inch and about 1 inch, or between about 14 inch and about / i inch, or about 3 / 8 inch.

8. The insulative panel of any of claims 1-7, wherein each projection of the array of projections has a minimum dimension of between about 1 / 16 inch and about 1 inch, or between about 1 / 8 inch and about i inch or about 1 / 8 inch.

9. The insulative panel of any of claims 1-8, wherein each projection of the array of projections has an adhesion surface defining shape that is one of for example, circular, square, rectangular, triangular, diamond-shaped, and elliptical or oval shaped.

10. The insulative panel of claim 9, wherein the adhesion surface defining is oval shaped with a major diameter to minor diameter ratio of at least about 1.5: 1, or at least about 2: 1, or about 3: 1.

11. The insulative panel of any of claims 1-10, wherein the first portion of the basecoat layer has a thickness that is between about 10% and about 90%, or between about 40% and about 60%, or about 50%, of a total thickness of the basecoat layer.

12. The insulative panel of any of claims 1-11, wherein the basecoat layer has a total thickness of between about 1 / 8 inch and about i inch, or between about 1 / 8 inch and about % inch, or about 3 / 16 inch.

13. The insulative panel of any of claims 1-12, wherein the panel body comprises a unitary, monolithic board defining an entirety of the front surface of the panel body.

14. The insulative panel of any of claims 1-12, wherein the body is formed from two or more boards or substrates joined together to form an assembled panel body, with a plurality of the two or more boards defining the front surface of the panel body.

15. A method of fabricating an insulative panel, the method comprising: providing a panel body having opposed front and rear surfaces extending between first and second lateral edges and between first and second longitudinal edges, wherein the front surface includes a raised portion defined by an array of projections extending from a recessed portion; adhering a permeable reinforcing material to the raised portion of the front surface;applying a liquid basecoat to the front surface of the panel body, such that a first portion of the liquid basecoat permeates through the permeable reinforcing material and is received in a recessed space between the permeable reinforcing material and the recessed portion of the front surface, and a second portion of the liquid basecoat covers the permeable reinforcing material, thereby encapsulating the permeable reinforcing material.

16. The method of claim 15, further comprising forming the raised and recessed portions on the front surface of the panel body.

17. The method of claim 16, wherein forming the raised and recessed portions on the front surface of the panel body comprises one of embossing and wire cutting.

18. The method of any of claims 15-17, wherein applying the liquid basecoat to the front surface of the panel body comprises extruding the liquid basecoat onto the front surface of the panel body.

19. The method of any of claims 15-18, wherein adhering the permeable reinforcing material to the raised portion of the front surface comprises contact a self-adhesive layer of the permeable reinforcing material with the raised portion of the front surface.

20. The method of any of claims 15-19, wherein the insulative panel comprises the insulative panel of any of claims 1-14.

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