Sealing wall fastener assembly
12595653 ยท 2026-04-07
Assignee
Inventors
- Jason R. Wigboldy (Grand Rapids, MI, US)
- Mitchell B. Mahler (Grand Rapids, MI, US)
- David A. Boyd (Grand Rapids, MI, US)
Cpc classification
E04B1/7633
FIXED CONSTRUCTIONS
E04B1/7637
FIXED CONSTRUCTIONS
International classification
E04B5/00
FIXED CONSTRUCTIONS
E04B1/41
FIXED CONSTRUCTIONS
Abstract
A wall fastener assembly for retaining an attachment such as a girt alongside or near a wall includes an elongated shank that provides space for at least one intermediate wall layer between the girt and a supportive member such as a stud. A center bore extends through the wall fastener assembly, and may receive a fastener for securing the wall fastener assembly to the wall. Once the wall fastener assembly is secured to the wall, a proximally-located flange and a distal end of the shank bottom-out on different surfaces to ensure the attachment is properly mounted to the wall, and a distally-located sealing portion engages with an intermediate wall layer to form a fluid barrier within the wall.
Claims
1. A wall system, said wall system comprising: a wall fastener assembly comprising a unitary, non-metallic elongated shank and a threaded fastener that is longer than said shank, wherein said threaded fastener includes a head and a threaded end opposite said head, and wherein said shank includes a flange located at a proximal portion, a center bore extending along a length of said shank through which said threaded fastener is disposed, and a distal end opposite said flange, and wherein said shank defines a solid wall about said center bore; an internal supportive wall member comprising a substrate; at least one intermediate layer, said at least one intermediate layer comprising an insulation layer; a wall attachment, said wall attachment including a mounting hole; wherein said wall fastener assembly is disposed through said mounting hole of said wall attachment with said threaded end of said threaded fastener engaged with said substrate and said distal end of said shank pressed against said substrate to form a seal, and with said at least one intermediate layer disposed between said substrate and said wall attachment; wherein said shank provides a space for said at least one intermediate wall layer between said substrate and said wall attachment; and wherein said flange engages with said wall attachment at said mounting hole.
2. The wall system of claim 1, wherein said head of said threaded fastener engages with said flange on an opposite side of said flange from the engagement of said flange with said wall attachment.
3. The wall system of claim 1, wherein said shank includes at least one additional flange, and wherein adjacent pairs of said flanges are spaced apart by a groove disposed therebetween.
4. The wall system of claim 1, wherein said distal end of said shank forms a seal against said substrate.
5. The wall system of claim 1, wherein said shank defines an axial portion having an outer shank diameter and further comprises a sealing portion on said axial portion that is unitarily formed with said shank and defines a diameter that is greater than said outer shank diameter.
6. The wall system of claim 5, wherein said at least one intermediate layer further comprises a weather barrier sheet and an internal wall layer, wherein said weather barrier sheet is disposed between said insulation layer and said internal wall layer and said internal wall layer is disposed between said substrate and said weather barrier sheet, and wherein said sealing member is disposed at the weather barrier sheet when said threaded fastener has secured said wall fastener assembly to said substrate.
7. The wall system of claim 6, wherein said sealing portion comprises a tapered wedge seal having a proximal wedge portion with a proximal wedge diameter that is larger than said outer diameter of said shank, wherein said wedge seal extends circumferentially around said shank.
8. The wall system of claim 7, wherein said tapered wedge seal further comprises a distal wedge portion, and wherein when said wall fastener assembly is secured to the substrate, said proximal wedge portion is located on an external side of said weather barrier sheet, and said distal wedge portion is located on an internal side of said barrier sheet.
9. The wall system of claim 5, wherein said sealing portion comprises a frustoconical-shaped portion.
10. The wall system of claim 1, wherein said wall attachment is a girt channel having a mounting flange that includes said mounting hole.
11. The wall system of claim 10, wherein a length of said shank is substantially equivalent to the combined thickness of said mounting flange, said insulation layer, said weather barrier sheet, and said internal wall layer.
12. The wall system of claim 10, wherein said girt channel comprises a hat channel and includes another said mounting flange, and wherein said another mounting flange comprises a mounting hole for receiving another said wall fastener assembly.
13. The wall system of claim 1, wherein said shank has a tapered shaft portion terminating at said distal end.
14. The wall system of claim 1, wherein said substrate comprises a stud.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
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DESCRIPTION OF THE PREFERRED EMBODIMENTS
(11) Referring to the drawings and the illustrative embodiments depicted therein, exemplary wall system fastener assemblies for fastening or securing various wall coverings, claddings, and other wall attachments to wall systems are discussed herein. Wall coverings, claddings, and wall attachments may include various masonry veneers and girt systems. For example, with references to
(12) Hat channel 20 includes a pair of mounting portions or flanges 52a, 52b that are configured to mount substantially flat along the face of insulation layer 32. Mounting holes 34 are spaced uniformly along the length of mounting flanges 52a, 52b, and extend through mounting flanges 52a, 52b to provide locations for receiving a plurality of wall fastener assemblies 24 to secure hat channel 20 to wall system 22. The elongate outer edges of the mounting flanges 52a, 52b may be chamfered, rounded or eased so as to inhibit tearing of insulation layer 32. Hat channel 20 additionally includes a plurality of ventilation holes 54 along a pair of elongate legs 56a, 56b that provide locations for drainage or ventilation as necessary. For example, ventilation holes 54 may be uniformly spaced at one inch (1) intervals along the legs 56a, 56b. Hat channel 20 provides a location at which additional cladding or building materials can be secured to wall system 22, such as to optional face holes 64 of elongate face 58 (
(13) With further reference to
(14) Flange 40 is generally disc-shaped and is configured to constrain the movement of wall fastener assembly 24 relative to wall system 22, and also to constrain the movement of screw 26 relative to wall fastener assembly 24. Specifically, as a threaded and tapered screw end 36a of screw 36 is driven into stud 28, a screw head 36b of screw 36 is pulled into contact with a proximal surface 40a of flange 40. Screw head 36b has a larger diameter than that of bore 38 of wall fastener assembly 24, and is thus prevented or inhibited from entering or being received by bore 38. Accordingly, as screw 36 is tightened, screw head 36b compresses against flange 40 to thereby compress and sandwich flange 40 between an outer surface of mounting flange 52a and screw head 36b, such that proximal surface 40a of flange 40 engages with screw head 36b, and a distal surface 40b of flange 40 engages with mounting flange 52a. Flange 40 may be deformed as it is compressed in this fashion to form a fluid-tight barrier between screw head 36b and mounting flange 52a. Flange 40 is rigid enough to maintain sufficient structural integrity as it bottoms-out against mounting flange 52a to thereby prevent wall fastener assembly 24 from being pulled or forced through mounting hole 34. As such, flange 40 provides a counteractive force to inhibit screw 36 from being overdriven into wall system 22, thus reducing the likelihood of screw 36 from damaging wall system 22. It should be appreciated that a flange may have varying thicknesses and varying diameters. For example, a flange may have an increased thickness to increase its rigidity and/or strength to thus reduce the extent of deformation and crushing of the flange when the flange bottoms-out. A flange may also have a larger or smaller diameter to allow a wall fastener assembly to accommodate mounting holes of different shapes or sizes.
(15) With particular reference to the illustrated embodiment of
(16) As previously noted, distal portion 48 of wall fastener assembly 24 includes sealing portion 42 and tapered portion 50 that terminates at distal end 24a. Distal portion 48 is located on a penetrating side or end of wall fastener assembly 24opposite proximal portion 46 located on a non-penetrating side or end of wall fastener assembly 24and is drivable through intermediate wall layers 60 of wall system 22. A proximal end 50a of tapered portion 50 has a diameter that is equivalent to shank diameter 44b, in which the diameter of tapered portion 50 gradually decreases distally such that at distal end 24a, the diameter of tapered portion 50 is less than that of shank diameter 44b, and is only slightly larger than central bore 38. The sharpened or pointed geometry of tapered portion 50 enables wall fastener assembly 24 to cut or pierce through intermediate layers 60 rather than auguring through intermediate layers 60 to thereby lessen or mitigate damage to intermediate layers 60 during installation of wall fastener assembly 24 to wall system 22. Alternative tapered portions may be longer or shorter, and may have a tapered geometry that is more aggressively or gradually tapered apart from what is shown in the illustrated embodiment.
(17) A distal shank portion 44a is located between tapered portion 50 and sealing portion 42, and is of a length that properly positions sealing portion 42 within wall system 22 such that sealing portion 42 can engage with weather barrier 26 to form a fluid-tight seal between wall fastener assembly 24 and weather barrier 26. An alternative wall fastener assembly may include a distal shank portion that is shorter or longer than distal shank portion 44a, or may include no distal shank portion at all depending on the optimal location of a sealing portion on a shank, which is determined based on the characteristics of a wall system that a wall fastener assembly is to be secured to. Specifically, the length of a distal shank portion should be such that a sealing portion is located on a shank to engage a fluid barrier once a flange and/or distal end of a wall fastener assembly has bottomed-out. It should be appreciated that a tapered portion could take the place of a distal shank portion, such that a shank would have a continuous taper between a distal end of a sealing portion and a distal end of a wall fastener assembly.
(18) Sealing portion 42 has a frustoconical, or tapered geometry in the form of wedge gasket or seal 62, and is positioned towards and/or incorporated into or at a distal portion 48 of wall fastener assembly 24 to provide an air, fluid, and/or vapor seal between wall fastener assembly 24 and weather barrier 26. Wedge seal 62 extends around shank diameter 44b and includes a wide portion or proximal wedge portion 62a having a proximal wedge diameter that is larger than shank diameter 44b, and is tapered inwardly toward shank 44 towards a distal wedge portion 62b, or relative to the insertion direction of wall fastener assembly 24 into wall system 22. That is, the proximal wedge portion 62a is wider than distal wedge portion 62b. In the illustrated embodiment, distal wedge portion 62b terminates in a diameter that is equal to shank diameter 44b.
(19) As noted above, edge seal 62 is positioned and/or shaped along the length of shank 44 based on the location of weather barrier 26, and is located such that when wall fastener assembly 24 is secured to wall system 22, proximal wedge portion 62a is located on an external or outer side of weather barrier 26, and distal wedge portion 62b is located on an internal or inner side of weather barrier 26. In the illustrated embodiment, weather barrier 26 is affixed to an external or outer side of gypsum layer 30, in which gypsum layer 30 is secured to stud 28. Therefore, the location of wedge seal 62 along shank 44 in the illustrated embodiment is primarily determined by the thickness of gypsum sheathing 30. As a result, wedge seal 62 is positioned at weather barrier 26 when distal end 24a of wall fastener assembly 24 is pressed against or bottoms-out against stud 28.
(20) Due to the wedge/conical shape of wedge seal 62 described above, a fluid and/or vapor seal is created and maintained between wedge seal 62 and weather barrier 26 as screw 36 is driven into stud 28. This is because the tapered or wedge shape of wedge seal 62 causes wedge seal 62 to wedge and compress itself into/through weather barrier 26 as wall fastener assembly 24 is driven into/through intermediate layers 60 of wall system 22. Accordingly, the hole created through weather barrier 26 due to the insertion of wall fastener assembly 24 is substantially equivalent to the outer diameter of wedge seal 62 located adjacent weather barrier 26, such that a tight or close-fitting connection or coupling is formed and/or maintained between the outer surface of wedge seal 62 and weather barrier 26. As such, the integrity of weather barrier 26 to prevent or inhibit vapors and/or fluids from passing further into wall system 22 is maintained.
(21) As illustrated in
(22) Screw 36 may be driven into wall system 22 via any available driver means, such as an electric drill equipped with a screwdriver bit. Other means for driving screw 36 into wall system 22 may also be used. It is also noted that such an arrangement that makes use of a conventional screwdriver bit is an advantage over conventional wall anchors which often require the use of a proprietary chuck adapter that is configured to receive such wall anchors. Such an arrangement may also require the entire anchor to spin when the anchor is attached to a wall or substrate, thus potentially damaging portions of wall system 22, such as insulation layer 32 or gypsum layer 30.
(23) Wall fastener assembly 24 is configured to reduce thermal transfer through wall system 22 at screw 36, with the materials for wall fastener assembly 24 being preferably chosen to maximize energy efficiency and reduce energy transfer. As such, the rigid material of shank 44 may be, for example, a resinous plastic, such as polycarbonate or a fiber reinforced plastic. Additionally, in an alternative embodiment, an O-ring, a gasket, or other sealing or crush ring (not shown) may optionally be disposed at distal side 40b of flange 40, where such a crush ring contacts and compresses against mounting flange 52a to further promote sealing between flange 40 and hat channel 20.
(24) As previously noted, a wall fastener assembly may vary in a number ways depending on the unique characteristics of a wall system and/or an attachment being secured to a wall system. In this regard, a wall system may further include additional intermediate layers, or may have the same or similar intermediate layers as wall system 22, but arranged in a different order or being of varying thicknesses. For example, a layer of gypsum could be of a greater thickness than gypsum layer 30, in which case a sealing portion would be located further from a distal end of a wall fastener assembly to correspond with the location of a fluid barrier affixed to the external side of the gypsum layer, and the shank length would be increased to ensure the distal end and a flange each bottom-out after a screw has been driven into a supportive member a desired distance.
(25) Referring now to the illustrated embodiment of
(26) A cladding anchor in the form of a masonry tie or wire tie 170 (
(27) During construction, wire tie 170 may be slipped over and into either groove 168a, 168b with a single hand to thereby secure wire tie 170 to wall fastener assembly 124. Once secured to wall fastener assembly 124, portions of legs 178 and/or tips 180 may be disposed in a wet mortar joint between two rows of bricks or the like of an outer structure or masonry veneer. Wire tie 170 may also be rotated or moved approximately 1.25 inches above or 1.25 inches below head 36b of screw 36, thus ensuring that wire tie 170 can be properly placed into a wet mortar joint while wire tie 170 remains secured to wall fastener assembly 124. In addition to being secured to wall fastener assembly 124, once the wet mortar cures and/or hardens around portions of legs 178 and/or tips 180, wire tie 170 becomes more fully secured to the masonry veneer. Accordingly, the masonry veneer becomes secured to an inner wall structure such as wall system 20 via engagement of wall fastener assembly 124 with wall system 20 and wire tie 170 with wall fastener 124. Additionally, extension legs 178 of wire tie 170 allows for the securement of the masonry veneer to wall system 20 while also leaving an insulative air gap between the masonry veneer and wall system 20. Accordingly, an outer masonry veneer may be secured to an inner wall structure via multiple wall fastener assemblies 124 disposed at locations corresponding to supportive members or structures, for example stud 28 of wall system 20, and a mortar joint of the masonry veneer.
(28) Extension legs 178 are configured to extend from narrow throat 172 toward the masonry veneer when wire tie 170 is mounted to wall fastener assembly 124 such that portions of legs 178 and/or tips 180 are disposed in and coplanar with a mortar joint. Extension legs 178 have an extension length defined from narrow throat 172 to tips 180. The extension length may be chosen as a function of various factors, including the width of the masonry veneer and the desired penetration of wire tie 170 into the masonry veneer, as well as the desired air gap between the masonry veneer and wall system 20. In this regard, the multiple flanges 140a-c of wall fastener assembly 124 enable wire tie 170 to be secured to wall fastener assembly 124 at either groove 168a, 168b as desired, for example, to accommodate the width of the masonry veneer and/or air gap between the masonry veneer and an inner wall. Additionally, wall fastener assembly 124 may also better accommodate masonry ties of different lengths, shapes, and/or sizes due to wall fastener assembly 124 having multiple locations at which a masonry tie may be secured. It should be appreciated that a wall fastener assembly may have additional flanges and grooves to allow for further locations at which a masonry tie or the like may be secured to the wall fastener assembly. Furthermore, a wall fastener assembly may have flanges and/or grooves that are larger or smaller apart from what is shown in the illustrated embodiment.
(29) Referring now to the illustrated embodiment of
(30) Like wall fastener assembly 124, wall fastener assembly 224 may be used to secure a masonry anchor to an internal wall structure, where the anchor is also securable to an outer masonry veneer or wall structure to thereby secure the masonry veneer to the internal wall structure. For example, a masonry anchor in the form of a plate anchor, such as plate anchor 282 (
(31) Plate anchor 282 may be secured to wall fastener assembly 224 at any one of grooves 268a-d by sliding large opening area 284a over one or more flanges 240a-e, and then allowing small opening area 284b to rest or become nested/secured at one of grooves 268a-d. After plate anchor 282 is secured to wall fastener assembly 224 at a desired groove 268a-d, outer securing portion 288 may then be positioned in a mortar joint, such as a mortar joint between one or more adjacent stones or rocks. Once positioned in the mortar joint, wet mortar may ooze or otherwise move through one or more holes 290. Plate anchor 282 becomes more fully secured to the masonry veneer as the mortar cures and/or hardens around at least a portion of outer securing portion 288. Once plate anchor 282 is secured to both wall fastener assembly 224 and the masonry veneer, the masonry veneer will be secured to an inner wall structure, such as wall system 20, via plate anchor 282 and wall fastener assembly 224. Additionally, because wall fastener assembly 224 provides multiple flanges and grooves, plate anchor 282 may be selectively secured to wall fastener assembly 224 at any groove 268a-d as desired, for example, to accommodate the width of the masonry veneer and/or air gap between the masonry veneer and an inner wall. Additionally, the multiple securing locations for a cladding anchor provided by wall fastener assembly 224 allows wall fastener assembly 224 to accommodate other cladding anchors having alternative shapes and sizes.
(32) With reference to
(33) Inner securing portion 386 of plate anchor 382 may be secured to wall fastener assembly 224 at any one of grooves 268a-d in a similar or identical fashion as described above with regard to plate anchor 282. Outer securing portion 388 of plate anchor 382 may also be secured at a mortar joint of a masonry veneer in a similar fashion to outer securing portion 288 of plate anchor 282 described above. However, rather than oozing or moving through a series of holes, wet mortar moves through inner open area 398 before curing and/or hardening to thereby secure outer securing area 388 at the mortar joint, and thus securing the masonry veneer to an internal wall structure via plate anchor 382 and wall fastener assembly 224. It should be appreciated that a cladding anchor may take alternative forms apart from what has been described above.
(34) Changes and modifications in the specifically described embodiments can be carried out without departing from the principles of the present invention which is intended to be limited only by the scope of the appended claims, as interpreted according to the principles of patent law including the doctrine of equivalents.