COMBINATION LATH/RAINSCREEN ASSEMBLIES AND METHODS OF INSTALLATION AND MANUFACTURE
Aspects of the disclosure relate to lath/rainscreen assemblies including a sheet defining lath and rainscreen faces, first and second ends, and first and second sides. A plurality of protrusions extend from the rainscreen face and also optionally the lath face. The protrusions on the lath face in combination with the lath face provide a substrate for application of a stucco veneer. If no protrusions are provided on the lath face, the lath face can be secured to siding. The rainscreen face and protrusions of the rainscreen face collectively form channels through which moisture can drain to a weep screen or the like. Each of the lath face and the rainscreen face include area free of protrusions so that multiple lath/rainscreen assemblies can be secured to the structure in an overlapping fashion. Methods of installing and making lath/rainscreen assemblies are also disclosed.
This application claims the benefit of U.S. Provisional Application Ser. No. 62/772,740, filed Nov. 29, 2018, which is incorporated in its entirety herein by reference.
FIELDThe present technology is generally related to laths, rainscreens and methods of installation and manufacture.
BACKGROUNDDevelopments in the construction of buildings has generally resulted in “tighter” buildings, thus meaning there is less airflow leakage and between the interior and exterior of the building. As a result, “tighter” buildings have an increased risk for moisture and mold problems. Known rainscreen systems reduce the risk of moisture and mold damage by enabling moisture that has penetrated an exterior siding material to swiftly exit the building envelope.
The present disclosure addresses problems and limitations associated with the related art.
SUMMARYThe techniques of this disclosure generally relate to a combination lath and rainscreen provided in a single assembly. Various embodiments of the disclosure simplify installation as well as reduce labor costs and requirements. In addition, various embodiments of the disclosure are non-corrosive and are metal-free.
In one aspect, the present disclosure provides a lath/rainscreen assembly including a sheet or strip defining a lath face and a rainscreen face, a first end and a second end, and a first side and a second side. In one embodiment, the lath/rainscreen assembly further includes a plurality of protrusions extending from the lath face and the rainscreen face. The lath face includes a first area free of protrusions, the first area at least partially defined by the lath face, the first end, the second and the first side. The rainscreen face includes a second area free of protrusions, the second area at least partially defined by the rainscreen face, the first end, the second end and the second side. In an alternate embodiment, the lath face does not include any protrusions and is undisrupted, smooth or flat.
In another aspect, the disclosure provides a method of installation including providing a building including a wall supported by a frame having a plurality of beams. A water resistant barrier is secured to the wall. Also provided is a first lath/rainscreen assembly including a sheet made of extruded material having a lath face and a rainscreen face; wherein the rainscreen face includes a plurality of protrusions. The lath face can optionally also include protrusions. The method further includes positioning the rainscreen face of the lath/rainscreen assembly against the water resistant barrier such that the protrusions contact the water resistant barrier and inserting a fastener through the sheet and the water resistant barrier and into the wall. The method may also include securing a facade or veneer (e.g., siding, stucco or masonry) to the lath face. In situations where stucco is applied to the lath face, the lath face may include a plurality of protrusions to provide a structure to grip the stucco. Various methods may also include securing a plurality of lath/rainscreen assemblies together in an overlapping fashion on the wall.
The details of one or more aspects of the disclosure are set forth in the accompanying drawings and the description below. Other features, objects, and advantages of the techniques described in this disclosure will be apparent from the description and drawings, and from the claims.
As indicated by its name, each lath/rainscreen assembly 10 includes a sheet 12 having a lath face 14a and a rainscreen face 14b. The sheet 12 further includes first and second ends 16a, 16b as well as first and second sides 18a, 18b. The lath face 14a is installed exterior with respect to the rainscreen face 14b and supports a facade or veneer V (e.g., stucco, siding, masonry veneer including brick or stone, for example) applied the structure S. In some embodiments, a plurality of protrusions 20a (only a select few of which are referenced for ease of illustration) extend from the sheet 12 and form at least part of the lath face 14a. In one embodiment, the sheet 12 and protrusions 20a collectively serve as a substrate for adhered stucco or other veneer V. In various embodiments, the plurality of protrusions 20a are arranged to form a grid of linear intersecting channels 22, 24 oriented vertical, horizontal or diagonal with respect to the sheet 12 (only a few select channels are referenced for ease of illustration). In one illustrative embodiment, the intersecting channels 22, 24 each have a width of approximately ⅛ inch or more. The protrusions 20a can take a variety for forms as will be discussed in greater detail below. In the present example, the protrusions 20a include a stem 30 having a first end 32 and a second end 34. The first end 32 is secured to the sheet 12 and the second end 34 terminates at a head 36. The head 36 can be rectangular shaped, for example, and provides a structure onto which stucco can be applied for a more secure adherence or connection and provides a flat surface 38 on which the veneer V can be positioned. The flat surface 38 can be parallel to a plane defined by the sheet 12. The lath face 14a forms voids between the sheet 12 and the protrusions 20a, and the voids allow stucco to be received and retained therein. Because, in some embodiments, the protrusions 20a are larger proximate their distal ends, the stucco has a more secure connection thereto. In the illustrated embodiment the stem 30 is tapered to have a greater diameter at the first end 32 as compared to the second end 34. As best seen in
The rainscreen face 14b of the sheet 12 can be similarly configured to the lath face 14a and includes a plurality of protrusions 20b (only a select few of which are referenced for ease of illustration) extending from the sheet 12. As with the protrusions 20a, the protrusions 20b collectively define a plurality of linear, intersecting channels 40, 42 that serve as an air gap and pathways for water to flow via gravity to the weep screen S (
As indicated above, it is envisioned that multiple lath/rainscreen assemblies 10 can be applied to the structure S and will be positioned on the structure S to overlap so that there are no gaps in coverage along the water resistant barrier WRB. To enable the lath/rainscreen assemblies 10 to be positioned in an overlapping configuration without bulging and creating the potential for moisture ingress, one end 16a, 16b of each face 14a, 14b of the sheet 12 includes an area 50a, 50b that does not include protrusions 20a, 20b. In addition, the areas 50a, 50b that do not include protrusions 20a, 20b can be rounded around building corners for securing to the next beam B.
Optionally, the sheet 12 can include a plurality of apertures or perforations 52 (only a select few of which are referenced in
As previously stated, the protrusions 20a, 20b can take a variety of forms. In one alternate embodiment illustrated in
In another alternate embodiment illustrated in
In
In an additional embodiment illustrated in
It is recognized that other configurations of protrusions could be used and the examples provided herein should not be limiting.
Methods of installation the disclosed lath/rainscreen assemblies (e.g., lath/rainscreen assemblies 10, 10′) can include providing the building B including the wall W supported by the frame F having the plurality of beams B as is generally depicted in
As indicated above, the first lath/rainscreen assembly (e.g., lath/rainscreen assembly 10, 10′) can include an area free of protrusions 50a, 50b. With such a lath/rainscreen assembly, the method further includes the step of providing a second lath/rainscreen assembly (e.g., lath/rainscreen assembly 10, 10′) and securing the second lath/rainscreen assembly 10, 10′ on top of the area free of protrusions 50a, 50b. The step of securing the second lath/rainscreen assembly 10, 10′ can include inserting a fastener through the first lath/rainscreen assembly 10, 10, second lath/rainscreen assembly 10, 10′, and into wall W and frame F, perhaps at beam B.
In some embodiments, the method includes providing a weep screed WS and securing the weep screed WS between the wall W and the water resistant barrier WRB, adjacent one end 16b of the first lath/rainscreen assembly 10, 10′.
In one method, stucco V is secured/applied to the lath face 14a and is positioned between the protrusions 20a, 20b, within the channels 20, 22 and the sheet 12 on the lath face 14a. Such stucco V can be applied to the lath face 14a in any manner known for securing stucco to a known lath.
In some embodiments, methods of installing the disclosed lath/rainscreen assemblies 510 can include providing a building B including a wall W supported by a frame F having a plurality of beams B as is generally depicted in
In other various embodiments, the building or structure S includes a vented metal edge E and further wherein the lath/rainscreen assembly 510 is positioned on the water resistant barrier WRB such that the sheet 512 terminates at the vented metal edge E and is aligned with one beam B of the frame F.
Depending on the veneer V to be attached to the lath/rainscreen assembly 510, various methods include the step of securing siding V or the like to the lath face 514a. Siding panels V may extend between two or more lath/rainscreen assemblies 510 and can be secured to the lath/rainscreen assemblies 510 in any known manner.
Referring now also to
The rainscreen face 614b of the sheet 612 can be similarly configured to the lath face 614a and includes a plurality of protrusions 620b extending therefrom (only a select few of which are referenced for ease of illustration). As with the protrusions 620a, the protrusions 620b collectively define a plurality of linear, intersecting channels 640, 642 (a select few of which are referenced) that serve as an air gap and pathways for water to flow via gravity to the weep screen S (
As described above with respect to other embodiments, it is envisioned that multiple lath/rainscreen assemblies 610 can be applied to the structure S and will be positioned on the structure S to overlap so that there are no gaps in coverage along the water resistant barrier WRB. To enable the lath/rainscreen assemblies 610 to be positioned in an overlapping configuration without bulging and creating the potential for moisture ingress, one end 616a, 616b of each face 614a, 614b of the sheet 612 includes at least one area 650a-c that does not include protrusions 620a, 620b. In addition, the areas 650a-c that do not include protrusions 620a, 620b can be rounded around building corners for securing to the next beam B. In the illustrated example of
The lath/rainscreen assemblies disclosed herein can be manufactured in a variety of ways. In one method, the process begins with extruding a solid sheet of extruded material, such as plastic. In one implementation, the sheet of extruded material is a plastic material having fire resistant characteristics or high impact poly styrene, for example. In one embodiment, the solid sheet of extruded material is 33.5 inches by 8-12 feet by 9/16 inches. Forming the lath/rainscreen assembly from a non-metal extruded material is beneficial in that it results in a product that is generally easier to work with, does not corrode or disrupt electrical or other signals, can be made of a fire retardant material and can be rolled-up for shipping and storage. It could also serve as a fire retardant. Once the sheet is extruded, the protrusions can optionally be formed via cutting with router blades to result in the desired protrusion configuration. In addition, apertures or perforations 52, such as those shown in
It should be understood that various aspects disclosed herein may be combined in different combinations than the combinations specifically presented in the description and accompanying drawings. It should also be understood that, depending on the example, certain acts or events of any of the processes or methods described herein may be performed in a different sequence, may be added, merged, or left out altogether (e.g., all described acts or events may not be necessary to carry out the techniques).
Claims
1-20. (canceled)
21. A combination lath/rainscreen assembly, comprising:
- a sheet defining a lath face and a rainscreen face, a first end and a second end, and a first side and a second side, the sheet having a uniform thickness; and
- a plurality of protrusions extending from the lath face and from the rainscreen face;
- wherein the rainscreen face and the plurality of protrusions extending from the rainscreen face form a rainscreen void configured and arranged to serve as an air gap and as a pathway for water flow;
- wherein the lath face and the plurality of protrusions extending from the lath face form a lath void configured and arranged to receive a veneer material and wherein the plurality of protrusions extending from the lath face are configured and arranged to provide a secure connection for the veneer material when the veneer material is received in the lath void about the plurality of protrusions extending from the lath face.
22. The combination lath/rainscreen assembly of claim 21, wherein the lath face includes a first area free of protrusions, the first area at least partially defined by the lath face, the first end, the second end, and the first side, and wherein the rainscreen face includes a second area free of protrusions, the second area at least partially defined by the rainscreen face, the first end, the second end, and the second side.
23. The combination lath/rainscreen assembly of claim 22, wherein when two or more assemblies are installed, the first area of one assembly overlaps with the second area of another assembly.
24. The combination lath/rainscreen assembly of claim 21, wherein each protrusion includes a stem and a head.
25. The combination lath/rainscreen assembly of claim 24, wherein the head defines a flat engagement surface.
26. The combination lath/rainscreen assembly of claim 25, wherein the flat engagement surface is parallel with respect to a plane defined by the sheet.
27. The combination lath/rainscreen assembly of claim 24, wherein the stem has a first end and a second end, the first end being operatively connected to the sheet and the second end being operatively connected to the head.
28. The combination lath/rainscreen assembly of claim 24, wherein the stems define a plurality of peaks and channels forming the lath and rainscreen voids.
29. The combination lath/rainscreen assembly of claim 24, wherein the stem is tapered.
30. The combination lath/rainscreen assembly of claim 24, wherein, with respect to each of the plurality of protrusions, a maximum width of the head is greater than a maximum width of the stem.
31. The combination lath/rainscreen assembly of claim 21, wherein the sheet and the plurality of protrusions are made of an extrudable material.
32. The combination lath/rainscreen assembly of claim 21, wherein the plurality of protrusions are configured to form linear intersecting channels.
33. The combination lath/rainscreen assembly of claim 21, wherein the sheet includes a plurality of apertures.
34. The combination lath/rainscreen assembly of claim 21, wherein the plurality of protrusions include distal ends and are larger proximate the distal ends.
35. The combination lath/rainscreen assembly of claim 21, wherein the veneer material is a stucco material.
36. The combination lath/rainscreen assembly of claim 21, wherein the lath face and the rainscreen face are interchangeable.
37. The combination lath/rainscreen assembly of claim 36, wherein the plurality of protrusions extending from the lath face and from the rainscreen face are identical.
Type: Application
Filed: Nov 27, 2019
Publication Date: Dec 30, 2021
Inventor: John H. Koester (Payson, AZ)
Application Number: 17/291,074