Louisiana-Pacific has been granted a patent for an integrated joint sealing system incorporated into the edges of a sheathing panel. The system includes a flexible gasket material applied to the joints, providing a weather resistive seal to limit water and air penetration. The patent also covers a method of making a self-sealing panel product using this system. GlobalData’s report on Louisiana-Pacific gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Louisiana-Pacific, structure Building Framework was a key innovation area identified from patents. Louisiana-Pacific's grant share as of September 2023 was 28%. Grant share is based on the ratio of number of grants to total number of patents.
Integrated joint sealing system for sheathing panels
A recently granted patent (Publication Number: US11739522B1) describes a method for manufacturing a self-sealing panel product. The method involves several steps to create a panel with enhanced water and air resistance.
The process begins by providing a sheathing panel made of wood-based material, which has a front face, back face, and opposing edges. The first and third edges are machined to create a joint section, while the second and fourth edges are machined to form another joint section that can mate with the first joint section.
In a factory setting, a first self-sealing material is bonded to the faces of the first joint sections, and a second self-sealing material is bonded to the faces of the second joint sections. These self-sealing materials are designed to create a water-resistant and air-resistant bond when in contact.
Additionally, a portion of the front face adjacent to the first and third edges is bonded with a third self-sealing material. This further enhances the panel's sealing properties. The patent mentions that the first and second self-sealing materials can be the same or different, and the same applies to the first, second, and third self-sealing materials.
The method also includes the option of applying a weather resistive barrier to the front face of the panel. This barrier provides additional protection against external elements.
The patent mentions that the first self-sealing material is configured to seal the head and shaft of metal fasteners that penetrate through it. This feature ensures that the panel remains sealed even when fasteners are used.
The patent also highlights that the method can be applied to different types of sheathing panels, such as wall panels or roofing panels. The sheathing panel itself can be made of oriented-strand board or plywood.
In summary, this granted patent describes a method for manufacturing a self-sealing panel product with enhanced water and air resistance. The method involves bonding self-sealing materials to joint sections and the front face of the panel, as well as the option of applying a weather resistive barrier. The resulting panel can be used in various applications, including walls and roofs.
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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.
GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
