Gypsum Building Panels with Filamentous Scrim for Wind Uplift Resistance
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Solution Overview
Problem
Existing building construction panels, particularly roofing panels, face challenges with hail resistance, wind uplift resistance, and labor-intensive installation, leading to potential damage and increased costs due to improper sealing and weak construction assemblies.
Innovation Solution
The development of building panels incorporating a structural gypsum core with a filamentous scrim and a nonwoven mat facer, which enhances wind uplift resistance and hail resistance while allowing for reduced fastener usage and simplified installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional roofing panels are used, then installation is simpler, but wind uplift resistance and hail resistance are insufficient
Solution Approach 1:
The patent applies composite materials by combining gypsum core material with reinforcing elements (fiberglass mats, metal meshes, or organic fibers) to create a multi-layered panel structure. This composite construction provides enhanced wind uplift resistance and hail resistance while maintaining a manageable structural complexity through standardized layering and integration of components.
2Reliability
If more fasteners are used to improve wind uplift resistance, then panel security improves, but installation time and labor costs increase
Solution Approach 1:
The patent utilizes curved or contoured panel surfaces that are designed to interlock with corresponding grooves or channels in the roofing structure. This curved geometry enables mechanical interlocking that secures panels with fewer fasteners, reducing installation time while maintaining reliable attachment through the interlocking mechanism.
3Strength
If panel thickness is increased to improve hail resistance, then impact resistance improves, but weight and handling difficulty increase
Solution Approach 1:
The patent employs composite materials with high-strength reinforcing elements embedded in the gypsum core to achieve hail resistance without requiring increased panel thickness. The reinforcing fibers and meshes provide impact strength while maintaining a thin, lightweight panel construction that is easy to handle and install.
4Reliability
If precision installation is required to ensure proper sealing, then assembly strength improves, but labor intensity and installation complexity increase
Solution Approach 1:
The patent incorporates pre-formed sealing elements, gaskets, or adhesive layers integrated into the panel structure during manufacturing. These preliminary sealing actions eliminate the need for precise field installation techniques, allowing workers to achieve proper sealing through simple placement and reduction of installation complexity.
Data Source
AI summary
Building panels, assemblies of building panels, and associated methods are provided. A building panel includes a set gypsum core; optionally a filamentous scrim associated with the set gypsum core, said filamentous scrim comprising a mesh constructed of elongated yarns defining a plurality of openings therebetween; and a fibrous mat facer associated with the filamentous scrim. In the panel, the set gypsum core penetrates into at least one of the filamentous scrim or the fibrous mat facer; the panel displays a wind uplift resistance between 90 lb/ft2 and 300 lb/ft2 on a roofing assembly having from between four and six fasteners thereon; a total thickness of the panel is between ¼″ and ¾″; the set gypsum core encapsulates the elongated yarns of the filamentous scrim; and/or the panel has a weight ranging from about 1,400 lbs/msf to about 2,600 lb/msf.