Gypsum Wallboard Fastener Layout for Fire-Resistant Assemblies
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wallboards and wallboard assemblies lack sufficient fire resistance, particularly when exposed to high temperatures, necessitating improved fire resistance properties.
Innovation Solution
A wallboard assembly comprising a gypsum panel with specific fastener configurations, including field and perimeter fasteners spaced at least 12 inches on center, enhancing fire resistance to achieve a rating of at least 50 minutes in ASTM standard E119-16a tests.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional fastener configurations are used, then fire resistance is improved, but manufacturing cost and labor time increase
Solution Approach 1:
The patent changes the spacing parameter of fasteners from traditional closer spacing to greater than 12 inches on center spacing, while maintaining fire resistance rating of at least 50 minutes. This parameter change reduces the number of fasteners needed, thereby reducing labor time and manufacturing cost without compromising fire resistance.
2Reliability
If traditional fastener configurations are used, then fire resistance is improved, but manufacturing cost increases
Solution Approach 1:
The patent modifies the fastener spacing parameter to greater than 12 inches on center, which reduces the total number of fasteners required per wallboard assembly. This reduction directly lowers material costs and installation costs, improving ease of manufacture while maintaining the required fire resistance performance.
3Productivity
If fastener spacing is increased, then productivity is improved, but fire resistance may deteriorate
Solution Approach 1:
The patent identifies and implements the optimal parameter range for fastener spacing (greater than 12 inches on center) that simultaneously achieves both goals: reducing labor time through fewer fasteners while maintaining fire resistance of at least 50 minutes. This resolved the contradiction by finding the right parameter value that satisfies both constraints.
Data Source
AI summary
The present invention is directed to wallboard assemblies containing a gypsum panel and a method of making such wallboard assemblies. In one embodiment, the wallboard assembly comprises a gypsum panel containing a gypsum core and at least one facing material. The wallboard assembly and/or the gypsum panel may be fire resistant. The methods of the present invention are directed to making the aforementioned wallboard assemblies.