Sheathing Panel Barrier Overlay Anti-Skid Coating
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Solution Overview
Problem
The manufacturing of sheathing panels with pre-assembled weather-resistant barriers faces challenges such as complex production processes and the need for skid-resistant surfaces that wear out over time, leading to reproducibility issues and water ponding problems.
Innovation Solution
The development of sheathing panels with a barrier overlay applied after panel formation, featuring a water-resistant coating and an anti-skid coating that provides a reproducible coefficient of friction without embossing or texturizing, and the use of corner sealing tapes with a 'living hinge' for easy installation and airtight sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a barrier material is applied to panels during manufacture, then the panels are easily installed on building exterior, but the production process becomes complex and skid-resistant surfaces wear out over time
Solution Approach 1:
The barrier material is segmented into a separate overlay layer that is applied after panel formation, rather than being integrated into the panel manufacturing process. This allows the panel to be manufactured independently with simple processes, while the barrier overlay is applied separately to provide weather resistance without complicating the core panel production.
Solution Approach 2:
The barrier overlay is applied after the panel is fully formed and prepared, rather than during the panel manufacturing process. This preliminary action sequence ensures that the panel structure is complete and stable before the barrier material is added, simplifying the overall production process while maintaining ease of installation.
2Ease of operation
If embossing or texturizing is used to provide skid resistance, then the surface provides friction, but the surfaces wear out over time and are not reproducible
Solution Approach 1:
Instead of changing the physical surface geometry through embossing or texturizing, the invention changes the material parameters by applying a coating layer with specific friction properties. This coating approach provides skid resistance through material composition rather than surface deformation, resulting in more durable and reproducible results that do not wear out as quickly.
3Productivity
If panels are installed without proper sealing at joints, then installation is simpler, but water ponding occurs and weather protection is compromised
Solution Approach 1:
The barrier overlay is merged with sealing elements that are integrated into the panel edges or joint configuration. This combination allows the sealing function to be incorporated into the panel system itself, ensuring proper water shedding at joints without requiring separate complex sealing operations that would slow down installation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach allows for high-yield production of panels with improved skid resistance and reduced water ponding, ensuring a durable and reproducible seal between panels, enhancing the panels' water and air barrier properties.
Implementation Method 1
The sheathing panel is bulk water resistant
Implementation Method 2
a water vapor transmission rate of at least 7.0 grams per square meter per 24 hours
Implementation Method 3
The barrier overlay may be attached to the panel with an adhesive
Implementation Method 4
an anti-skid coating that provides a reproducible coefficient of friction
Data Source
AI summary
A sheathing panel includes a barrier overlay secured to a panel; wherein the sheathing panel is bulk water resistant and has at least one of the following properties: a water vapor transmission rate of at least 7.0 grams per square meter per 24 hours (grams/m2/24 hours) as determined by ASTM E96-15 procedure A at 73° F. and 50% relative humidity (RH), a water vapor permeance of at least 1.3 perms as determined by ASTM E96-15 procedure A at 73° F. and 50% relative humidity (RH), or an air infiltration rate of less than 0.2 liters per second per square meter (L/s-m2) at 75 pascals (Pa) as determined by ASTM E2357-11.