Hook and Loop Roofing Fabric for Slate Attachment
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Solution Overview
Problem
Existing roofing systems for affixing slate to buildings are expensive in terms of materials and labor, and traditional methods such as nailing, screwing, or using cumbersome hook and rail systems are inflexible and prone to errors, leading to breakage and inefficiencies in installation.
Innovation Solution
A roofing system utilizing a self-adhesive hook and loop fastener fabric, where the fabric serves as a moisture barrier and mechanical fastening system, allowing for easy attachment and detachment of slate tiles, reducing labor costs and enabling flexible installation patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional nailing or screwing methods are used to affix roofing slate, then the slate can be securely attached to the roof, but the installation becomes expensive in terms of materials and labor, and the slate is prone to breakage due to improper fastening depth
Solution Approach 1:
The patent introduces an intermediary fabric sheet with adhesive backing that is first attached to the roof decking, which then serves as a base for securing the slate tiles. This intermediary layer distributes the attachment forces and eliminates the need for direct nailing or screwing into the slate, thereby reducing breakage risk and installation complexity while maintaining secure attachment
Solution Approach 2:
The patent replaces the traditional mechanical fastening system (nails or screws requiring precise depth control) with an adhesive-based mechanical system using hook and loop fasteners on the fabric sheet. This substitution eliminates the need for over-nailing or under-nailing, as the adhesive system provides uniform attachment without protruding heads that could break the slate
2Reliability
If hook and rail systems are used to attach roofing slate, then the slate can be secured to the roof, but the system becomes cumbersome and requires considerable labor for installation
Solution Approach 1:
The patent extracts the complex hook and rail system and replaces it with a simplified fabric sheet that integrates the fastening function directly into the attachment layer. The fabric sheet with adhesive backing and hook fasteners eliminates the need for separate rail components, reducing installation labor and complexity while maintaining secure attachment
Solution Approach 2:
The patent merges the functions of the fabric sheet, adhesive layer, and hook fasteners into a single integrated component. This consolidation eliminates the need for multiple separate components (fabric sheet, adhesive, hooks, rails) that required considerable labor to assemble, while maintaining reliable attachment security
3Reliability
If rigid hook and rail systems or tracked systems are used for roofing installation, then the slate can be securely fastened, but the system lacks flexibility to adapt to varying field conditions or design changes during installation
Solution Approach 1:
The patent introduces dynamic flexibility by using an adhesive-based fabric sheet system that can be easily repositioned and adjusted during installation, unlike rigid hook and rail systems. The adhesive allows for minor adjustments and repositioning, enabling adaptation to varying field conditions and design changes while maintaining secure fastening
Solution Approach 2:
The patent changes the attachment parameter from rigid mechanical connection (hooks in preset patterns) to adhesive bonding, which allows for continuous adjustment during installation. This parameter change enables flexibility in tile placement and pattern adjustment while maintaining reliable attachment, accommodating varying field conditions and design modifications
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
The hook and loop system significantly reduces installation time and material costs, allows for adaptable tile placement, and eliminates the risk of breakage associated with traditional nailing methods, while providing a waterproof membrane with reduced weight and labor requirements.
Implementation Method 1
the lower surface is configured to be attached to a roof decking
Implementation Method 2
the upper surface comprises one of a hook and loop fastener and the lower surface is configured to be attached to a roof decking; the other of the hook and loop fastener is attached to the bottom surface
Data Source
AI summary
A system and method of roofing. The present invention includes a fabric sheet having an upper surface and a lower surface. The upper surface includes one of a hook and loop fastener and the lower surface is configured to be attached to a roof decking. The present invention further includes a plurality of tiles each having an upper edge, a lower edge, a top surface, and a bottom surface. The other of the hook and loop fastener is attached to the bottom surface. The plurality of tiles are releasably attached to the upper surface of the fabric sheet via the hook and loop fasteners.