Roofing System Rain Diverting Device Single Lap Tiling
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Solution Overview
Problem
Existing roofing systems, particularly those using natural stone tiles, are expensive, labor-intensive, and inefficient in material usage, with double or triple overlaps increasing deadload and material costs, and traditional fastening methods are prone to breakage and rigidity issues.
Innovation Solution
A roofing system utilizing a rain diverting feature with hook and loop fasteners and a rain diverting device that allows for single overlap, reducing material usage and weight, and uses a detachable fastening system for easier installation and adaptability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If double or triple overlap of natural stone roofing tiles is used to prevent rainwater entry, then water protection is improved, but deadload on the roof structure increases
Solution Approach 1:
The patent extracts the rainwater diversion function from the tile overlap structure itself and implements it through a separate integrated rain diverting device attached to the tile edge. This allows single overlap to be sufficient, removing the need for double or triple overlap and thereby reducing the deadload on the roof structure while maintaining water protection
Solution Approach 2:
The rain diverting device acts as an intermediary element between the tile and the underlying sheet material, creating a channel that directs rainwater away from the separation between adjacent tiles. This mediator enables effective water diversion with minimal tile overlap, reducing the weight burden on the roof structure
2Object-affected harmful factors
If double or triple overlap of roofing tiles is used to prevent rainwater entry, then water protection is improved, but material costs increase
Solution Approach 1:
The patent extracts the water diversion function from the tile overlap requirement and implements it through an integrated rain diverting device, enabling single overlap to provide adequate protection. This reduces the quantity of tile material needed and lowers material costs
Solution Approach 2:
The rain diverting device integrates multiple functions: it diverts rainwater away from tile separations, provides a fastening mechanism for single overlap installation, and protects the underlying sheet material. This multi-functionality achieves water protection with minimal material usage
3Stability of the object's composition
If nailing or screwing slate to the roof is used for fastening, then tile fixation is improved, but the risk of breakage increases
Solution Approach 1:
The patent replaces the traditional mechanical fastening system (nails or screws that risk breaking slate) with a hook and loop fastener system. The loop fastener attaches to the back of the tile without penetrating it, eliminating breakage risk while maintaining secure fixation through the rain diverting device
4Stability of the object's composition
If hook and rail systems or clamping track systems are used for fastening, then tile fixation is improved, but device complexity and labor requirements increase
Solution Approach 1:
The patent segments the fastening function into simple components: a hook fastener attached to the rain diverting device and a loop fastener on the underlying sheet material. This segmented approach replaces complex hook and rail systems or clamping track systems, reducing device complexity and labor requirements while maintaining secure tile fixation
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 system reduces material costs and weight, enhances installation efficiency, and allows for flexible tile placement, overcoming the limitations of traditional roofing methods by providing a cost-effective and lightweight solution.
Implementation Method 1
Each of the plurality of tiles further includes a rain diverting device having a width extending beyond a side-edge of the tile and releasably adhered to the hook and loop fastener located on the side-edge portion of each tile
Implementation Method 2
a rain diverting feature for directing rainwater and snowmelt away from an underlying sheet material and/or roof deck
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
A lighter, more cost-effective roofing system and method, which includes a rain diverting feature for directing rainwater and snowmelt away from an underlying sheet material and roof deck, is provided. The invention includes a sheet material 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 the roof deck. The present invention further includes a plurality of roofing tiles, each tile having hook and loop fasteners adhered to a back face which extend along the width of the file at or near the uppermost and lowermost edges. Each rain diverting feature, which is a strip-like device with one surface made up of a plurality of hook portions and an opposing surface made up of a plurality of portions complementary to the hook portions, is positioned between and releasably attached to the hook and loop fasteners located on a side-edge portion of two adjacent files and the underlying sheet material, thereby releasably attaching the tiles to each other and to the upper surface of the underlying sheet material. The use of rain diverting devices to direct rainwater and snowmelt away from the underlying sheet material and roof deck allows for single lap tiling and thus less weight on the roof deck. It also allows for shorter files to be used, thus saving material cost.