A roofing, cladding or siding module or apparatus
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional roofing, cladding, and siding products are heavy, difficult to install, lack durability and environmental resistance, and compromise weatherproofing due to fastener penetrations, while they also contribute to heat transfer from sunlight to building interiors, increasing cooling costs.
Innovation Solution
A roofing, cladding, or siding module with a cavity design that reduces heat transfer and incorporates photovoltaic cells, featuring a teardrop-shaped cavity with projections to funnel water and create a tortuous airflow pathway, secured using clips that do not penetrate the roofing substrate, made from durable polymeric materials or metals, and designed for thermal energy recovery and solar energy harvesting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional roofing products are used, then they provide basic covering functionality, but they are heavy and difficult to install
Solution Approach 1:
The roofing system is divided into modular panels that can be individually handled and installed. Each panel is a self-contained unit with integrated fastening features, allowing workers to install smaller, lighter sections rather than handling large heavy sheets or tiles.
Solution Approach 2:
The design incorporates nested structural elements where support ribs and fastening features are integrated within the panel structure itself. The fastening clips attach to recesses in the panels, creating a nested assembly that reduces the need for separate heavy components.
2Reliability
If traditional roofing products are used, then they provide basic covering functionality, but they lack durability and environmental resistance
Solution Approach 1:
The roofing panels utilize composite construction combining polymer matrices with reinforcing fibers or fillers to achieve high durability and environmental resistance. The composite structure provides superior strength-to-weight ratio, corrosion resistance, and weatherability while remaining suitable for conventional manufacturing processes.
Solution Approach 2:
The material composition and structural parameters of the panels are optimized to enhance durability. The polymer matrix formulation, fiber reinforcement orientation, and panel thickness parameters are specifically designed to resist environmental degradation, UV exposure, and thermal cycling while maintaining manufacturability.
3Reliability
If fasteners are used to attach roofing products, then they secure the roofing to the substrate, but they compromise weather proofing of the roofing substrate
Solution Approach 1:
The design extracts the fastening function from the roofing panels themselves and implements it through separate clips that attach to the panels. These clips fasten to the building substrate without penetrating the roofing panels, thereby maintaining the panels' weatherproofing integrity while achieving secure attachment.
Solution Approach 2:
The fastening clips serve as intermediary elements between the roofing panels and the building substrate. The clips penetrate the substrate while the panels remain intact, with the clips mechanically interlocking with recesses in the panels to provide secure attachment without compromising panel weatherproofing.
4Temperature
If traditional roofing surfaces are used, then they provide basic coverage, but they heat up over exposure to sunlight and transfer heat to building interiors
Solution Approach 1:
The roofing panels incorporate light-colored or reflective surface finishes that reduce solar absorption. The surface color or coating is specifically selected or designed to reflect solar radiation, thereby reducing heat gain in the panels and minimizing heat transfer to the building interior.
Solution Approach 2:
The design incorporates an air gap dimension between the roofing panels and the building substrate, creating a thermal break. This additional spatial dimension allows for thermal insulation and reduces conductive heat transfer from the panels to the building structure.
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 module effectively reduces thermal load on buildings, enhances energy efficiency, and provides a durable, environmentally resistant solution for solar energy collection and thermal management without compromising weatherproofing, while allowing for easy installation and mass production.
Implementation Method 1
a cavity (214) in the underlapping region (202)... configured to reduce heat transfer from the building surface to the module
Implementation Method 2
incorporates photovoltaic cells... designed for thermal energy recovery and solar energy harvesting
Implementation Method 3
The projections (206) create a tortuous pathway for air flow between the building surface and the module
Data Source
Figure 1
Figure 2A~2B
Figure 2C
AI summary
A roofing, cladding or siding module is described. The module comprises an underlapping region adapted to be substantially covered by an exposed region of an adjacent overlapping module when installed on a building surface. A plurality of projections are formed on an underside of the underlapping region. The projections are feet to support the module on the building surface to provide a gap between the module and the building surface, and/or provide a profile on the underside of the underlapping region to define a pathway for air flow between the module and the building surface. Each projection is formed by a downwardly projecting portion of the underlapping region with a corresponding cavity in an upper side of the underlapping region, and the cavity is shaped to prevent or minimize water pooling in the cavity.