Retaining device for roof elements for use with a roof covering flat element and roof covering flat element with such a retaining device
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Solution Overview
Problem
Existing roof fastening systems for mounting elements like solar modules and snow guards are time-consuming, costly, and prone to leakage or material damage due to high mechanical loads, especially when installed on existing roofs with concrete or clay tiles.
Innovation Solution
A roof covering panel with a holding device featuring a plate-shaped base body and elongated profile elements with direct adhesive connections, providing increased mechanical strength and allowing direct installation of roof-mounted elements without altering the roof substructure, using a thermally resilient adhesive and locking mechanisms to secure against wind suction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional fastening systems are used to mount roof elements, then installation is possible, but the process is time-consuming and costly
Solution Approach 1:
The holding device is pre-integrated into the roof covering panel during manufacturing, with profile elements and contact sections prepared in advance. This preliminary integration eliminates the need for time-consuming on-site installation procedures, allowing quick attachment of roof-mounted elements by simply aligning and securing the elements to the pre-positioned holding device structures.
2Adaptability or versatility
If roof covering panels are replaced or modified to install fastening systems, then mounting capability is achieved, but leakage risks increase
Solution Approach 1:
The roof covering panel serves multiple functions: it provides weather protection and simultaneously integrates a holding device for mounting roof elements. The profile elements and contact sections are designed to work with the panel's existing structure, allowing the panel to fulfill both its traditional protective role and its new mounting role without compromising either function.
3Strength
If high mechanical loads are applied to mounting structures, then roof elements can be secured, but material damage occurs
Solution Approach 1:
The holding device combines the roof covering panel material with profile elements and adhesive bonds to create a composite structure. This composite construction distributes mechanical loads across multiple components and materials, preventing concentration of stress at single weak points and thereby avoiding material damage while maintaining high load-bearing capacity.
4Strength
If adhesive bonds are used to create planar connections, then mechanical strength increases, but thermal expansion differences may affect bonding
Solution Approach 1:
The adhesive bonding process and material selection are optimized to accommodate thermal expansion differences between the roof covering panel and profile elements. The adhesive formulation and bonding parameters are specifically chosen to maintain bond integrity across the temperature range experienced on roofs, preventing failure due to thermal cycling.
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
Enables quick, resilient, and cost-effective installation of roof-mounted elements with enhanced mechanical load capacity, preventing damage and leakage, while maintaining the integrity of roofing materials under various weather conditions.
Implementation Method 1
its contact section (2.11) is directly bonded to the plate-shaped base body (1.1), specifically on its top or bottom side (1.11, 1.12)
Data Source
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AI summary
The invention relates to a roofing panel (1) with a holding device (2) for roof-mounted elements, wherein the roofing panel (1) has a plate-shaped base body (1.1) extending along a longitudinal axis (LA) with a top and bottom surface (1.11, 1.12) and the holding device (2) has at least one elongated profile element (2.1) with a contact section (2.11). It is particularly advantageous for creating a planar bond between the plate-shaped base body (1.1) and the at least one profile element (2.1) if the contact section (2.11) of the profile element is directly bonded to the plate-shaped base body (1.1) over its entire surface, either on the top surface (1.11) or on the bottom surface (1.12) of the plate-shaped base body (1.1).