Adjustable Bracket Minimizing Thermal Bridging in Cladding
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Solution Overview
Problem
Current methods for attaching cladding systems to buildings, such as Z-furring, result in significant thermal bridging, reducing the effectiveness of insulation by up to 50% due to conductive materials bridging through the insulation, and lack adjustability for construction tolerances and varying substrate planes.
Innovation Solution
An adjustable bracket system with a flat base plate, inwardly and outwardly threaded posts, and an insulation retaining plate, allowing for minimal thermal bridging and adjustability to secure rigid and semi-rigid insulation, while accommodating varying insulation thicknesses and substrate planes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If continuous metal devices (Z-furring) are used to attach cladding systems, then structural integrity and attachment strength are improved, but thermal bridging increases significantly reducing insulation effectiveness by up to 50%
Solution Approach 1:
The bracket is divided into distinct functional segments: a base plate for substrate attachment, a post element for structural support, and an adjustable arm for cladding attachment. This segmentation allows each component to be optimized independently - the base plate can be designed to minimize thermal contact while the post provides structural integrity, resolving the contradiction between strength and thermal bridging.
Solution Approach 2:
The bracket acts as an intermediary element between the substrate and cladding, introducing a non-continuous metal path that reduces thermal bridging. By positioning the bracket away from direct thermal pathways and using minimal metal contact points, it mediates the attachment function while preserving insulation effectiveness.
2Stability of the object's composition
If rigid metal brackets are used for attachment, then structural stability is improved, but adaptability to construction tolerances and out-of-plane substrates deteriorates
Solution Approach 1:
The bracket incorporates adjustable elements including a threaded rod with nuts that allow dynamic repositioning of the cladding attachment point. This dynamic adjustment capability enables the rigid bracket structure to adapt to varying substrate planes and construction tolerances while maintaining structural stability during service.
Solution Approach 2:
The bracket design allows modification of geometric parameters such as the angle and position of the cladding attachment arm through adjustable fasteners and positioning holes. These parameter changes enable the same bracket component to accommodate different substrate conditions without compromising structural integrity.
3Adaptability or versatility
If adjustable mechanisms are added to accommodate tolerances, then adaptability is improved, but device complexity increases
Solution Approach 1:
The adjustment mechanism is segmented into simple, independent components: a threaded rod for linear adjustment, separate positioning holes for angular adjustment, and individual fasteners. This segmentation keeps each adjustment element simple and modular, reducing overall device complexity while maintaining adaptability.
Solution Approach 2:
The bracket incorporates self-aligning features such as elongated slots and overlapping adjustment ranges that allow the components to self-adjust to misalignments without requiring complex adjustment mechanisms. The design enables field adjustment by the installer without specialized tools or procedures.
Data Source
AI summary
A device for use in the fastening of a panel or cladding to a wall is disclosed. The device includes a base plate, a panel connecting plate, and a connecting assembly that connects the panel connecting plate to the base plate and that is constructed and arranged so as to provide minimal thermal bridging between the base plate and the panel connecting plate through an insulation layer that covers the base plate and the wall while simultaneously providing structural integrity for attaching the panel or cladding to the wall.