Split Panel Connection Tracks with Thermal Break
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Solution Overview
Problem
Existing panelized wall systems with steel-based connections suffer from thermal bridging, which compromises thermal efficiency and structural integrity, particularly in studless load-bearing and bamboo panel systems.
Innovation Solution
The use of split panel connection tracks made from non-thermally conducting materials like fiberglass, combined with unique hold-down systems and jigs for precise alignment, minimizes thermal transfer while maintaining structural support, suitable for both wood and concrete subfloors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If steel-based connection tracks are used to secure panelized wall systems, then structural integrity and structural support are improved, but thermal efficiency deteriorates due to thermal bridging
Solution Approach 1:
The connection track is divided into two separate components: a first connection track for securing the panel to the subfloor and a second connection track for vertical connection. This segmentation breaks the continuous thermal path while maintaining structural support through separate anchoring points.
Solution Approach 2:
A non-thermally conducting material is introduced as an intermediary between the first and second connection tracks. This intermediary material blocks thermal transfer while allowing the two steel tracks to work together for structural support, effectively decoupling the thermal and structural functions.
2Ease of manufacture
If monolithic channel elements are used to connect panels, then installation simplicity is improved, but thermal efficiency deteriorates due to continuous metal connection across wall profile
Solution Approach 1:
The single monolithic channel is replaced by two separate connection tracks positioned at different locations. This segmentation maintains installation simplicity while breaking the continuous thermal path that would exist in a single uninterrupted metal channel.
Solution Approach 2:
The non-thermally conducting material serves as a mediator between the two separate tracks, allowing them to function together structurally while preventing thermal transfer. This intermediary enables the system to achieve both simplicity and thermal efficiency.
3Productivity
If connection tracks are installed without precise alignment tools, then installation speed is improved, but manufacturing precision deteriorates with respect to panel parallelism and location
Solution Approach 1:
Alignment jigs are used to pre-position and align the connection tracks and panels before final securing. This preliminary alignment action ensures precise panel parallelism and location, and the jigs can be quickly deployed and removed, maintaining installation speed.
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
This configuration reduces thermal transfer by 4-5% compared to prior art, enhances shear and compression strength, and ensures building code compliance, while providing superior thermal performance and structural integrity.
Implementation Method 1
The disclosed thermal break hold-down system uses fiberglass and a unique hold down washer system, wherein one long run of fiberglass may be disposed between the connection tracks or smaller squares of fiberglass may be strategically disposed between the connection tracks.
Data Source
AI summary
The installation of panelized wall systems requires the use of connection tracks to both align and hold the panels in the precise location according the specification provided in the structural engineered plans. Some panelized wall systems are comprised of two panels disposed in a parallel position so as to define a wall cavity to contain plumbing, other utilities and insulation. In the prior art, connection tracks are made of one monolithic piece, which has the unfortunate characteristic of transferring thermal energy from one side of the connection track to the other. Disclosed embodiments break the thermal bridge of the prior art while maintaining the structural integrity of the prior art embodiments. While the disclosed connection tracks achieve desired thermal properties, they present new challenges in installation. A disclosed jig and corner installation system is required to install the disclosed connection tracks in a precisely parallel position to each other.