Thermal Break for Tilt-Up Wall Fixture Mounting
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Solution Overview
Problem
In tilt-up construction, existing exterior walls face structural failures due to the lack of adequate weight-bearing support for fixtures, which are typically mounted directly on non-weight-bearing insulating materials, leading to thermal energy loss and potential mechanical failures from differential expansion and moisture issues.
Innovation Solution
A thermal break system comprising an elongate body with protrusions made of non-wood materials, providing a weight-bearing surface for fixtures and accommodating thermal expansion, integrated into the exterior wall structure between the fascia and structural wythes, ensuring continuous insulation and structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If fixtures are mounted directly on insulating material or fascia wythe, then installation is simplified, but structural failure occurs over time due to lack of weight-bearing support
Solution Approach 1:
The patent introduces a thermal break component as an intermediary element between the insulating material and the fixture. This thermal break provides a weight-bearing surface that can support fixture loads while maintaining the thermal insulation continuity. The thermal break acts as a mediator that resolves the conflict between needing structural support and maintaining thermal performance.
2Loss of energy
If insulating material extends to the side edge of the exterior wall, then thermal energy loss is reduced, but fixture mounting becomes problematic due to lack of structural support
Solution Approach 1:
The thermal break serves multiple functions simultaneously: it provides thermal insulation to reduce energy loss, provides a weight-bearing surface for fixture mounting, and maintains structural integrity. This multi-functional component eliminates the need to compromise between thermal performance and structural support.
3Strength
If wood is used between insulating material and exterior wall to provide mounting surface, then fixture support is improved, but moisture-related deterioration and mechanical failure occur
Solution Approach 1:
The patent changes the material parameter from organic (wood) to inorganic (concrete-compatible material). The thermal break is made of a material that has similar thermal expansion characteristics to concrete, eliminating differential expansion issues. It is also impervious to moisture, preventing rot and deterioration that plague wooden mounting surfaces.
4Reliability
If thermal break is introduced to provide weight-bearing support, then structural reliability is improved, but thermal energy loss increases due to potential gaps in insulation continuity
Solution Approach 1:
The thermal break is designed with specific local qualities: it has a thermal insulation layer that maintains continuity with the bulk insulating material, and a weight-bearing surface layer that provides structural support. This localized differentiation of properties allows it to simultaneously provide structural support and maintain thermal insulation continuity.
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 thermal break system enhances structural support, reduces thermal energy loss, and minimizes mechanical failures by providing a durable, moisture-resistant interface that meets energy code requirements for continuous insulation between the structural and fascia wythes.
Implementation Method 1
the elongate body substantially made of a non-wood material... comprising one or more thermal insulating materials
Data Source
AI summary
The present disclosure relates to an exterior wall for tilt-up construction comprising: (a) a fascia wythe; (b) a structural wythe; (c) a layer of insulating material disposed between the fascia wythe and the structural wythe; and (d) a thermal break in contact with at least the structural wythe, the thermal break comprising an elongate body comprising one or more thermal insulating materials, a first surface suitable for mounting a fixture, a second surface opposite the first surface, a first contacting surface, and a second contacting surface opposite the first contacting surface, the first contacting surface and the second contacting surface extending between the first surface and the second surface. The elongate body is substantially made of a non-wood material, and the structural wythe contacts at least a portion of the second contacting surface. The present disclosure further relates to methods of constructing an exterior wall comprising a thermal break.