Integral Timber Frame Structure with Continuous Insulation Cavities
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Solution Overview
Problem
Conventional timber frame constructions experience thermal breaks and energy inefficiency due to timber expansion and shrinkage, leading to cold spots and separate insulation in walls and floors.
Innovation Solution
An improved timber frame structure with integral upright and transverse joist members, thermal insulation, and cavities that allow air/fluid flow, preventing thermal breaks and enabling heat recovery and ventilation, resulting in an 'A-rated' Building Energy Rating and zero carbon emissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional separate upright stud members and transverse joist members are used for each floor, then the construction method is simple and modular, but gaps form between members due to timber expansion and shrinkage, creating thermal breaks and cold spots
Solution Approach 1:
The patent merges separate upright stud members and transverse joist members into a single integral timber frame structure. The frame members are constructed as continuous pieces that extend through multiple floors without joints, eliminating gaps caused by timber expansion and shrinkage. This merging approach ensures thermal continuity throughout the structure while preventing cold spots.
Solution Approach 2:
The patent segments the timber frame into continuous vertical and horizontal members that are engineered to span entire floor heights and lengths without interruption. By creating long continuous segments rather than short separate members, the structure eliminates thermal breaks while maintaining the modular assembly approach through pre-fabricated continuous frame sections.
2Ease of manufacture
If separate insulation is provided between walls and floors, then the construction process is simplified, but thermal breaks occur at the interfaces, reducing energy efficiency
Solution Approach 1:
The patent merges wall insulation and floor insulation into a single continuous insulation layer that runs uninterrupted from the foundation through walls and across floors. This continuous insulation approach eliminates thermal breaks at wall-floor interfaces while maintaining ease of installation through integrated insulation boards that conform to the continuous frame structure.
Solution Approach 2:
The patent uses composite insulation materials that combine different insulation properties in a single continuous layer. The insulation system integrates rigid insulation boards with continuous framing members to create a unified thermal barrier that prevents heat loss at interfaces while simplifying the installation process.
3Productivity
If traditional timber frame construction is used, then the structure is easy to construct, but thermal breaks and cold spots reduce energy efficiency
Solution Approach 1:
The patent applies preliminary action by pre-assembling continuous timber frame sections and continuous insulation layers in a controlled environment before site installation. The integral frame members and continuous insulation are prepared as complete units that eliminate thermal breaks, maintaining fast construction speed through modular assembly while preventing energy loss through continuous thermal barriers.
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 solution effectively prevents timber shrinkage, maintains continuous insulation, and enhances energy efficiency, achieving an 'A-rated' Building Energy Rating and zero carbon emissions by integrating joist members and insulation, and utilizing cavities for heat recovery.
Implementation Method 1
the one or more cavities allow air/fluid flow through or in the same. Heat within the air/fluid in the cavities can be extracted using a heat recovery and/or ventilation device.
Implementation Method 2
a timber frame structure including a plurality of upright stud members, a plurality of transverse joist members, thermal insulating means and one or more cavities
Data Source
Figure 1
Figure 2a~2b
Figure 3a~3c
AI summary
A timber frame structure is provided including: a)a plurality of integral upright frame members located a spaced distance apart from each other and between a lowest floor of the structure and a ceiling or roof of the structure, or located over at least two floor levels of the structure; b)at least one integral transverse frame member located between at least two opposing upright frame members; c)at least a part of one of the upright frame members or transverse frame member engaging in a recess defined in the other of the upright frame members or transverse frame members; d)thermal insulating means provided in a continuous or substantially continuous arrangement on and between the upright frame and transverse frame members; and e)the structure arranged such that there are one or more cavities defined in one or more external walls of the structure to allow fluid flow in the cavities in use.