New
facade techniques - removing cold bridges
Details
| Researcher: |
Zhihong Liao
David Metcalfe
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| Funded: |
DTI PII programme/industry
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| Total value: |
£99,550
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| Lead partner: |
CWCT
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| Partners: |
Sandberg
Permasteelisa
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| Status: |
Current
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Introduction:
Cladding design is changing
rapidly in response to ever tightening thermal requirements imposed in
Part L of the Building Regulations. There is a high risk that solutions
will be developed that address thermal insulation to the detriment of other
aspects of performance such as condensation formation and overall integrity.
Innovative approaches to
cladding are needed while underpinning sound design. The project will consider
trends in cladding design and analyse possible solutions for both thermal
performance and robustness.
Objectives:
The objective of this work
is to provide guidance on solutions, analytical techniques and other methods
of evaluation that will promote improved walls whilst guarding against
false solutions. The principal output from the project will be a hard copy
publication and CD available to the public – a guide to improving façade
design and particularly façade components. This will concentrate
on weaknesses of current designs, options for improvements and potential
pitfalls.
The construction types to
be considered will include:
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Curtain walling
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Rainscreen
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Punched windows
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Insulated panels
The solutions to be considered
will include:
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Thicker insulation materials
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Alternative materials
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Removal/reduction of metal components
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Cladding and thermal shielding
of components
Issues to be studied will include:
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Structural integrity
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Thermal and acoustic performance
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Durability
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Buildability
Outputs: