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The alternative is to either junctions such as window frames
exceed the specification to allow and junctions suggests a lack of
for failure, or to be more aware of attention to detail and a requirement
the product performance and to for products which make it easier to
choose products which you can be deliver a comprehensive, airtight
confident in. The former is an insulation envelope – one which
expensive option and would does not require exceeding
require the insulation material to specifications, which does not
take up more of the building’s impact on design of the building
footprint than is desirable. and which is cost effective.
With certain insulation types, such While the issue of thermal
as mineral wool, this would require efficiency remains hidden behind
a noticeable increase in the the debate about energy supply, it
thickness of walls, and in the case is going to be up to the designers,
of roofing insulation, a noticeable specifiers and contractors to take
increase in weight. control of the situation, research
The solution to the problem is their product and system options
revealed in the Dunham Massey and ensure that energy efficiency
estate. Thermal bridging at is delivered. 202
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