News
Part L changes only partly
Waterproofing
homes could
understood by business
cut energy use
by 30 per cent
n
New energy requirements Scientists have discovered that the
due to be introduced via Part energy needed to heat a home can
L (2010) of the Building Regulations be cut by up to 30 per cent in wet
will catch many commercial conditions when a silicone-based
property owners and occupiers out, compound is used.
according to a small snapshot poll Experiments were conducted
of senior industry professionals. on a purpose-built small-scale
The survey, by international brick house by the University of
multidisciplinary consultancy Portsmouth, in collaboration with
hurleypalmerflatt, questioned Safeguard Europe Ltd, a damp and
more than 40 leading corporate waterproof specialist.
occupiers, blue-chip developers A 40 watt light bulb was used
and architects about how ready as the heating source. They
they felt they were to meet the new controlled the outside temperature
standards required of Part L 2010. and humidity and fixed the
The survey found that fewer than internal temperature at 20C. The
50 per cent of companies will be waterproofing chemicals were
fully compliant by 1 October 2010. added to the exterior walls, with
Fifty-eight per cent reported feeling the energy consumption required
that communication about Part L to heat the test house measured
requirements has not been clear or before and after application.
easy to understand. Sixty-three per With external temperatures
cent said they are still not sure how of 0C, and 80 per cent humidity,
to implement Part L; while 44 per energy consumption was reduced
cent are unclear on how Part L will by nine per cent. When the external
impact on projects currently in the The snap-shot survey of 40 companies found uncertainty around Part L 2010 temperature was increased to 10C
planning and design stage. energy reduction dropped to five
In addition, 68 per cent of introduce a raft of new measures to will introduce major changes to per cent. But a second experiment
property professionals taking part cut carbon emissions, typically by the way buildings are designed, with ‘rain’ resulted in a 30 per cent
in the poll believed that compliance 25 per cent in comparison to 2006 constructed and operated. However, reduction in energy consumption.
with Part L will significantly increase standards, subject to the outcome there appear to be major gaps The university’s Dr Zhongyi
costs. of a government consultation due between what the industry is doing Zhang said: ‘Moisture increases the
The legislation affecting to be published soon. and what needs to be done. thermal conductivity of bricks and
the design, development and Commenting on the results, ‘The good news is it’s not too late mortar. By keeping the brickwork
occupation of new and refurbished Stuart Bowman, energy and for firms to get the help they need.’ dry we can significantly improve its
buildings, expected to come into sustainability director at For more information visit insulation properties.’
force on 1 October 2010, will hurleypalmerflatt, said: ‘Part L 2010
www.hurleypalmerflatt.com www.safeguardeurope.com
Test-bed of
Gillespies
sustainability
AECOM has been appointed
lead building engineer to
the new £120m Manchester
Metropolitan University (MMU)
campus, designed by architect
Sheppard Robson. AECOM’s
involvement includes all civil,
structural, mechanical and
electrical engineering design,
as well as sustainability and
acoustic design consultancy.
The 450,000 sq ft Hulme
Community Campus will be
environmentally sustainable
and a test-bed for research and
evaluation of new models of
sustainability within an urban
Tests were done on a small-scale brick
environment.
home using a light bulb as the heat
source.
www.cibsejournal.com February 2010 CIBSE Journal 9
CIBSEfeb10 pp08-09 news.indd 9 28/1/10 16:18:33
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