Specifiers Journal 2015-2016

60 minutes protection for timber to BS 476: Pt. 20/22 , EN 1364-1, EN 14135 and SBI B/s1/d0
Talking Business in Colchester Campus Envirograf ®
A group of Architects and Engineers
from BDP took on the challenge of
creating a new landmark sustainable
building to accommodate the University
of Essex Business School in Colchester.
The sustainability of the building can
be seen throughout, from the selection
of materials to the passive engineering
strategies. A sustainably sourced curved
timber frame and timber cladding were
key aspects of the specifi cation. Morgan
Sindall were appointed as contractor on
site and were given the responsibilty of
executing the innovative design of this 3
storey, 5,550 sq m building with passive
ventilation and heating strategy.
A very important aspect of the project
as a whole was to make sure that the
building is not only innovative and
sustainable, but at the same time safe and
inkeeping with the Building Regulations
regarding fi re protection. This was a
very important concern, considering the
building is timber framed.
After consultations with Envirograf ® ,
the interdisciplinary team of BDP
Architects and Engineers, along with
contractor Morgan Sindall, applied
Envirograf ® Product 42 - Intumescent
paint and varnish for wood, which will
provide up to 60 minutes of fire resistance,
and Product 92 - Fire retardant coating
for timber, which will limit the spread of
fl ame across the wooden surfaces of
the building. These products allowed the
building to achieve an SBI rating of B/s1/
d0 and 60 minutes integrity to BS 476: Pt.
20/22 and EN Test meaning that in the
event of a fi re the building will maintain
its structural integrity, load-bearing
capabilities and the fire will not easily
spread.
PRODUCT 42 PRODUCT 92
Envirograf ® have Envirograf ® have
manufactured this manufactured this
system for achieving system for limiting
up to 60 minutes on
timber substrates, the
coating is available
spread of fl ame to
timber substrates, the
coating is available
in white or clear in white or clear
fi nishes and can be fi nishes and can be
used internally or used internally or
externally.
externally.
Tel: 01304 842 555 sales@envirograf.com