Architects Datafile - 02.2020

(Steven Felgate) #1
76STRUCTURAL ELEMENTS; EXTERNAL ENVELOPE

WWW.ARCHITECTSDATAFILE.CO.UK ADF FEBRUARY 2020


Assessed to ISO 9001Cert/LPCB ref. 558

http://www.hemsec.com
tel: 0151 426 7171 email: [email protected]

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M


ention curtain walling to any
specifier or house builder and it’s
odds on they won’t associate it
with residential designs. Nonetheless,
technical developments have gradually
extended their scope, first to multiple
occupancy housing projects and subsequently
to architect-designed homes.
Curtain walling has positive benefits in
terms of installation speed and cost. A facade
frame of metal, PVCu or timber has vertical
or horizontal elements which are anchored to
the supporting structure to provide a
non-load bearing external wall. Though
PVCu is still used extensively in such
situations it has drawbacks in terms of
expansion and contraction.
Aluminium is highly stable and offers a
far longer design life, its inherent strength and
light weight enabling systems to be installed
in spans of up to ten panels, each a
metre wide. On bi-folding sliding doors,
slimmer frames provide a sleek, unobtrusive

appearance, a correspondingly larger glazing
area removing any obstruction of sight lines
to the external landscape. The resulting
streamlined appearance is enhanced by the
option of a low threshold with 13mm step for
compliance with AD Part M.
The thermal performance of aluminium
systems is also a commonly cited reason for
their use. Those from Kestrel Aluminium
retain heat effectively thereby limiting its

transfer. Add to this the total recyclability of
low environmental impact of aluminium and
it has a high sustainability rating.
Modern powder coating techniques now
provide a standard of coating stability which
retains the as-installed appearance for many
years. Kestrel not only produces any RAL
shade to meet project-specific requirements
but dual colours to complement existing or
planned facets of design.
CALA Homes’ development of five and six
bedroom houses on the Coton House Estate
near Rugby has a Kestrel Aluminium 100mm
box and plate curtain walling system
incorporating 60mm casement windows. The
dramatic frontages provide high thermal
efficiency through use of polyamide thermal
breaks and low U-value double glazing units.
The end result is secure, energy efficient
and stylish.

0121 333 3575
http://www.kestrelaluminium.co.uk

Aluminium curtain walling sets new


standards in house building


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