Page 12 - MB97

Follow us on product
NEWS

Fire resistance and stability

earn Redcliff Quarter

specification for Magply

Fire performance, chemical
composition and resistance to pull-
out loads were all factors considered
by one of the leading national
contractors in the selection of Magply
MgO boards for the cladding build-up
on four apartment blocks in Bristol.
The development in the historic dock
city’s Redcliff Quarter conservation
area is being led by Galliford Try for
developer, Redcliff Quarter MLP with
the designs of Lyons+Sleeman+Hoare
Architects combining new build
structures and elevations with retained
Victorian brick façades.
The initial description of the building
was for phase 1 (114 apartments +
14 duplex). Redcliff Quarter Phase 2
is the construction of 118 apartments
which is a mix of 1 and 2 bedroom
apartments with 4no retail units along
cross street. The facades are a mix area of use for the Magply boards Backed by BDA Agrement
of Recon Stone Panels, Brickwork, on this project is within the build-up certification, Magply MgO
composite cladding and El-zinc for the ‘picture frame’ type feature boards present a fire-safe and
Cladding. around the main entrance, where environmentally friendly alternative
The cladding contractor is responsible we have secondary steelwork and to conventional plywood or OSB
Metsec frame to build out from the
products. Additionally, the unique
for installing all of the El-zinc cladding main structure. However, because production process keeps the chloride
on the project, utilising Zinc clips the chosen cladding material is Zinc content to just 0.01%, enhancing both
to attach the very distinctive and you have to be very careful about the stability and long-term durability. The
lightweight material over a sub- chemical composition of what it is in different thicknesses of panel are also
structure of steel framing, the 12mm contact with, to avoid degradation. widely used as a substrate board for
thick Magply boards and a breather the direct application of proprietary
membrane. We considered a number of different render systems, as well as for flooring
board types to meet the required
Due to the El-zinc material only fire-rating, but Magply’s PH level and flat or pitched roof build-ups.
being 1mm thick added support was proved to be more compatible with
required to prevent the cappings from the zinc, while the manufacturer was For further information please contact:
bending out of shape. Traditionally also able to supply satisfactory data Gordon Pirret, MD or John Malone,
this would be ply, however due to the on pull-out tests, to ensure the stability UK National Sales Manager
requirement for all materials to be A2 for the cladding brackets. The boards, IPP LTD. Bradwell Hall, Bradwell on
fire rated in buildings over 18metres covered by the breather membrane, Sea, Essex. CM0 7HX.
ply was not a suitable product. are also being used beneath all the Telephone: 01621 776252
Magply was used in its place due to its cappings on the building, mounted Fax: 01621776688
property’s. between the galvanised supports, Email: gmp@intpetro.com or
The Externals Manager for Galliford Try, enabling the contractor to complete john@magply.co.uk
Martin Sykes, commented: “The main all their installation work.” www.magply.co.uk

12 modern builder - issue 97 oct www.modernbuilder.co.uk