CLADDING & SHEETING
Correct specification cannot be ignored!
The success of metal cladding systems can be compromised when specifications are changed under the
disguise of ‘value engineering’ by those looking to achieve the cheapest price or to maximise profit, sourcing
materials and associated components from companies who may not operate to the highest standards.
Here, the MCRMA discusses how these problems can easily be avoided by specifying a fully designed,
manufactured and installed system from its members
In recent years, the construction sector
has come under heightened scrutiny
and improving the technical and
commercial expertise across those
who work in the industry linked with
formal training, qualifications and
quality assurance, at all levels, is now
high on the agenda from government,
control bodies, third party assessors
and businesses involved from the initial
design stage to operational use for all
building types and sectors.
Metal cladding systems provide
efficient, aesthetically pleasing, and
sustainable solutions for a wide variety
of external building envelopes. However,
the success of these systems can be
compromised when specifications are
changed under the disguise of ‘value
engineering’ by sectors within the
industry who, in looking to achieve
the cheapest price or to maximise
profit, source materials and associated
components from companies who may
not operate to the highest standards.
Inevitably, the fall-out from the
Self-study training at the
touch of a button
The MCRMA has published a revised edition
of its ‘Aluminium fabrications: A guide to
good practice’ aluminium fabrications
The 24-page document provides
theoretical and practical guidance in the
design and specification of aluminium
fabrication, including fasteners and
The document discusses the principal
approaches of the widely used fabrication
fixing methodologies of dead fix and
floating fix, examines the effects of thermal
movement and provides guidance on
correct fastener specification.
Meanwhile, a new CPD module entitled:
‘Fasteners for metal roof and wall cladding:
design, detailing and installation guide,’ is
now available on the MCRMA’s website.
The CPD module provides the user with
a comprehensive best practice guide on
the selection, use and performance of
fasteners, designed for use with metal
roofing and cladding systems.
A wide range of topics are covered
including fastener types, performance
criteria, durability, weathertightness,
aesthetics, typical cladding systems,
detailing and installation and tooling.
There are now 11-approved CPDs
available on the MCRMA website. The
course material is studied offline with an
online assessment component to verify
knowledge. The modules represent an
anticipated 60-120 minutes of professional
development, and following successful
completion of the CPD, a certificate is
available for immediate download.
All modules have been accredited by the
CPD Certification Service.
More information about the CPD courses
is available at the website address below.
been used on
COVID-19 pandemic will make it
tempting to cut business costs and to
achieve the lowest price by sourcing
materials and associated components
from different manufacturers, and then
assembling them as a ‘cladding system’
when it is nothing of the sort!
Unfortunately, this results in a
system that has no approved design,
no confirmation of performance and
no third-party assessment. This raises
critical issues for the structural integrity,
thermal performance, fire performance
and lifespan of the materials, and has
serious implications for the building
owner. In the event of a problem, there is
no recourse to a sole manufacturer and
there is no system warranty.
Manufacturing members of the
MCRMA spend a great deal of time and
money on research and quality control,
which shows in the design and durability
of the products they supply. The majority
of problems that arise on-site are not
product failures, but are caused to some
extent, by inappropriate design and
mismatch of non-compliant products.
It is therefore essential that an
experienced and reputable system
installer is employed who understands
that the selection of a material type or
component does not exist in isolation,
and has potentially far-reaching
implications on other aspects of the
performance of the completed building
This need has been recognised by
MCRMA and as part of its continuing >
36 www.rcimag.co.uk June 2020