Guidance for design and installation
The MCRMA’s publications are prepared by working groups bringing together technical specialists from manufacturers, designers and installers, according to Roofing Today. The documents explain the use of products and systems in both common applications and projects with less usual requirements.
The association has developed the collection over more than 35 years. It includes technical guidance, design guides and advice notes, available to download as PDFs. The intended users include architects, engineers, design specialists and installers working on metal building envelopes.
Among the more recent additions are GD42 and GD42A. They address metal components known as capable members. Roofing Today reports that these are required at boundary elevations to help a metal façade maintain its integrity for a specified period during a fire. The publications address both their incorporation into the cladding and the division of responsibilities for that work.
Roofing details and training
The roofing documents cover work on existing roofs as well as installation checks. GD38 deals with over-roofing, while GD22 provides a checklist for fitting renewable energy equipment to metal roofs. GD13 focuses on roof non-fragility, also in checklist form.
Another document, GD19, deals with sealing end laps in metal roofing. Its scope includes joints between profiled metal sheets and interfaces between profiled metal and rooflights. It also covers sandwich panel-to-panel joints and connections between sandwich panels and factory-assembled rooflights.
GD19 is among the MCRMA documents approved as online continuing professional development resources by the CPD Certification Service. Roofing Today reports that a number of the association’s publications have this approval, allowing them to be used within formal training and development programmes.
Technical support beyond the documents
The association also offers technical assistance beyond its published material. Its manufacturing membership covers steel and aluminium products and systems, fasteners, fixings, insulation and other components used in metal roofing and cladding.
Other members include installers, specialists in design and calculations, and independent inspectors. According to Roofing Today, this range of disciplines allows the association to draw on expertise from different parts of the supply chain when responding to technical questions on metal envelope projects.