MCRMA extends its online CPD programme

The Metal Cladding & Roofing Manufacturers Association (MCRMA) has announced the addition of two new CPD modules to its online CPD programme covering mineral wool installation and serviceability states. The new CPDs have been accredited by the CPD Certification Service and are available to anyone seeking to develop their knowledge and skills within the metal building envelope sector.

GD28 Mineral wool insulation installation: best practice guide
This CPD module sets out an overview of the factors that need to be taken into account when considering the storage, handling and installation of mineral wool insulation in built-up metal roof and wall cladding systems. The CPD examines the design factors that must be considered when specifying mineral wool insulation including the importance of the accurate calculation of the design lambda values and U-values.

Site considerations, including storage, recovery to manufactured thickness and unpacking are examined. The CPD also includes guidance on both roof and wall installation and standards of workmanship.

GD20 Serviceability states and deflections criteria
The CPD module outlines the issues that need to be addressed in order to meet the performance criteria identified by the building designer. The CPD explains the importance of setting the deflection criteria at the design stage and implementing them at the construction stage to ensure that all elements of the construction perform as expected and also that the interface, interaction and fit between components and systems meet with expectations. The CPD also includes guidance on installation tolerances for purlins and rails supporting profile metal roof sheeting and wall cladding.

Adoption by industry of the guidelines outlined in this CPD will lead to better and more consistent standards of metal roofing and cladding construction. Although written with site practitioners in mind, much of the guidance should also be useful to architects and structural engineers involved in the specification of the building envelope and supporting structure.

There are now five approved CPDs available; the earlier approved modules cover the following topics:

GD15 Guidance for wind loadings on roof and wall cladding
This CPD introduces the reader to the key issues that need to be taken into account when calculating wind loadings on both the roof and walls of industrial and commercial buildings. The CPD explains the factors which can influence the wind loading and the zonal changes around the building envelope.

GD16 Guidance for snow loading on cladding
The CPD distinguishes between types of snow load, the factors affecting snow loading and snow loading calculations. By following the recommended calculation procedures, building designers can ensure that the roofs of their buildings do not collapse.

GD24 Installation of side rails and purlins
The CPD illustrates how deviation from the correct tolerances can affect the performance of not only the cladding system and its fixings but also of associated components such as gutters and flashings.

Each CPD module represents an anticipated 60 minutes of professional development and following the successful completion of a CPD; a certificate is available for immediate download.

More information about the online CPD courses is available at