Technical Design Guides

The MCRMA technical design guides in this section cover publications produced between 1991 and 2010.  Since then, MCRMA has re-positioned its publications as Guidance Documents which set out to answer some of the frequently asked questions relating to building envelope systems and their components.

The Guidance Documents cover a wide range of topics including working at heights, CE marking, installation of purlins and side rails, CDM regulations and non-fragility.

The technical design guides are available here primarily as a reference resource and will prove particularly useful to specifiers who need to check on metal building envelope specifications of the last 25 years.


Manufacturers are best placed to offer advice about their particular products and their published data should be closely adhered to; as any variation from their data during the design or construction process could result in the component or system failing prematurely or not complying with the guarantee or warranty conditions. Any uncertainty about the use or application of a product or system should be referred back to the manufacturer for detailed written advice.

TP20 Appropriate selection of metal thickness for use in walling and roofing applications
TP19 A dynamic thermal modelling study of a typical metal clad building to evaluate overheating in the United Kingdom
TP18 Conventions for calculating U-values, f-values and Ψ-values for metal cladding systems using two and three-dimensional thermal calculations
TP17 Design guide for metal roofing and cladding to comply with energy requirements of UK Building Regulations 2006
TP16 Guidance for the effective sealing of end lap details in metal roofing constructions
TP15 New applications: composite construction
TP14 Guidance for the design of metal roofing and cladding to comply with Approved Document L2:2001
TP13 Composite slabs and beams using steel decking: best practice for design and construction
TP12 Fasteners for metal roof and wall cladding: design, detailing and installation guide
TP11 Metal Fabrications: Design, detailing and installation guide
TP09 Composite roof and wall cladding panel design guide
TP08 Acoustic design guide for metal roof and wall cladding
TP07 Fire design of steel clad external walls for building: construction, performance standards and design
TP06 Profiled metal roofing design guide
TP05 Metal wall cladding design guide
TP03 Secret fix roofing design guide
TP02 Curved sheeting manual
TP01 Recommended good practice for daylighting in metal clad buildings