December 2022

Contents
3 KEY FEATURES
32
16 BATTEN AWARENESS
Daniel Redfern of Marley says roofers need to
be alert to the continuing issue of counterfeit
and substandard roofing batten entering the UK
market
32 TOTAL TALK: ROB WARD
We put the questions to Rob Ward, MD of RLW
Roofing, discussing his career, challenges
within the sector, key projects he’s been
involved with, and his long affiliation with the
Sika Sarnafil system
46 MATERIAL SELECTION
Simon Walker of SIG Zinc & Copper explains why
regulation changes and cost pressures mean
the choice of material and substrate is key to
the success of metal cladding projects
46
FURTHER READING
24 SUBSTRATE SUCCESS
Wallbarn’s Julian Thurbin discusses the crucial role of
substrates and benefits of modular green roof systems
34
34 TOP CLASS WATERPROOFING
Carl Bailey of Elevate discusses modular school building
projects and why EPDM systems are so well suited
38 FIRE STANDARDS FOCUS
Flex-R’s Ben Midwinter explains why checking fire test
certifications is key as supply challenges persist
40 ASK A. PROCTOR GROUP
The team discuss whether you need an airspace
between insulation and underlay in pitched roofs
56 COVER STORY: ROCKWOOL UK
Lisa Stephens explains how to specify insulation for flat
roofs to meet modern design and safety requirements
59 QI BY QI COLUMN
The Quantum Insulation team discuss the impact of
insulation fire performance reclassification
4 TC DECEMBER 2022