CONTEXT 185 : SEPTEMBER 2025 1 www.ihbc.org.uk @IHBCtweet Registered as a charity in England and Wales number 1061593, in Scotland number SC041945, and listed in Northern Ireland Company Limited by Guarantee Registered in England number 3333780 Registered Office: Jubilee House, High Street, Tisbury, Wiltshire SP3 6HA Officers President Rebecca Thompson, president@ihbc.org.uk Vice President Torsten Haak, vpresidentth@ihbc.org.uk Chair David McDonald, chair@ihbc.org.uk Vice Chair Lone Le Vay, vchair@ihbc.org.uk Secretary Dave Chetwyn, ihbcsecretary@ihbc.org.uk Treasurer Jill Kerry, treasurer@ihbc.org.uk National Office Director Seán O’Reilly, director@ihbc.org.uk Operations Director Fiona Newton, operations@ihbc.org.uk, consultations@ihbc.org.uk Administration Officer Lydia Porter, admin@ihbc.org.uk Education,Training & Application Support Officer Angharad Hart, training@ihbc.org.uk Membership Services Officer Carmen Moran, membershipservices@ihbc.org.uk Professional Services Officer Michael Netter, services@ihbc.org.uk Committee Chairs Policy Roy Lewis, policy@ihbc.org.uk Membership & Ethics Andrew Shepherd, membership@ihbc.org.uk Education Chris Wood, education@ihbc.org.uk Communications & Outreach Dave Chetwyn, communications@ihbc.org.uk Branch Contacts North north@ihbc.org.uk North West northwest@ihbc.org.uk Yorkshire yorkshire@ihbc.org.uk West Midlands westmids@ihbc.org.uk East Midlands eastmids@ihbc.org.uk South south@ihbc.org.uk South West southwest@ihbc.org.uk East Anglia eastanglia@ihbc.org.uk South East southeast@ihbc.org.uk London london@ihbc.org.uk Scotland scotland@ihbc.org.uk Wales wales@ihbc.org.uk Northern Ireland northernireland@ihbc.org.uk Republic of Ireland republicofireland@ihbc.org.uk Rest of the World overseas@ihbc.org.uk 2 Briefing 4 Out of Context 5 Periodically 9 The writer’s voice 9 Letter 10 Law and policy 13 Editorial 14 Understanding pitched roofs Madeleine Clark 17 A code of practice for slate and stone roofing Chris Wood 21 Reslating an ancient water mill Terry Hughes 26 A carbon case for indigenous slate Soki Rhee-Duverne and Jim Hart 30 Successful solar generation in the historic environment Morwenna Slade 34 Sourcing Scottish slate in the 21st century Imogen Shaw and Graham Briggs 38 The roofscape of Hampstead Garden Suburb Joe Mathieson 42 Conserving the postmodern legacy of the Sainsbury Wing Alasdair Travers and JonWright 45 The sad story of Derby Hippodrome Derek Latham, Peter Steer and Ashley Waterhouse 49 IHBC celebrates World Heritage UK’s anniversary Rebecca Thompson 50 Notes from the chair 51 Director’s cut 53 Inter alia 54 New member profile 55 New members 56 Vox pop 58 Reviews 61 Products and services 64 Specialist suppliers index
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