Restoration in progress of an older building

RICS in Yorkshire & Humber: 2-day Lime Mortar Technical Event

Mon 22 Jun 2026 - Tue 23 Jun 2026 10:00 - 17:00 BST 4 hours structured CPD

Continuing Professional Development for RICS members

Fountains Abbey Visitor Centre, Ripon, HG43DY

In-Person

£80 + VAT

Overview

Lectures concerning the historic precedence of and craft practice with traditional air lime and earth-lime mortars, as well examining relative technical performance of traditional and more modern mortars followed by demonstrations of the preparation and application of traditional hot mixed mortars and limewashes and hands-on mixing and using of the same by attendees. 

Agenda

Day One (22nd June): 10am to 5pm

Morning: Lecture, covering traditional mortars – what they were; historical uses and context and methods of preparation.

Afternoon: demonstration of mixing/slaking methods and lime rich mortars, including lime and hair and limewash, as well as pozzolanic mortars.

Preparation of demonstration wall for pointing and roughcasting.

Day Two (23rd June): 10am to 5pm

Morning: 1 hour lecture on technical performance of air lime mortars and of Natural Hydraulic Lime mortars.

Rest of the day: delegates mixing mortars, repointing, applying roughcast renders, lime and hair plastering on lath. Limewashing.

Speaker

Nigel Copsey headshot

Nigel Copsey

Stonemason and Building Conservator

Nigel Copsey is a stonemason, conservator restorer, and leading authority on traditional mortars and historic building repair. Beginning his career as a dry stone waller in Cornwall, he trained as a stonemason and carver and has since worked for over three decades in building conservation across the UK and internationally, including the USA and Europe. His experience spans vernacular and high status historic buildings, with consultancy roles for organisations such as Historic England, Natural England, and the North York Moors National Park, as well as major projects including the Irish Hunger Memorial in New York City. A Professionally Accredited Conservator Restorer (ICON) and committed SPAB member, Nigel is a prominent advocate for the like for like use of traditional materials—particularly hot mixed lime and earth lime mortars—in historic repair. He has delivered training, lectures, and workshops worldwide, contributed to Historic England’s Practical Conservation series, and authored key mortar guidance used in conservation practice. Nigel led the practical conservation skills module at the University of York for ten years and is the author of Hot Mixed Lime and Traditional Mortars (2019). He also holds an MA by Research from the University of York, focused on historic mortar technologies, and continues to research and promote evidence based traditional building practices internationally.

Price summary

RICS Member only

GBP £80 + VAT

£80

+ VAT