CPD: Micro-grouting as a technique to prevent water ingress in ashlar masonry

Wednesday 28th August 2019 | 12.00-1.30pm | 54 Bell Street, Glasgow

Lime grouting is not a new technique and has advantages that are often overlooked in favour of lime mortar where repairing historic buildings is concerned. Micro-grouting as a new methodology to inject lime grout and mortars into narrow ashlar mortar joints was developed for and used during the repair of Burns Monument, Alloway. Persistent longstanding water penetration causing severe damage to the monument has been addressed in a way that was hitherto not possible by injecting some 8000L of lime grout into open mortar joints and deep voids throughout the monument.

Kinlay Laidlaw provided technical support and clerk of works services on the project undertaken 2018-19. He will describe the background to the project and examine in-depth the new micro-grouting methodology applied and lessons learned, followed by a technical demonstration. This detailed, technical talk is geared to help heritage professionals and contractors understand the benefits of this new-yet-traditional technique to contemporary conservation practice and add it to their repertoire of conservation approaches applicable to ashlar masonry and thus to much of Scotland’s built heritage.

Kinlay is Director of Laidlaw Associates, Chartered Building Surveyors and Heritage Consultants, specialising in historic building conservation and research. Before establishing this consultancy, Kinlay was a Lead Surveyor at the National Trust for Scotland, managing maintenance and repair of some of Scotland’s most celebrated historic buildings and led the Stonemasonry team at Culzean Castle.

All GCHT CPD sessions are recognised by the IHBC, and attendees can obtain a CPD certificate upon completion.

£15 per person /£10 for students, including light lunch. Please note start time of 12pm – in order to be comprehensive, this CPD will run slightly longer than usual.


All sessions are recognised by the Institute of Historic Building Conservation (IHBC) as being capable of contributing to the obligatory CPD requirements of Full Members (see www.ihbc.org.uk)

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