Hot Mixed Lime Mortars Course

24 April & 18 May 2018
Venue: Charlestown Workshops, Fife

Another new course for our lovely building contractors… Have you been asked to make and use hot mixed lime mortars for conservation projects? Not yet? Well, you soon will be… there has been a growing interest in the truly traditional way of producing mortars – by mixing quicklime and sand together in one operation (and possibly with other materials and additions) and critically when it is appropriate to use them post production. Come and brush up your knowledge and skills and able to sell more services in the building conservation industry.

Calce Viva (Italian for ‘alive lime’ aka quicklime).

This one day workshop aims to provide an introductory guide to the preparation and use of’ hot mixed’ lime mortars, that is, mortars prepared by slaking quicklime, sand and natural hydraulic lime binders (and possibly other additives like tallow or pozzolans) to more closely mimic the appearance and technical performance of conservation mortars and in some cases offer advantages in use and technical performance over more conventional ‘cold mortars’. More and more clients and specifiers are asking building contractors to make and use ‘hot mixed’ mortars on their repair jobs, so get ahead of the game and brush up your knowledge and skills with us.
‘Hot mixed’ mortars have a long history of use in the UK, with evidence visible throughout the nation on traditional buildings and structures. Since the lime revival of the mid 1990s however, the preparation and use of conservation mortars has been largely dominated by lime putty bound mortars or ‘cold’ mortars based on natural hydraulic limes (NHLs). Whilst all these mortar types have their place, a renewed interest in the production of what are perceived to be more authentic mortar preparations using quicklime and sand has been growing and this workshop aims to take the building contractor through the process of making and using ‘hot mixed’ mortars safely, constituents to be used, preparation of mortars, correct mixing equipment and critically at which point these mortars should be used for particular applications.

By the end of the course, attendees will be able to recognise traditionally made ‘hot mixed’ mortars in historic structures and buildings and be able to develop the skills to produce and successfully cure ‘hot mixed’ mortars in relation to authenticity, performance, exposure, season, substrate and nature of the masonry repairs required.

Course suitability

This course is aimed at building contractors (including stonemasons, bricklayers, lime workers and labourers) involved in historic building repair, reconstruction and the consolidation of historic structures and give you the confidence to make and use ‘hot mixed’ mortars successfully.

Learning outcomes:

  • Ability to recognise traditionally made ‘hot mixed’ mortars in historic buildings and structures;
  • Ability to make and use ‘hot mixed’ mortars successfully;
  • Understand at which point, post production of ‘hot mixed’ mortars, these mortars should be used.

 Course programme through a blend of theory and practical sessions

  • Health and safety briefing;
  • Historic preparation and use of lime (and other) based mortars;
  • Understanding the range and production methods of lime binders available in the UK today;
  • Understanding other mortar constituents including sands and aggregates, pozzolans and other additives such as animal fats and milk products;
  • Why specify ‘hot mixed’ mortars? Including issues of authenticity, performance, workability and challenges thereof;
  • Causes of failure – including slow slaking, slow carbonation, wet and exposed locations, unpredictable materials and avoiding failures;
  • Making and using hot mixed lime mortars for repairs to traditional buildings– factors to consider, mix proportions, appropriate mixing equipment, when to use ‘hot mixed’ mortars post production and Building Standards;
  • Perceived barriers to specification – including Health and Safety for safe storage of materials, mixing regimes and safety in use.
  • Best practice for the production and use of ‘hot mixed’ mortars.

To book a place on any of this course, please click here, or call us on 01383 872722.

Charles Mynors talks about Curtilage Listings

15 June 2018

An Afternoon With Charles Mynors

Dr Charles Mynors is the leading authority on the extensive case law related to Curtilage Listings.

He has written extensively on the Law and Planning procedures with regards to the heritage and built environment. His book, ‘Changing Churches ; A Practical Guide To The Faculty System’, was revised in late 2017 and is now into its 5th Edition. It has become the ‘must have’ book for anyone involved with Listed Buildings and potential Planning disputes.

This highly detailed and engaging presentation will cover the topic of Curtilage Listings in considerable detail and will include the following, among much more..:

  • how to determine curtilage Listing
  • what is or isn’t a curtilage building
  • The Wednesbury Decision

He will be pleased to take questions from the floor.

This is a unique opportunity and not to be missed.

The Venue..:

Please use the SIDE ENTRANCE.

The Old Courtroom is located immediately opposite the Brighton Dome. This historic Victorian building, situated just opposite the Royal Pavilion Estate in the heart of Brighton’s Cultural Quarter, was used as a County Court up until 1967. It is just a 15 minute walk from the train station or there are several public car parks nearby.


Doors open 12:30pm. tea/coffee
Presentation starts at 1pm. Interval with tea/coffee/biscuits.
Presentation to be finished by about 5pm.
No refunds once ticket is purchased.

Further details & bookings here>>

Buildings for Mission – Changing our Logic

13 June 2018

With a target audience of those who make decisions across the Church of England and Local Authorities and those working in the church buildings sector, this one day symposium provide the opportunity for key leaders in the church and heritage sector to share their insights in what changes are necessary to secure the future of churches so that they may continue as the primary premises for Church congregations, involve the wider community and function as places of mission.

Information & Booking here:

THE OLD HOUSE SHOW. The art and craft of building care

7 – 8 September 2018
Greenwich, London

SPAB  is delighted to announce the launch of the first ever Old House Show, in partnership with Period Living, a free event taking place at the Old Royal Naval College, Greenwich over two days this September. The Old House Show takes place from Friday 7 September to Saturday 8 September 2018, and will epitomise everything the SPAB stands for. Focusing on the SPAB approach, and our unique emphasis on independent advice, crafts and education, there will be a full programme of talks, building crafts demonstrations and exhibitors with a conservation focus. The Old House Show is for members and non-members alike – and it’s absolutely free!

Talks Programme

We have an exciting programme of expert talks planned for Old House Show. The talks will take place in the magnificent historic chapel at the Old Royal Naval College, just above the main Old House Show space. The talks are free to enter and cover a range of conservation topics, from how to deal with damp, manage a building project or to protect against fire in an old building, right through to conservation principles and a careers’ forum. Register now to be the first to hear about the talks programme!

Building Crafts Demonstrations

In the famous colonnade of the Old Royal Naval College you can see live building crafts demonstrations in action. Watch bricklayers, stonemasons, plasterers, blacksmiths and stained glass conservators show you the tricks of their trade and have a go yourself!

Further details and bookings here>>