This best practice guide to using hydraulic lime mortar is the result of a research project by the UK Limes team which studied the performance application and classification of hydraulic limes for the construction industry. It will prove invaluable for all building practitioners, contractors and tradesmen specifying or handling hydraulic lime on site. Containing many useful tables and charts to assist the practitioner, along with colour illustrations showing lime mortar in use, it also offers practical guidance on: the functions and properties of hydraulic lime; the constituent materials; mixing, reworking, protection and aftercare; and, mortar selection for durability, and health and safety issues