‘Hot mix’, ‘hot limes’ and ‘hot-mixed mortars’ are lime mortars consisting of quicklime, water and an aggregate such as sand which when mixed product heat...
Animal hair has traditionally been used as reinforcement in lime renders as a means of improving tensile strength and to reduce shrinkage cracking. Introduced into the mix by teasing the hair into the mix prior to the mortars use.
After a Lime Render has been placed it must be allowed time to to cure/fully hydrate before it acquires strength and hardness.Curing is the process of keeping the mortar/render under a specific environmental condition until hydration is relatively complete.
The use of building limes have increased considerably in recent years and for very good reason; these relatively simple materials are essential to the structural welfare of historic buildings, a fact that has not escaped my attention whilst working with these materials over the last seventeen years or so.
Technical advice note for the application of Lime Mortars.
Bag rubbing is a technique where the pointing of masonry is conducted in a manner closer to rendering, that does not (have to) extinguish the ‘character’ of the wall.
Paints have been an important part of human life since the very beginnings of civilization with cave paintings being used for education and decoration as long as 40,000 years ago. Since the development of sophisticated construction techniques, such as the use of lime in the last 6000 years, paint has also been used to try and protect and preserve these buildings.