To the novice, lime plaster rendering can appear on the surface to be a somewhat complicated affair. However; with a little bit of knowledge and practice under your belt, doing your own wall Plastering & Rendering London work is completely within the realm of possibilities. You can do it!
Lime plaster rendering is done on several types of surfaces, including wood and manufactured wall mediums, but with those types of surfaces some initial preparation is required. Often times with these types of surfaces tacked down materials like wire mesh is used to hold, and contain the render.
On the other hand, when it comes to stone, cement, or any other of the more types of common porous what you might call natural building materials all that is usually required is that the surface be clean. Also the finished surface that you have in mind plays in heavily with regards to the rendering system that you use.
As for the actual type and mix of render that you use in your job there are several too choose from, so you would be well advised to study up on how to mix and blend them before you get started if you expect optimal finished results.
For instance if you are working on the outside of a building, you may want to achieve a rougher surface and also if the building is made from stone you may also want to accent or show the actual shape of the stones themselves. Hence; in this case you would use a different mix then if you were working on, say the interior where a smoother end result is desired.
You may be surprised at the wide range of aggregates and materials that you have to select from to mix lime renders and each one has its own purpose. For instance, you should consider using a fibre to help prevent cracking, and hair is a very common choice.
As for how you actually apply the plaster to the wall surface you have a few different options. Now with larger surfaces a sprayer is often used, but that is not a rule. For smaller to medium sized surface areas, a trowel is more often than not the method of choice.
Even then keep in mind that there is a wide range of tools that are employed in lime rendering, and each tool has its own specific purpose. Take a little time to study up on the different types of trowels and shaping tools so you can be sure that you are using the correct tool at any given time to achieve professional final results.
In the end, be aware that lime renders do begin to set up just as soon as they are mixed, and while they can be kept viscous by remixing, eventually overly remixed renders can set up to form a weak surface that is more prone to cracking. This is also why it always helps to have an extra set of hands on site to keep the work moving at a brisk pace.