Plastering gives a superior, flat and smooth finish to a wall or ceiling. It allows a building to be able to take decoration . It has a natural lifetime, generally 100 years or more in normal circumstances.
A building may require re-plastering for various reasons. The original plaster may have failed or a modern plaster has been applied to an older building which has proven to be defective. Perhaps a property has undergone alterations, damp proofing, modernisation or refurbishments; or maybe a building has suffered from flood or fire damage and needs re-skimming. In Some plastering situations require special consideration as the majority of the time in older properties where the damp proof course (dpc) does not exist or is compromised, the ingress of moisture has a detrimental effect on the plaster. The moisture accumulation allows the natural migration of salts, which will undermine the integrity of the plaster and its decorative covering. In these instances the damaged/damp areas have to be removed. A new dpc should be inserted to eliminate any further ingress of water. Time has to be allowed in order for the affected areas to dry out before re-plastering can take place. In historic buildings where lime mortars have been used in their construction, the use of modern cement based products can cause further damp problems. This is due to cement product forming an impermeable barrier, restricting the evaporation of moisture from the core of the wall. Traditional lime mortars have to be used when renovating in these situations. Only lime based products will allow a wall to breath.
Rendering is a technique which has been used for many centuries, it is an application of a thin layered mixture of cement, sand, and lime plaster to either brick, cement, stone or mud walls of a house. It is a popular practice all over the world, particularly throughout Southern Europe where many different styles can be seen. The main purpose of Rendering an external wall is to provide an extra layer of protection against weather damage and other things which could cause erosion, however it can also help a homes overall insulation and help transform the look of your home, with different application patterns and a finishing coat of paint providing great style!