External rendering may be the process of applying building walls with a smooth external finish The buildings are those built from concrete blocks The render is really a bonding agent or mortar composed of fine aggregate and cement An external render is fantastic wall protection It could last long and resist weather It offers good bond strength to your wall Materials like earth should be rendered continuously while materials like stone and brick don't need rendering but they can be rendered Materials for External Rendering Originally, render was made from cement, sand and lime https//builders-barrowinfurnesscouk/ can also be created from a plasticizer, that is a substance that will improve the workability of the render The render could be painted in order that it will look attractive and will be protected from weather However, also you can avail of self-colored cement renders Function External rendering could be applied to your exterior walls to be able to minimize moisture which penetrates into your underlying masonry This can also be utilized for improving the appearance of an ordinary masonry wall Things to Consider When it comes to external rendering, you can find things to be studied into account like the kind of base material or substrate, the exposure level to rain and wind and the finished exterior's desired look In turn, such factors will dictate the render's composition and the coats that you ought to apply Before you apply a render to your wall, you must take into account some things For repairing decayed render, it is important to brush off the wall so that any loose material will undoubtedly be removed After this, it is possible to bond the external render properly to your wall This depends on the kind of wall finish you have You can view that as the water in a number of external renders evaporate, the latter will shrink It is possible to avoid this if you make sure that your wall is wetted properly beforehand and the coats applied are one-half inch thick That is helpful in drying the mix sooner The wall's deep hollows could be covered up using small tile bits The mortar should be dry prior to the application of the first coat After doing the fairly thin coat, it is possible to apply subsequent coats utilizing a trowel The mortar will quickly have cracks when it's drying up Factors to consider that the cracks are caused by the shrinking process instead of the breakdown of the prior coat