Rendering,
when applied to the construction or renovation of buildings, refers to the application
of cement to external and/or internal brick or concrete walls in order to
achieve a smooth or deliberately textured surface. Also called cement rendering
or solid plastering, rendering work is usually carried out by qualified
plasterers. Widely done throughout Europe for centuries, rendering appeared on
early Australian stone and mud brick dwellings, but with the exception of some
Federation style homes in 1950s, it was an overlooked technique in this country
until recently. Rendering can improve the waterproofing and fire rating of a
building, but the primary reason for doing it is aesthetic. In fact, in
Mediterranean countries and elsewhere in Europe, a brick structure is not
considered complete until it is rendered. The aesthetic beauty of rendering is
now being rediscovered in Australia and qualified plasterers are in increased
demand.
How is rendering done? Cement, sand and lime
are the main ingredients in render. The addition of lime gives the render a
creamier texture and makes it more elastic and less prone to cracking after it
dries. The sand used in rendering needs to be fine and free of impurities.
Other ingredients used in rendering mixes include pigments, bonding agents and
additives to slow the drying process. Render is applied in thin, smooth coats
using a trowel. Top coats may be applied with a trowel, a brush, a hessian bag
or a sponge, depending on the desired surface texture.
There are different types of rendering like
house rendering, it is the process carried out by the never paint again teams
whereby we cover the exterior wall surface either with a sand and cement, a
lime based, or a synthetic resin based colored render. This gives the house protection; the level of such depends largely on what
service you order from us. Normal sand and cement based render is applied by
us, but we always protect the render with a protective weatherproof wall
coating. Pebbledash rendering is protecting the bricks from the weather like
sun or rain. So pebbles are put on the sides of the wall in order to protect it
from the weather.
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