Rendering
- Thread starter Bola
- Start date
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M
Moz
Bola
The first job that must be done is to remove the flaking paint using a paint scraper or wire brush. This is essential for the longevity of the surface. The cement won’t adhere to the paint and for the best bonding of the cement to the wall surface, it must be clean of any loose material.
Prepare the surface, or for larger jobs use an angle grinder. The mechanical method will create a lot of dust.
It is important that these fine particles are not inhaled so all those in the working environment must wear a dust mask.
wash down wall with soft brush an water ...
then Pva it with a mix of 4 parts water too 1 part pva
let dry
render mix
Four parts of sharp sand, one part cement and one part of lime. (Always keep the sand clean and measure level to the top of a bucket every time. This way the same recipe can be repeated exactly.) Avoid any contact with the skin.
The mixture is then applied to the walls using a steel trowel and holding hawk....try to achieve an even 10mm of render across the wall.
When the mixture starts to dry a steel straight edge is used with a level to straighten the wall. Any hollows are then filled with more render.
A wood float is used to smooth the surface of any bumps or hollows
A sponge float is used to give a flat line finish
Corners and windows are perfected using a straight steel edge. A corner trowel is applied to bricks or concrete blocks.
hope this helps you
The first job that must be done is to remove the flaking paint using a paint scraper or wire brush. This is essential for the longevity of the surface. The cement won’t adhere to the paint and for the best bonding of the cement to the wall surface, it must be clean of any loose material.
Prepare the surface, or for larger jobs use an angle grinder. The mechanical method will create a lot of dust.
It is important that these fine particles are not inhaled so all those in the working environment must wear a dust mask.
wash down wall with soft brush an water ...
then Pva it with a mix of 4 parts water too 1 part pva
let dry
render mix
Four parts of sharp sand, one part cement and one part of lime. (Always keep the sand clean and measure level to the top of a bucket every time. This way the same recipe can be repeated exactly.) Avoid any contact with the skin.
The mixture is then applied to the walls using a steel trowel and holding hawk....try to achieve an even 10mm of render across the wall.
When the mixture starts to dry a steel straight edge is used with a level to straighten the wall. Any hollows are then filled with more render.
A wood float is used to smooth the surface of any bumps or hollows
A sponge float is used to give a flat line finish
Corners and windows are perfected using a straight steel edge. A corner trowel is applied to bricks or concrete blocks.
hope this helps you
M
Moz
Bola
no probs
if you have a prob ... come back
no probs
if you have a prob ... come back
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