any one no wat i can do to stop render going of so quick put a scratch coat on these old red bricks they sucked all the water straight out i prepared the wall with loads of unibond but didnt really seem to help.dont want the same to happen on top coat.any ideas
The usual practice is to wet the wall before rendering.
On a cold winter day you need only to splash wall with water from a large brush, but on a hot summer day you really need to wet the wall well.
I have seen plasterers, and I have also myself used a hose to wet the wall on a real hot day.
Even though the weather has been pretty crappy lately it has still been quite warm, try giving the scratch a real good damping and you should be ok.
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