I did my first proper rendering job yesterday. It was an int/ext wall obviously. My mate was upstairs skimming and he said I could jump on the rendering. Its just a bit of guidance im after.....
It was all hacked off a metre high. It was previously been injected because of a rising damp problem. Whoever done specified the wall be EML lathed, and a 3-1 mix of render with a special additive (which had to ordered by TP) had to go into the mix. I read the tub, it said is used for re-rendering applications and where a wall has been treated for damp.
Anyway I mixed the stuff up with water in a bucket and knocked up my render (3 buckets of sand to 1 bucket cement) and added the premixed water. Starting from the right I splashed the wall wall with water through the EML and then layed on the render. When I got about a metre across the render starting to harden straight away and I did soak the wall. I continued across using water proof PVA but the suction was the same.
I thought a weaker mix would have been better as the suction was similar to Thermalites
few questions
Was a 3-1 mix too strong for this type of job?
Should EML have been used?
As the render dried I kept going back and splashing water on it as it was drying to prevent cracking, is this correct?
Can you apply a top coat to scratch same day or next in internal rendering?
When I top coat it tomorrow will have to use a 3-1 mix as specified or should I do a 4-1 as I know top coat has to be weaker than scratch?
It was all hacked off a metre high. It was previously been injected because of a rising damp problem. Whoever done specified the wall be EML lathed, and a 3-1 mix of render with a special additive (which had to ordered by TP) had to go into the mix. I read the tub, it said is used for re-rendering applications and where a wall has been treated for damp.
Anyway I mixed the stuff up with water in a bucket and knocked up my render (3 buckets of sand to 1 bucket cement) and added the premixed water. Starting from the right I splashed the wall wall with water through the EML and then layed on the render. When I got about a metre across the render starting to harden straight away and I did soak the wall. I continued across using water proof PVA but the suction was the same.
I thought a weaker mix would have been better as the suction was similar to Thermalites
few questions
Was a 3-1 mix too strong for this type of job?
Should EML have been used?
As the render dried I kept going back and splashing water on it as it was drying to prevent cracking, is this correct?
Can you apply a top coat to scratch same day or next in internal rendering?
When I top coat it tomorrow will have to use a 3-1 mix as specified or should I do a 4-1 as I know top coat has to be weaker than scratch?
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