Hi can anyone help i need to render a small extension. At present it is bare breeze block, I need to render it so I can paint it. I can plaster internal walls so hopefully this will go ok.

What is the mix for the scratch coat
What is the mix for the top coat

Any tips or advice will be gratefully recieved

I may have accidently posted this a few times new to the forum

Thanks for any help
Chris

I have not done much rendering, but when I do I use a mix of 4 plastering sand and 1 cement and I add some plasticiser in with the water.

Apply it thinly, if you try and put too much on at once it will fall off with the weight.

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DIY | Donnas dream house

scratch 4-1 sand - cement. Add a waterproofer/plasticiser to the scratch coat, no need in top coat.
Top coat 5-1-1 sand - cement - lime.
If it is going to be cold it would be worth using something like feb wintermix in the top coat or else you'll be standing there all day waiting to rub it up!!
Give the scratch coat a quick rule so you get a even top coat.
Wait til it has firmed off before giving it a rub.
After you have finished rubbing it up go over it with a sponge to finish it off, looks nice when painted.

thank you both for your advice + tips. i'll be doing it soon so i will let you know how I get on

regards chris