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What’s the right render mix ratio?
Doing this DIY and a bit confused about what the right ratio is for an external wall? What do you use when doing jobs?
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Best Answer
"The correct mix for rendering is 5 parts rendering sand 1 part cement and 1 part lime it also good to add waterproofer or plastersiser or you can get a render mix additive which has both"
Answered on 7th Aug 2025 - Member since Mar 2025 -
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"Standard external wall:
Ratio: 1 part cement : 5 parts plastering sand 1 part lime
Optional: Add plasticiser to improve workability"
Ratio: 1 part cement : 5 parts plastering sand 1 part lime
Optional: Add plasticiser to improve workability"
Answered on 7th Aug 2025 - Member since Dec 2024 -
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"I find 4 parts sand and 1 part cement works well.. Fine silver sand provides a strong durable finish. You'll need an additive such as 3 in 1 placticiser waterproofer and retarder."
Answered on 7th Aug 2025 - Member since Mar 2020 -
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