Advice on rendering external basement wall

[plumma]

Hello,

I have a customer who has a basement flat garden at front of the house, she wants the wall re-rendered, it's got some cracking in it and she's not too happy with the finish.

So basically behind the wall is the road/street/water table etc

What's the best approach to rendering it, I have no idea what's behind it, drainage or tanking etc.

If I render it and paint it, then there's a good chance the render will be blown in a few years with the water/freeze cycle behind it.

To be fair there are thousands of houses in London like this, I am hoping someone with experience rendering them has had some degree of success.

Thanks.

 

[Monkey Boy]

 

[Rossi46]

Knock it off and use a Sika 1,2,3 system. The final coat can be rubbed up smooth. Job done.

 

[plumma]

Knock it off and use a Sika 1,2,3 system. The final coat can be rubbed up smooth. Job done.

Thanks Rossi.

Looks like a nice system, I've calculated it's £52.50 per m2 for all three layers, it's gonna cost £520 just for the materials on one small wall, seems very expensive, but from what I have read it can withstand high hydrostatic pressure.

Have you used it before, is it easy to use?

If I am honest I am not sure she'll go for that.

Is there a cheaper 'tanking' solution using standard render throwing in a bit of customer expectations in the mix?

Cheers.

 

[LPS]

Knock it off and use a Sika 1,2,3 system. The final coat can be rubbed up smooth. Job done.

Got a link to this stuff mate?

 

[Rossi46]

Got a link to this stuff mate?

If you do this by the book it’s bulletproof. I’ve done underground car parks with it.

Waterproofing Product Solutions - Sika Waterproofing | Sika UK

Sika offers a range of waterproofing products and systems designed to provide economic, watertight solutions for even the most challenging requirements.

www.sikawaterproofing.co.uk

 

[BryanJ]

If you do this by the book it’s bulletproof. I’ve done underground car parks with it.

Waterproofing Product Solutions - Sika Waterproofing | Sika UK

Sika offers a range of waterproofing products and systems designed to provide economic, watertight solutions for even the most challenging requirements.

www.sikawaterproofing.co.uk

Originally invented by Kaspar Winkler, the founder of Sika in 1910, Sika®-1.

 

[Vincey]

I’d used Smet slp would be just the job but ask there rep to confirm

 

[superspread]

Thanks Rossi.

Looks like a nice system, I've calculated it's £52.50 per m2 for all three layers, it's gonna cost £520 just for the materials on one small wall, seems very expensive, but from what I have read it can withstand high hydrostatic pressure.

Have you used it before, is it easy to use?

If I am honest I am not sure she'll go for that.

Is there a cheaper 'tanking' solution using standard render throwing in a bit of customer expectations in the mix?

Cheers.

platon system

 

[Rossi46]

Thanks Rossi.

Looks like a nice system, I've calculated it's £52.50 per m2 for all three layers, it's gonna cost £520 just for the materials on one small wall, seems very expensive, but from what I have read it can withstand high hydrostatic pressure.

Have you used it before, is it easy to use?

If I am honest I am not sure she'll go for that.

Is there a cheaper 'tanking' solution using standard render throwing in a bit of customer expectations in the mix?

Cheers.

You could buy a bagged sand and cement and use sika 1 as an additive. It’s extremely good at holding water back. That’s a cheap option.

 

[smoother09]

Originally invented by Kaspar Winkler, the founder of Sika in 1910, Sika®-1.

Thought he was the fonzzy

 

[smoother09]

I do concur though used silka system many times it is the best on the market imo!