How to frost-proof a wall of Leca

[petsor]

I have a muted retaining wall built of leca blocks. Now I need to "cover" this with some material. I'm considering sheet metal, shouldn't there be sheet metal in Leca size? Does anyone know? Does anyone have any other good ideas on how to cover the wall?
Best regards,
Petsor

 

[chris47]

What do you mean by frost-proofing? Leca is as draining as anything can be. Cover the top of the wall with roof tiles for appearance, it looks nice. /CC

 

[spikmas]

I placed Platon mat on the "inside" of the retaining wall, plastered the "outside", laid edging stones on top, backfilled behind with sand, and placed drainage at the bottom.

It has worked for one winter at least....

 

[Magnus_Nordmark]

Hello!
You should definitely place a platonmatta or something else that stops moisture on the backside. If you let the fill materials lie directly against the wall, it will become waterlogged (since leca absorbs water) and risk freezing and breaking apart.

The outside can ideally be plastered. What do you mean by "plåt i lecastorlek"? I don't understand anything..

 

[Dr.SiC]

I'm raising this thread because I'm wondering about the same thing. My problem is that there are many different opinions about moisture-proofing the inside. Assuming you have some frost-resistant filler, many claim (both online and ILR) that Platon is completely overkill. Leca both breathes and is frost-resistant. Then there are those who claim that the inside must be properly moisture-proofed to prevent frost bursts, which (the frost-resistant) Leca will inevitably otherwise experience.

Does anyone have any opinions on this?

 

[jakim]

If water gets into the Leca and then it gets really cold, the water will freeze. And water that freezes expands.

So my guess is that it's safer if you moisture protect it, but it can also work without depending on how draining the filler is.

 

[Dr.SiC]

But Leca is supposed to be frost-resistant, meaning water can penetrate and freeze without causing damage, so why moisture-proof?

 

[jon_h]

Exactly. Leca can withstand freezing even when it is wet.

 

[Dr.SiC]

So all moisture protection against the lawn is overkill?

Makadam/single is used for protection against frost heave from the soil, not to prevent water from entering the leca?

 

[jon_h]

Yep, to my knowledge that is the reason.

 

[Dr.SiC]

I just talked to the neighbor and he claims that if water gets in, it can freeze and crack the plaster on the outside, therefore you should have moisture protection with platon, how does that argument hold up?

 

[jon_h]

I'm not sure, but I don't think it matters. Lecan drains the water long before it reaches the outside of the wall.

 

[lilebror]

levan will undoubtedly survive a little water. However, the plaster will crumble like freshly ground sand if not protected from frost damage. Single-lap clay tiles can be attractive, or some concrete tiles, but it matters how it looks with the surroundings. Another idea is to lay pavers as protection, just keep in mind that they need to have quite a slope, otherwise, they will allow too much water through.

 

[Dr.SiC]

It didn't become a platon, just macadam. Most of the wall is protected by the carport, for the part that sticks out I will place a frost-proof tile on it.

Thanks for the help.

 

[BigGitt]

Reviving the thread .

I've had 3 large blocks out for 4 years. They got a little dirty. But not cracked!!!