DIY'ing a concrete wall topper/capping, silly question

Howdy folks,

Knocked and re-building a back garden wall.

Wall is a cavity block so it's 9" wide. Plan is to have a top on it that makes it unable to be walked on/sat on/etc. (it's not really a problem in fairness, no one really sits on it or anything, but seen as im building it now, i figure it's best to take the preventative steps and build it so it can't be walked on anyway).


So the gist is I want a top on the wall that's triangular, sloping severely on both sides.

I've googled capping, looked locally, and all I can seem to get are 'saddle back' designs that are very 'flat' looking. They're a fairly common wall topper and im sure everyone is familiar with them.


So I recall being in Kerry before, and seeing the Council building a wall beside a lake, and to top the wall, what they did was run a length of 3x1" timber down the wall (on it's side, in the centre of the wall, so the wood was 3" tall), and then they encased it in cement.


So effectively, they built the cement up around the timber in the centre, smoothed it off (they were going with a circular/half moon style finish).

What I'm wondering is (as I didnt get to see them finish), if i copy this idea (length of 4x1 down the middle of the wall, encase in cement by mixing it and trowling it on), do i wait for it to dry a little, and then remove the stick, and fill the centre with cement, or do i leave the timber encased inside it and just build the cement into a pyramid/triangular shape above it?


I'm sure this method in general is fine (or the Council wouldn't do it) but i dont want to do it and then have it crack and break or such because i went about it ass-ways.


Anyone done this (or similar) before or able to offer any suggestion? Cheers

Genghis Cant

https://killeshal.com/building-components/wall-caps/

Killeshal do a range of the type of capping you're after.
I've seen the local council use them.

The link above is to wall capping. If you download the brochure you'll see the full range of saddleback specs including several of what you need.

Thanks for that Genghis.

They have two that take my interest:

WC 518: A fall of 100cm over a width of 147cm (overall width is 295cm, so a fall of 100cm on both sides).

WC 435: A fall of 160cm over a width of 157cm (overall width is 315, so a fall of 160 on both sides).



Would WC 518 be sufficient to stop people walking on it I wonder? Or is that still too 'flat'?


It's going on a wall that's made of a 9"/215cm cavity block. Is there a general recommended 'overhang' for capping? (ie will the 315cm, which has an over hang of 50cm (almost 2") on both sides, look a bit silly and 'chunky' on the wall?).



I rang them about the WC 518 (didn't see WC 435 as my phone was acting up) and they priced it at approximately €250 delivered for 10 meters. Seems expensive, but when taken into consideration is actually alright in the grand scheme of things.

Genghis Cant

I'm not so sure it'd be comfortable walking on either. I suppose if you were hell bent on it you might but I suspect either would be a good deterrent.
Regarding the overhang, I think 50mm each side is ideal.
I wonder what the cash price is to collect them yourself is?

Well they priced them to me at €15 + vat each (each is a meter long). Both are the same price.

Deliver was coming in at €50 +vat. If I had a van or such I'd imagine I could wrangle a decent deal out of them. I do have an estate car, but not sure it'd take the weight.