Ufh protection

[junglejim]

Looking at where the ufh comes through the screed to the manifold. Any tips on protecting?

 I’ve seen these used; https://www.vpsunderfloorheating.co.uk/product/ufh-90-degree-pipe-support-bend/

 

but don’t know if I’m better off with some ducting and if so any suggestions?

 

 Thanks

[JohnMo]

The bend supports are just that, depending on what pipe you are using it may be helpful to use them. With something like Pert-al-Pert, which forms its own bend they may not be needed. 

 

If you want to add something, some flexible electric conduit could sleeve the pipes, 20mm conduit should be ok.

 

 

[junglejim]

3 minutes ago, JohnMo said:

The bend supports are just that, depending on what pipe you are using it may be helpful to use them. With something like Pert-al-Pert, which forms its own bend they may not be needed. 

 

If you want to add something, some flexible electric conduit could sleeve the pipes, 20mm conduit should be ok.

 

 

Thanks. Would you suggest using both or can the bend supports double up as protection?

[crispy_wafer]

For what its worth, pert al pert will form and hold it's own bend, and is pretty robust.  I did what JohnMo has suggested above, sleeved in flexible conduit, cheap stuff from toolstation or screwfix I think.

[Nickfromwales]

19 minutes ago, junglejim said:

Thanks. Would you suggest using both or can the bend supports double up as protection?

Assuming you’re installing the manifold at the same time? If so, then can it be mounted in its final resting place? If not, then I always shutter out a section where the pipes come out of the slab.

 

 

There was a bit of foam added to the rear of that block of PIR and then the concrete was poured. 
 

This allowed some wiggle room when the wall was finally built and the manifold could be attached in its forever position. With those bend ‘formers’ in your link this is more difficult afaic, as the pipes then can’t be manipulated into position before finally back-filling with cementitious SLC.  
 

I do the same if the screed / concrete is going down before the manifold goes on. 
 

 

 

You can cover / sleeve the pipes as above, but not really necessary imho. Doesn’t really add much. 
 

The Pert Al pipe can hold up the weight of the manifold more or less by itself, but as per pic1 I installed re-bar and made a cradle just so the concrete guys couldn’t push it over or move it etc during the pour.

 

FWIW, I’ve never had one of these pipes fail, ever, they’re pretty damn tough.