Cables under & through Render

[Spinny]

Am due to have k-rend on the outside of the extension. I have wires coming out through the blockwork in the right position for some outside wall up/down lights. Also wire coming through for an outside power socket.

Also have one cable currently dangling down the outside of the wall which was put in for another outside light and taken through the wall at ceiling height to then run down the outside wall down to chest height.

 

What should I do with the cables to prepare for the rendering ? Should I cap the one down the wall with something (metal or plastic) ?

 

Unfortunately I cant pull all other wires back through because of their route and internal insulation. Will rendering around these wires cause a problem for a good finish ?

[nod]

You can render round these and fix to the render surface afterwards 

Or simply clip them down an render over 

[Andehh]

We had cables poking out for cctv, and they just rendered around them. Little bit messy within 15mm, but as a box would go over it wasn't an issue.

 

Any render on the wire itself can be pushed off.

 

 

[Spinny]

On 20/04/2025 at 10:13, nod said:

Or simply clip them down an render over 

Should they not have capping - plastic, metal ? and then render over that ?

 

And presumably fix the outside socket box onto the render afterwards rather than render around it ?

[nod]

47 minutes ago, Spinny said:

Should they not have capping - plastic, metal ? and then render over that ?

 

And presumably fix the outside socket box onto the render afterwards rather than render around it ?

I would just clip to the wall I never seen capping used But don’t suppose there’s anything to stop you using a conduit 

[Spinny]

Wasn't sure if the render would attack the cable insulation over time ?

If clipping to the wall, what clips, plastic ones or the metal wrap around ones ? Does any metal have to be stainless steel to prevent rust (including clip nails) ?

[nod]

7 minutes ago, Spinny said:

Wasn't sure if the render would attack the cable insulation over time ?

If clipping to the wall, what clips, plastic ones or the metal wrap around ones ? Does any metal have to be stainless steel to prevent rust (including clip nails) ?

Your renderers will put a fibre mesh over anything that’s not block 

Bricks concrete lintels Wires Pipes etc