cable clips for UFH?

[poynton phil]

I seen this done on that cowboy builders program the other week, and then they tiled straight over it.

 

[Gazzer]

If you had grooves in insulation you'd not be dispersing the heat. What you could do with is a cement layer on top of the insulation that's thick enough with a groove in it. Then the heat would disperse through the cement layer but the insulation would still do its job.

I routered grooves in plasterboard once and used that to feed the UFH cable into. Worked but wasn't fun (very messy) and I'm sure the performance could have been better.

Yes thats what i meant. When the boards were made the machine would stamp grooves into on side of the board . But i think the clips ar a better idea. Saw a photo today of someones UFH cable before SLC. There was more tape on the floor than anything else !!!!

 

[DHTiling]

A post on here ages ago suggested cable clips etc.. and Uheat said NO.. they can cause pressure on the cable and cause it to hotspot ( burnout)... deffo not recommended they said..

 

[Scott]

If the clips is over the top of the wire then the slc or addy cant get to it so yes it will cause a hotspot

 

[Gazzer]

If the clips is over the top of the wire then the slc or addy cant get to it so yes it will cause a hotspot

Which is why I wondered if the self adhesive pad and cable tie would work....Myself I just use a thick mix of SPF to hold the cable in place.

 

[Scott]

I wonder if the thin horseshoe ones used by BT would be any good?

 

[DHTiling]

I wonder if the thin horseshoe ones used by BT would be any good?

That is what i suggested and Uheat said they will cause a hotspot..

 

[Stewart]

I wonder if the thin horseshoe ones used by BT would be any good?

This is what I use....... It's a large adjustable staple gun for cables. I've been using one for ten years without any problems. I use "Heat mat" mats and they have no problem with this method of fixing as long as the cables not compressed.

 

[DHTiling]

Found the said thread for anyone wishing to have a looksie..


http://www.tilersforums.com/electric-underfloor-heating/18574-cable-tacker.html#post165434

 

[Gazzer]

So plastic staples would be ok as long as you had foam insulation boards beneath.

 

[DHTiling]

I think it is the crush issue Neale..

 

[Scott]

This is what I use....... It's a large adjustable staple gun for cables. I've been using one for ten years without any problems. I use "Heat mat" mats and they have no problem with this method of fixing as long as the cables not compressed.

Is that the ones that come in the green box?

 

[jay]

just a thought devi heat has a mesh backed system shame you cant buy the self adh mesh in a roll then once cable in possition then cover in the mesh then slc over

or has it been done already

 

[doug boardley]

I've quite often found that tape un-sticks and cables start corking when you cover with slc, can't really see why the plastic cable clips would create a hotspot tho' as long as you didn't compress the cable.

 

[jay]

yeah see what you mean but it may cause a hot spot