R
Ren+
Tiling on Wet/Piped UFH overlay system (Advice needed)
Hi all. Can I ask for a bit of advice please.
I’m busy quoting on a bathroom refurb that is in an established older house. I need to install a wet/piped UFH system which will be overlaid on top of the existing floor planks. Final floor will be approx 450x450 porc tiles. They’ve had another en-suite done in a similar manner, which they’re chuffed with.
The spec’s of my job are:
Existing floor is planked and is on the first floor with household rooms below. The overlay UFH system is made by Uponor and is constructed of 13mm WBP 175mm wide boards with heat reflective foil underneath (also act as spreaders I assume). The pipes are 12mm and are laid in pre grooved channels in the WBP board. It’s basically a kit system. This then needs to be overlaid with some sort of board. Just a quick mention that the UFH 13mm boards, which will house the pipes, will be screwed at 150mm centres.
This is the part where I need some advice pls. Normally I would have gone for backer board on top of wood, however the pipes will then end up under backer board … not good. As I’m concerned that the 13mm UFH overlay boards are too ‘cut up’ and not enough sheeting effect, I’m thinking of further overlaying with something like 9mm WBP ply screwed at 150mm centres and then addy to go for = Keraquick + admix. Grout = flexible FTG.
Just thought I’d mention at this point that electrical UFH and lifting the existing planks to install heating pipes underneath is not an option as customer is not keen on either.
Your words of wisdom will be much appreciated.
Thx.
Andre’
Hi all. Can I ask for a bit of advice please.
I’m busy quoting on a bathroom refurb that is in an established older house. I need to install a wet/piped UFH system which will be overlaid on top of the existing floor planks. Final floor will be approx 450x450 porc tiles. They’ve had another en-suite done in a similar manner, which they’re chuffed with.
The spec’s of my job are:
Existing floor is planked and is on the first floor with household rooms below. The overlay UFH system is made by Uponor and is constructed of 13mm WBP 175mm wide boards with heat reflective foil underneath (also act as spreaders I assume). The pipes are 12mm and are laid in pre grooved channels in the WBP board. It’s basically a kit system. This then needs to be overlaid with some sort of board. Just a quick mention that the UFH 13mm boards, which will house the pipes, will be screwed at 150mm centres.
This is the part where I need some advice pls. Normally I would have gone for backer board on top of wood, however the pipes will then end up under backer board … not good. As I’m concerned that the 13mm UFH overlay boards are too ‘cut up’ and not enough sheeting effect, I’m thinking of further overlaying with something like 9mm WBP ply screwed at 150mm centres and then addy to go for = Keraquick + admix. Grout = flexible FTG.
Just thought I’d mention at this point that electrical UFH and lifting the existing planks to install heating pipes underneath is not an option as customer is not keen on either.
Your words of wisdom will be much appreciated.
Thx.
Andre’
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