The New Warmup Ultralight Board - anygood?

rila777 · Jul 9, 2021

Has anyone used the new 6mm Ultralight Board from warmup. Any opinion, experience with it? Is it worth it. Looking to install it on a Concrete Kitchen floor under El. UFH and porcelain tiles?

rila777 · Jul 9, 2021

Here is what it looks like

demi34 · Jul 20, 2021

I have used the ultralight boar, top product 100%

rila777 · Jul 20, 2021

demi34 said:
I have used the ultralight boar, top product 100%

Thank you. Did you prime over it before pouring SLC?

Kevbos · Jul 20, 2021

rila777 said:
Has anyone used the new 6mm Ultralight Board from warmup. Any opinion, experience with it? Is it worth it. Looking to install it on a Concrete Kitchen floor under El. UFH and porcelain tiles?

I haven't used this yet !! But just read the product description , bit worrying that they describe it as a decoupling membrane , and follow this by saying if screed cracks ,the tiles won't,a decoupling membrane does not stop floors cracking if there is movement upwards or downwards , it just prevents shrinkage and swelling laterally , also they describe it as a great way of cutting costs of running electric underfloor heating!! It would take a few years to gain back just the extra cost of buying these sheets as opposed to the current systems

rila777 · Jul 20, 2021

Here is on the Kitchen Floor. Decided to prime it with Bal All-in-One.

Kevbos · Jul 20, 2021

rila777 said:
Here is on the Kitchen Floor. Decided to prime it with Bal All-in-One.

View attachment 123885

So what now you lay electric cables ? Are they covered in self levelling flexible compound and a decoupling membrane laid on top ??

demi34 · Jul 20, 2021

You lay the dam- membrane and cable after.

rila777 · Jul 20, 2021

Lay UFH Cables, then SLC and then Tiling. Why would I need decoupling membrane?
Ultralite Board should do the decoupling from the substrate - concrete.

demi34 · Jul 21, 2021

I meant the DCM-PRO membrane

rila777 · Jul 21, 2021

I am just running the ProWire Lose wire warmup
system directly on the boards

demi34 · Jul 21, 2021

Yes that’s fine but make sure you put self levelling to cover up the wire

Kevbos · Jul 21, 2021

rila777 said:
Lay UFH Cables, then SLC and then Tiling. Why would I need decoupling membrane?
Ultralite Board should do the decoupling from the substrate - concrete.

So what stops the movement from the underfloor heating into the tiles above the cables ??? As they heat up and cool down ?? Think about it ??

rila777 · Jul 22, 2021

Kevbos said:
So what stops the movement from the underfloor heating into the tiles above the cables ??? As they heat up and cool down ?? Think about it ??

Flexible SLC and Adhesive.

Kevbos · Jul 22, 2021

Kevbos said:
So what stops the movement from the underfloor heating into the tiles above the cables ??? As they heat up and cool down ?? Think about it ??

You have sorted the first movement problem

Kevbos said:
So what stops the movement from the underfloor heating into the tiles above the cables ??? As they heat up and cool down ?? Think about it ??

rila777 said:
Flexible SLC and Adhesive.

Suppose we will find out in 10 years

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