Underfloor heating on marble

Bonez14

Can anyone provide reliable underfloor heating installers with marble floor installers in central london or harrow area?

supa34

Dry or wet?

Bonez14

I want to do my whole ground floor. Which includes living, hallway, kitchen and toilet. The home will have combi boiler and is new build. So not sure which 1 i should do. Probably go for quote and see

southcoastrgi

What's the floor construction ?
How thick is the marble ?
What's the tog rating of the marble ?

Are you saying the house isn't built yet ? Or
This will raise your floor level quite a bit have you thought about that ?

Bonez14

The house is not built yet. The floor construction will be 75mm screed and 75mm concrete

Im trying to get esti.ate of how much it will cost me so i am ready for it.

My boiler is combi and apparently its not zoned if that helps.

Shaun_of_the_Dead

Bonez14 wrote: »

The house is not built yet. The floor construction will be 75mm screed and 75mm concrete

Im trying to get esti.ate of how much it will cost me so i am ready for it.

My boiler is combi and apparently its not zoned if that helps.

In that case what size is the floor you intend to cover and will the builder allow for enough insulation under the slab and allow access to run the pipes before they screed the floor?

ComicGeek

Shaun_of_the_Dead wrote: »

In that case what size is the floor you intend to cover and will the builder allow for enough insulation under the slab and allow access to run the pipes before they screed the floor?

No, insulation would normally sit between the slab and screed for the underfloor heating to be effective, otherwise the heat would just warm the slab and not the room. Normally looking at 150mm insulation for new builds now.

The underfloor heating pipework is then clipped to the rigid insulation with the screed poured over.

Bonez14

I dont think they will allow that. I will check

ComicGeek

Bonez14 wrote: »

I dont think they will allow that. I will check

Check, as 75mm concrete ground bearing slab doesn't sound right, must be at least 100-150mm.

southcoastrgi

CG is correct the insulation goes on top of the slab not underneath it, I'm also slightly confused as you say the boiler is a combi & it's not zoned yet but the house isn't built yet ??

For a start it will have to be zoned, also unless it's a small house why are you having a combi ?

Bonez14

they are cheap developer that is why its combi boiler for 3 floor home... anyways

I found a quote so far and woud like to know if it is good. based on estimated floor plan. I expect the kitchen to be smaller after draws are fitted.

https://imgur.com/a/5Uek635