DIY overlay boards for ufh

[Andy Rhodes]

Is the 16mm pipes already in situ

 

[J Sid]

clean and prime concrete
slc to a level 38 mm below ffl
prime and fix http://www.*************************.com/insulation-boards/water/25mm-solid-floor-panels
do pipework
prime and tile

if you copy and paste http://www.*************************.com/insulation-boards/water/25mm-solid-floor-panels to search engine you will be able to work out what the link is

 

[EatingSnakes]

Thanks for the replys fellas
Very insightful.

3 maybe 4 bags of mapei renovation screed from Screwfix should do it..

This sounds like the best option to me.
So I can lay the pipes on top of the concrete and then poor the renovation screed directly above the pipes to the required level?

I have been recommended something like this too:
Concrete & Screed Fibres - 900G bag of 18mm polypropylene (PP) fibres 5060442883055 | eBay - https://www.ebay.co.uk/itm/Concrete-Screed-Fibres-900G-bag-of-18mm-polypropylene-PP-fibres-/141736144766

Does anybody have any experience with using Polypropylene fibres to make thin sand + cement screeds?

Thanks again

ES

 

[Andy Rhodes]

Julian cannot open that link keep getting an error code

 

[EatingSnakes]

you have to copy and paste the text into google mate. Its the first link.

Those ready boards are a good shout but it'll work out more expensive I think. I'll need 5 boards @ £25 each and levelling compound underneath them.

The Mapei looks good and it'll give better heat distribution.

I've already got lots of sand and cement and was wondering if I could make my own screed reinforced with PP fibre and SBR to fill 26mm worth of space.
Standard screed would definitely curl but I have heard good things about PP fibre.

 

[J Sid]

don't open it, copy and paste it to google and it will be on page one

 

[J Sid]

I've used this system many times

 

[Spare Tool]

Thanks for the replys fellas
Very insightful.



This sounds like the best option to me.
So I can lay the pipes on top of the concrete and then poor the renovation screed directly above the pipes to the required level?

I have been recommended something like this too:
Concrete & Screed Fibres - 900G bag of 18mm polypropylene (PP) fibres 5060442883055 | eBay - https://www.ebay.co.uk/itm/Concrete-Screed-Fibres-900G-bag-of-18mm-polypropylene-PP-fibres-/141736144766

Does anybody have any experience with using Polypropylene fibres to make thin sand + cement screeds?

Thanks again

ES

Ah I wrongly presumed your pipes were already fitted into pregrooved boards, like a polypipe type of system so the whole floor was already 16mm higher than the base, you need some sort of insulation under the pipes or you'll be wasting heat into the subfloor.. As it is it'd take a lot more than three of four bags of leveler, more like 10..

 

[J Sid]

where are the pipes coming from? Please don't tell us from your radiator run

 

[Time's Ran Out]

@JulianSidney - Plumb centre!