Electric Underfloor Heating

[STEVO]

Hi Fellas,

Wondering if anyone can give me some ideas about how to tackle this one..
Looking at a job for friend of friend. They are having a house refurbed totally, and new kitchen is now 1 long room which was 2. measures 6m x 3.2.
The floor needs levelling to start with, one half has a hollow of approx 30mm in it!
They are looking at putting elctric UFH in and tiling over. Floor is concrete base. I have heard that after i have level compounded the floor, there is some sort of thermal primer i can use to help reduce heat loss into the concrete prior to laying the heat mats. But also other things tell me to put insulation boards down. This gonna lift floor height even more.
Because of floor area i will also be screeding over the mat prior to tiling.
Anyone with experience of this situation who can suggest way(s) forward?
cheers,

Stevo

 

[bert&ernie]

Hi Fellas,

Wondering if anyone can give me some ideas about how to tackle this one..
Looking at a job for friend of friend. They are having a house refurbed totally, and new kitchen is now 1 long room which was 2. measures 6m x 3.2.
The floor needs levelling to start with, one half has a hollow of approx 30mm in it!
They are looking at putting elctric UFH in and tiling over. Floor is concrete base. I have heard that after i have level compounded the floor, there is some sort of thermal primer i can use to help reduce heat loss into the concrete prior to laying the heat mats. But also other things tell me to put insulation boards down. This gonna lift floor height even more.
Because of floor area i will also be screeding over the mat prior to tiling.
Anyone with experience of this situation who can suggest way(s) forward?
cheers,

Stevo

Hi Stevo,

The Thermal primer really is a gimic and your best way forward is to use the insulation boards (10mm is the norm)
Have a look at www.uheat.co.uk for some great products and prices, they will sort you out a really good deal and answer any questions you have

 

[faithhealer]

Agree B & E, see pete at Uheat, his eco boards are the cheapest around. Make sure you choose the correct SLC for that 30mm dip Stevo

 

[pjrich]

Hi Fellas,

Wondering if anyone can give me some ideas about how to tackle this one..
Looking at a job for friend of friend. They are having a house refurbed totally, and new kitchen is now 1 long room which was 2. measures 6m x 3.2.
The floor needs levelling to start with, one half has a hollow of approx 30mm in it!
They are looking at putting elctric UFH in and tiling over. Floor is concrete base. I have heard that after i have level compounded the floor, there is some sort of thermal primer i can use to help reduce heat loss into the concrete prior to laying the heat mats. But also other things tell me to put insulation boards down. This gonna lift floor height even more.
Because of floor area i will also be screeding over the mat prior to tiling.
Anyone with experience of this situation who can suggest way(s) forward?
cheers,

Stevo

Hi Stevo,

With regard to thermal primer, haven't seen any data from the suppliers/manufacturers that indicates the actual thermal resistance or conductivity of the primer which always makes me wonder if it really works. We did some tests at the factory and decided that it wasn't worth offering to our customers, actual insulation is a much better solution.

If you can afford the height increase, it would be best to use insulation boards on the concrete. You could use a thicker insulation board in the hollow to bring the floor up to the level of the rest of the floor. We offer floor insulation boardsin the following thicknesses 6mm, 10mm, 20mm, 30mm, 40mm, 50mm & 60mm.

What you might consider is to fix insulation boards on to the concrete base using flexible tile adhesive (thicker in hollow), then install underfloor heating mats and then cover with self levelling compound. This might help with keeping the floor height down by not leveling the concrete before you install the insulation.

If you need any help with further advice or prices for insulation, heating, etc, please contact me by PM or [email protected]