A shop asked me today they have a customer that has a floating floor and wants ufh then lvt. I can only presume that chipboard is down, what would be the correct system to lay lvt onto electric ufh?
If as you say: 6mm ply or better is 6mm tilebacker board for some insulation and it's better for moisture...... followed by heating mat and then a flexible screed (eg 700). Difficult bit is covering the mat with screed as it tends to float up and needs another hit. My trick is to use flexible tile floor adhesive and spread it over the mat to hold it down. Two or three hours later you can put the flexible screed over it.
sorry didn't see 'electric' ufh, don't know how you could do it easily think as posted 700 or similar only ever done it over water UFH
Better still as it's an insulation board....getting pricey though. The reason I asked if it's a bathroom is I've talked plenty out of ufh in bathrooms if they're having lvt as a lot of people think it's cold underfoot like tiles. I advise them just to go for a larger towel rail instead to save them a few quid.
I think they're worried that because the subfloor is floating, that with ufh although electric, everything fixed ontop will move and cause problems. I have fixed ply and installed lvt onto a floating chipboard subfloor but have had no dealings with the same to include electric ufh.
thats what i do its so flexible that it lifts most jobs i do is backer board followed by mat then flexi and lvt
Always worth a wee call to the manufacturers tech dept. As long as the floor is reasonably sound I would have thought there wouldn't be a problem but well worth checking to cover your backside.
Thanks mate, i'm only advising on this one so would like to get somewhere near the right way but will advise about asking manufaturer aswell
Jumpax make a board for ufh called heat pack. It's made for their own ufh system tho so you would have to ask them if its suitable. Probably no good in a bathroom tho
i went over a leccy u/f with NA a few yrs ago, then installed marmoleum over the top Worked a treat and still going strong (installed in my folks neighbours place)
Just remembered a system I fitted karndean on a few years ago called carbon film heating which is waffer thin. A bit of Jumppax over this perhaps http://www.floorheatingsystems.co.uk/underfloor-heating/laminate-underfloor-heating.htm
Thats the stuff the jumpax heatpak is meant to go over. You put a foam underlay board down first then that ufh film then the heatpak
