Three floors, one finish.

Hi all,

I have a 1980's built detached, the floors are concrete and screen, and they are bloody freezing in the winter. I have just built a new extension running across the back or the house and knocked the back wall out, essentially turning the 3 rooms into one big one. I'm now at the flooring point.

• The original 2 floors are Kitchen (2.5m x 4m karndean) and Dining Room (4m x 4m) removed carpet to reveal original vinyl tiles
• I have knocked down the partition wall between both of these - approx same height coverings.
• The extension (8m x 3m) runs across both of rooms with entire back wall of ground floor removed
• The extension has conrete base, 100mm kingspan ready for UFH & liquid screen
• I originallly looked at wunderfloor to provide ufh to the other two bases, but have been put off by a few chats with ufh installers who say it's rubbish.
• I think just want to insulate the 2 original floors, (15mm PIR 18mm OSB was a thought?) and stick a couple of rads in this half of the room

If I want to run engineered oak across the whole lot, how would you professionals approach this?

 

I will add, if you're an installer in the South (I'm nr Winchester) then i'm up for quotes, I have contacted a few UFH guys, and they only want to do the UFH part, not interested in the other, however I can't do the UFH until I know what level i'm going to achieve in the old part. I also don't want to be in a position where I need an additional covering on the screed, meaning I've then gone too low in the old part.

Any advice really appricieated.

 

Will the ufh cover the entire area?
You shouldnt cover the whole areas with the same floorcover with one side heated.
Could you break out try old slabs and do the whole lot with ufh pipes set in new screed?

 

Thanks for coming back to me.
I was trying to avoid that, especially as the dining room is asbestos tiles by the look of it. Is it that bad to only heat half, otherwise may rethink just going rads.

Either way trying to work out the best way to bring up everything to take the engineered oak!

 

Will need a joint T bar where the UFH finishes then.

 

For the Kardean and Asbestos tiles, can I just NA over the lot?

 

No mate. Need to take them up. Then thin coat of na and a liquid Dpm to the old concrete area ( vinyl tiles )

 

What are the height differences between the old and new sub floors? Were you going with a water ufh on the new?


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