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Laying underfloor heating then tiling on top of existing ceramic tiles fine so long as you prep the floor correctly with primer (neat neoprene). I don't know about water systems but most sites/sellers will give an estimated cost to run electric heating. You should use insulation such as...

If you lay celotex directly onto new concrete the moisture will have an adverse effect on it. On the other hand, a dpm on top of the new concrete will push all the moisture towards the walls, so you would have to incorporate the dpm into the dpc in the brickwork where the moisture will escape...

Oh that's fine.. no i was wondering because a lot of extensions have concrete subfloors which cause problems without dpm's etc. As mattysupra said, it's f-ball 500 you need, www.f-ball.co.uk They don't sell it direct but have a list of suppliers or internet to buy it from

Sorry Andy, i meant the sub-floor !! Is it timber joists or concrete etc ? I presume timber joists if was screwed and glued.

You will need a damp proof membrane on top of sand blinding (if the concrete is a rough finish) before you use insulation. Bulding regs would require 100mm insulation and 70mm reinforced screed for this. i'm you have gathered by now, you havn't left enough depth to do this. I think...

can i ask what the 6mm ply is laid on ?

yes stopgap p131, you can also get neoprene from local tile stores.. Buy a bagged screed if you can, latex or water based, it's all pre measured for you. From f-ball, same people who make p131. www.f-ball.co.uk they have a list of suppliers you can buy it from. The wickes screed might be ok...

If i've got this right. You put dpm onto the black adhesive (usually bitumen) which in itself is a dpm. prolly a bad thing to do so leave it for a while to see what it does. what you should have done is remove as much adhesive as poss then applied the primer (neoprene) not pva, then the...

I never use woodchip for that very reason but there are a few posts on here if you delve into the archives that offer some good suggestions about your problem. i've read a few not too long ago so they are there. If your patient, someone will come up with the answer soon enough.. One thing...

You could ask readymix or another similar supplier nicely if they could drop off any surplus they might have at a reduced cost, if they are in the area. Or buy a mixer, do it yourself and sell the mixer. Personally i'd just pay readymix or get a better quote..

Hi deross I misunderstood about laying the pvc (visqueen it's called here) on the actual sub-floor. I thought you were going to pin it to the underside of the floorboards but laying it under the boards on the floor is fine. If you use a water based preserver you can cover it with varnish...

Well spotted johnD !!! how did i miss that lol..

Ok, the reason your plaster is short of the concrete floor is so not to bridge the dampcourse, which sits just above the concrete. You will see it if you look. This is standard building practice and the guys who built the house saw fit to do it right lol !! Wooden floors can be plasterd to the...

The only thing that sounds like a good idea here is to add more airbricks for ventilation. When you say, remove strategic bricks, have you just taken the odd one out or removed a whole section and is it a structural or dwarf wall ? I wouldn't attach pvc to anything it will just make the...

If you wet the floor, whatever shade you see will be more or less the shade you will have after varnishing or oiling (with clear). You should have saved your sanding dust and mixed it with a clear resin to use as a filler giving an exact match to the original. No easy way to do it but you...

2 questions.... 1, is your subfloor wood plank, chipboard or concrete ? 2, How was the skirting originally fixed ?

Firstly, there was no need to use a liquid dpm if you used underlay with a built in vapour barrier. i'n not farmiliar with wickes dpm and the primer used for professional (if you like) screeds is neoprene.. You also should have removed the vinyl tiles before priming and screeding. If...

There's different underlay from 99p for 1mm foam up to about £5 for cushoined thicker underlay (price per square metre) Your floor should be level to do it right but i think you're going to do it anyway lol. It's not correct advice but why not use what you have, you might get a year out of...

Hi cleo Laminate flooring isn't realy suitable for bathrooms, even the "bathroom" laminates in my experience. Most planks have a code/name or number on the back that might help to find out the make or manufacturer to see if it is suitable. The woodchip one certainly won't work, the...