Hi guys I’m a builder and my floor guy is very good at what he does on jobs what I’ve seen in the past and had no issues( but ) I opened up a kitchen with a bad floor boards and a new timber floor butted up to it (extension)I believe he used 6mm ply on old part of floor and skim coated over our new chip wood floor and fitted karndean on top. It has issues it looks like a light dip in places and in natural light you can see a few lines under it also glue seems to be coming up around where new and old floor meet The client also uses a power hot steam mop all the time on the floor which might not help the situation any thoughts on this would help please, the floor area is 60sqm
Also the chip wood floor was perfect so maybe that’s why he didn’t ply on that , Hence he only put ply on old floor boards the other end is a massive bi fold door with lots of natural light
Well the steam mop shouldn't have been used on it at all. That's one of your issues and the whole lot should have been ply boarded and I would have put a coat of fibre based screed over the lot aswell.
It’s not just any mop it’s a super £300 special thing she brought so that defo won’t help but I had a feeling he should be plying over chipwood but the floor guy hasn’t ever brought it up and blaming my sub floor
The adhesive doesn't like steam, I had an issue with a customer few year ago that I told numerous times no steam mop and she ignored it 2 months after it was fitted she calls me to say there a planks lifting (parquet) so I went round and had a look, Spon as I took out random planks it was moist/soggy adhesive. She did at first try to deny she used the steamer but in the end she held her hands up. I've probably restuck 75% of the whole floor to date obviously at her cost. I've never fitted lvt direct to chip board and never will. Some fitter do it still and have no issues but I always ply over and depending on the whole job and levels required then I flow a screed over the whole lot
Thanks for your good advice It’s a parquet design and the odd one is lifting almost looks like it shrinking and she said it’s because hot pipe work underneath
The floor is 7x2 filled with extra therm over a 3m length with mid support and passed via building regs but because small cracks in skim float and lifting small planks they think it’s a structure issue but it’s defo not I’m convinced myself that it’s because no ply
So the original concrete was cracked before he skim coated? We're they hairline cracks or we talking 'a good crack' ? The part he put the skim over shouldn't have cracked so soon so there could be issue with the subfloor beforehand. Where are the planks lifting? All over or just the part he coated?
It’s a new timber floor butted to an old timber floor so complete timber floor we are talking here , Old floor had a 6m ply over it and new was chipwood which he did a shim coat over it and then layed the karndean but the parquet planks look like there coming up (shrinking) and the joint between old and new seems like a slight line is appearing the slight air line cracks are following the chipwood
I've seen jobs glued straight to chipboard (one was fitted by a fitter who used to work for a popular manufacturer),the adhesive didn't react well, it looked more like copydex when i lifted it and isn't there a risk of it releasing formaldehyde gas? Or have i got that wrong?
