Evening All Got a job next week where we have to lay 26m2 of reclaimed [cleaned/scraped by us] pitch pine parquet blocks. Now the subfloor is concrete and has marley tiles in-situ which we have to take up, the marley tiles are stuck down with what i think is a bitumen type of adhesive [i may be wrong not 100% sure at present] i'll of course do plenty of checks when we get the old marley tiles up and out of the room. Now i plan to put 2 x coats of lecol PU280 and kiln dried sand down, then lay the parquet with lecol 5500...the subfloor seemed super flat when i did the site survey so hopefully won't need self levelling, now has anyone got any other ideas or pro's and con's about what i propose to do, i've used this method a few times with no issues at all... All comments/opinions welcome :santa
Not really no, but none of the adhesives [solvent based ones] that will stick down reclaimed blocks have much flexibility, and PU adhesives won't stick reclaimed blocks down...btw the blocks will be well scraped and just have the oily residues on the back of the blocks, all the crud will be gone...
Does the house have existing Dpm? If not is that type of Dpm good enough to use? I'm not familiar to the lecol stuff. I use to use that 5500...its the grey stuff that dries rock hard isn't it?
As a rule of thumb older properties (upto early 80's I think) tend to have the marley tiles which have the white asbestos. It needs to be sent off and tested and personally I don't and won't touch/uplift them as they need to be disposed of properly. Matt Bourne will probably have more info on it.
Marley tiles up to 2001 i think. Here is some guidelines - http://www.hse.gov.uk/pubns/guidance/a23.pdf
Pretty sure the house has existing dpm, the house is old-ish but has been well modernised in the last 10-15 yrs, i think i'm going to have to do another site visit on Saturday Lecol 5500 is the grey stuff that dries rock hard yes...
Gaz' |Your spec is good,check with Duncan about PU 280 on Bitumen Emulsion or ATA.I think this is where your weak point is.Lecol 5500 is great on reclaimed blocks.
Standard thoughts really Gaz... How old is the house in relation to an existing dpm under the slab? That PU280 has certain limitations after a quick read of the data sheet. You've probably gone through all this on that problem thread so apologies if we're going over old ground mate.. That bitumen used to glue them tiles gives me the heebie geebies...It looks solid and sound but just give it a gentle flick with your utility knife and it's often pretty soft and plucks easily. I don't trust it and it gets removed.
Thanks chaps...i've just emailed the client with my concerns and have asked for another site visit to check things out in more detail...
More news chaps... The client has just emailed back and has informed me that the marley tiles [or marley tile look alikes] were laid 20yrs ago when the room [an extension was built] so it's pretty likely the subfloor will have a dpm under it...anyone got any ideas about the tiles ?? would tiles from 20yrs ago have had asbestos in them ??
3 questions in one don't know atm, will find out sat afternoon...when the client lifted part of the carpet up in the room for me to look at the floor when i did the site visit, i seem to vaguely remember the tiles being greenish in colour, but there were no loose tiles so i couldn't take one up to see. Out of the 3 options i'd have to say rigid...
Hi Matt Ta very much indeed for the info...i'm going to have another look at the surface this coming Saturday so we'll see how that goes...
Had a job a couple of months ago that had vinyl tiles that had to be removed before I screeded. I had the tiles tested and they were positive (although only minute quantities). I was told that now I'd had them tested they would have to be removed and disposed of by an authorised operator (expensive) - if I did it that would be illegal. I was then told that if the customer wanted to remove them himself then that would be no problem - even chucking them in an open skip. That's what he did.
