Painted subfloor

I'm looking at a repair in a shop. The old old OLD subfloor has been painted, the floor has been primed, screeded and then lvt on top. It has been lifting in a few areas. My reckoning is the paint My simplistic theory is to 9mm ply the whole place over the existing floor. The customer does not want to break up the subfloor as the property is rented. Heart breaking not to mention ear shattering drilling an old concrete floor. I had considered jumpax but as the screeded surface has blown in an area I don't want to risk it pushing up the jumpax. The customer also does not to close for any great length of time or I would say rip up all the lvt and screed.

Any thoughts troops?

 

I'd risk it with jumpax mate but if not drill and plug 9mm ply down. Not done that but laid over loads of jobs where builders have,
Just warn the dude that the proper way is rip up remove paint and rescreed

 

Cheers, not an ideal job at all. Removing the paint would be easy either as we don't have any hire shops for that where we are.
Hmmmm dynamite!!! :evil:

 

Just drop a lad off with wire wool and gloves

 

From what I seen I reckon is garage/factory floor paint!! Even I'm not that evil, young pup with a box a brillo pads and a 24hour timeframe!

 

I was told to drill & plug ply in the exact situation for a carpet shop I was working for years ago. It did work and I never had any comebacks with the finished work, just the shopkeeper moaned about the noise, he moaned about the dust, he moaned about the length of time we were taking, he moaned about the cost the shop was charging him and then he moaned about everything else including me parking outside the shop. The guy was a dick, but the job did turn out ok

 

Cheers for that, I'm planning to do it during crimbo/new year as the shop is closed. Plus if I've still got the detox shakes from new year celebrations it'll only make SDS work better!!

 

Hi,

If you overlay a ply over the top of a floor that has pretty much failed in certain areas you will be taking a slight risk (It sounds like the DPM has failed or the original floor layers did not put one down). I have done this in the past but made the customer aware that I could not guarantee the installation.

With all of these types of jobs, the end user wants a perfect job but is always unwilling to close for the duration which can lead to the floor failing again. I would recommend that the floor is stripped back to the subfloor including the screed. A 2 coat DPM put down then a re-screed. This can then have the flooring laid on top.

I hope the info helps

Daniel

Floorsave

 

If you're fitting ply ( easiest solution I think ) use hammer screws as opposed to screws and plugs. Will save you a sh1tload of time

 

Hammer screws? What are they sandy? Never used them

 

Raw plug, with the fixing already inserted. Just bang em in !!

 

http://www.toolstation.com/shop/Scr...Hammer+Screw+Anchor+5+x+35mm/d90/sd430/p87884

You just drill through and hammer them home....don't even need to turn them. Might need to countersink slightly with some brands.

 

Years ago we called them TAP-ITS,if thats what you mean.

 

They're still called tap-its and you can still buy them

 

Cheers lads, could I remember the bloody name 'tap-its'. Used to be handy for gripper installs when the customer didn't want gripfill.
Spoke to the customer and we are on for new year week, gonna ask santa for a job lot of sds bits!!

 

If Santa gave me a load of drill bits for Christmas I'd hammer drill them right up his a@*e

 

With comments like that he wont be coming down your chimney this year!

 

I could have worded that a bit better i think

 

Lol