Hi Guys some advice needed! We've got a job 300+mtrs of Polysfe/hydro coved and capped on a new build and just been to site to find they've power floated the screed. Time scales dictate we need to use a Dpm as installation dates are fixed for mid April. So ..... which systems do you use and find effective? I've used the F.Balls products but would welcome suggestions as to other manufacturers you guys use. Cheers
Depend how wet the floor is. We recently used Uzin L3 moisture control. Much easier, just prime and latex as usual, job done. No messing around, trying to get epoxy off your hand`s for weeks on end
Used L3 gold on quite a few jobs. Rearly nice to use and sets quick. Saves a few quid on labour too. Did a job today primed the floor at 8.30 started latexing at 9 went to the suppliers and breakfast back for 10.30 and it was touch dry. Ready to lay on by 11.30
mapeproof 1k turbo good upto 92% rh in 1 coat 97% in 2 coats, it's not epoxy either so you put it on very thin works a treat and costs considerably less than epoxy systems
I would get f.ball out to spec the the job. Being power floated not sure you can put a dpm straight on top.
Agree with above about l3 gold brilliant stuff prime latex and walking on all within 2 hours ish, cant see myself using a dpm and seperate latex system anytime soon
Sorry forgot that part of the equationWe are shot blasting the floor first as I'm old school anyway !
Dpm direct to powerfloat is fine so long as you key the subfloor first as you are doing. Also beware that many of these non epoxy quick dpm's are not suitable for use over underfloor heating as i forgot on a couple of jobs last year
Very limited epoxy systems also. Mapie have one but strangely you can not use it if wood flooring is being used
Tremco dpm's are fine over ufh as long as you use an epoxy primer before latexing over them, i use these quite often. Laybond one coat is also ok, they even say a standard primer is sufficient.
we have Ardex going to site for their imput and specification. As said previously I'm old school and rather belt and braces approach with the specialists than take a risk. Back in the day we floorlayers didn't get involved with anything other than laying floors as it was up to the guys with letters behind their names to specify their requirements following THEIR investigations. I feel more and more like a chemist and surveyor each day!!! Funny just got three more jobs various sizes with the same construction . Thanks to everyone for their comments much appreciated
Have a little think between yourselves please about the below. A epoxy dpm once cured will not fail. WHAT 'MIGHT' FAIL IS- the subfloor it is bonded to. So lets say we have a epoxy dpm that is applied to a subfloor. Lets say the subfloor has underfloor heating and under more stress . We have a build up of moisture being forced to surface by the underfloor heating. The result is the dpm leaves the subfloor. The failed Epoxy has sand/cement bonded to it still. QUESTION......What has failed????? ANSWER...... the subfloor has failed. NOT the epoxy dpm. QUESTION.....Can you claim against epoxy dpm manufacturer? ANSWER......NO, the epoxy dpm has not failed. The subfloor has failed. QUESTION..... who is responsible for putting right the job and the costs? ANSWER..... The floor-layer that accepted responsibility for the subfloor / dpm etc when he installed the products. They are also responsible for rectifying the failed flooring at their costs. (Matt just peed of a few manufactures telling you the above)