Knauf tape&joint before skimming?

Omz

Omz

New Member
Hello all,
Just started a site in Cardiff skimming Knauf PB,they are using a system of tape/joint before skim finish.
Paper tapes have bubbled and celing angles wavey due to to much product.Spoken to Knauf,they say the this system has been tested and past for the last 2 yrs.
I have been plastering for 40yrs City& Guilds qualified and this system is so wrong it will cause a huge amount of patching.
Any thoughs.
Thanks
 
Omz said:
Hello all,
Just started a site in Cardiff skimming Knauf PB,they are using a system of tape/joint before skim finish.
Paper tapes have bubbled and celing angles wavey due to to much product.Spoken to Knauf,they say the this system has been tested and past for the last 2 yrs.
I have been plastering for 40yrs City& Guilds qualified and this system is so wrong it will cause a huge amount of patching.
Any thoughs.
Thanks
Click to expand...
Never heard shite like that before . Its either taped or skimmed ffs who dreams this shite up
 
The job is a nightmare,asked Knauf to call in but they are not intrested.
Blown tapes everywhere and the have told us to blue grit there green boards.
Been plastering for 39yrs nobody listens anymore.
There patching will be very costly.
Skrim tape/ bead and plaster,site work is f**k*d.
 
Omz said:
Hello all,
Just started a site in Cardiff skimming Knauf PB,they are using a system of tape/joint before skim finish.
Paper tapes have bubbled and celing angles wavey due to to much product.Spoken to Knauf,they say the this system has been tested and past for the last 2 yrs.
I have been plastering for 40yrs City& Guilds qualified and this system is so wrong it will cause a huge amount of patching.
Any thoughs.
Thanks
Click to expand...
Confused Steve Brule GIF by MOODMAN
 
I have had this on a job at Cambridge university. The clerk of the works phoned up British Gypsum about the strongest joint material. BG said tape joint and skim!
 
Hi Malc,
I have spoken with site managers who agree with me but do nothing about it.
They had a site visit by there superiors last week i told them about this problem and they will not meet there completion date,they all looked at each other and walked out.I had a warning off site manager afterwards.
All my years in this trade means nothing.
 
Omz said:
Hi Malc,
I have spoken with site managers who agree with me but do nothing about it.
They had a site visit by there superiors last week i told them about this problem and they will not meet there completion date,they all looked at each other and walked out.I had a warning off site manager afterwards.
All my years in this trade means nothing.
Click to expand...
I've taped the joints and skimmed loads of jobs.
How are you applying the tapes?
 
essexandy said:
I've taped the joints and skimmed loads of jobs.
How are you applying the tapes?
Click to expand...
Same as that I use paper tape and filler at least 60% of the time just finished 10 houses all ceilings pink board and had to be paper tape and filler before skimming.I don’t think it’s the filler and tape is the problem it’s the guys doing it
 
Spot on buddy,i asked the taper how long in trade he answered 6 months.
The other lads upgraded from labourers.The company who has contract want it all in house.
Knauf also want blue grit on green boards,i never seen anything like this.
To much product on walls then skim WTF.They are also stopping 10% retention until mis coat.
7 month contract for my team,i am going to terminate this .
 
Omz said:
The job is a nightmare,asked Knauf to call in but they are not intrested.
Blown tapes everywhere and the have told us to blue grit there green boards.
Been plastering for 39yrs nobody listens anymore.
There patching will be very costly.
Skrim tape/ bead and plaster,site work is f**k*d.
Click to expand...
It's actually in specs that MR boards are gritted prior to skimming but it's a fked up logic anyway as you're taking away the whole point of MR boards being moisture resistant if you skim em but the trades fked anyway you've got fannies skimming walls now with 4 trowels 2 spats and a sponge float trying to achieve the same outcome as me with just 1 trowel it's a fked up world pal haha
 
I Would like to take these idiots back to the 80,s to show them what plastering is about.
"Doc Doc take me back to 1985 i got a real trade".
Back to the future for those who don,t know the phrase.
 
Omz said:
Spot on buddy,i asked the taper how long in trade he answered 6 months.
The other lads upgraded from labourers.The company who has contract want it all in house.
Knauf also want blue grit on green boards,i never seen anything like this.
To much product on walls then skim WTF.They are also stopping 10% retention until mis coat.
7 month contract for my team,i am going to terminate this .
Click to expand...
When you say "bubbling" do you mean that the tape is bubbling away from what it's stuck with, or that your skim is bubbling on the adhesive?
If you've never heard of a grit being used over moisture resistant boards before, then I'm afraid that's a lack of knowledge on your part, not them asking for something strange.
Personally I think the problem here is that there is a different company doing the taping from the one doing the skimming, that's bonkers IMHO.
 
Cockney said:
@The Apprentice
Click to expand...
Paper tape is the strongest system for plasterboards. With regards to the tape bubbling it’s usually due to insufficient material behind the tape to adhere to the paper.
Plastering trowels are slightly curved which in turn puts to much pressure on the tape and pushes the material out and leads to the tape not adhering. A taping knife is better suited, not seen one for a fair while but Spear & Jackson used to sell a tapers trowel which was concave along the blade.
 
The Apprentice said:
Paper tape is the strongest system for plasterboards. With regards to the tape bubbling it’s usually due to insufficient material behind the tape to adhere to the paper.
Plastering trowels are slightly curved which in turn puts to much pressure on the tape and pushes the material out and leads to the tape not adhering. A taping knife is better suited, not seen one for a fair while but Spear & Jackson used to sell a tapers trowel which was concave along the blade.
Click to expand...
While your here - how thick can I go with bonding on a ceiling?
 
Hi Andy,
I have gritted moisture boards before,what i am advising is the bathrooms a fully tiled so no need to skim.
Monkey boy,
Do you mean bonding out old ceiling for skimming.
That depends on condition of ceiling?
 
Contractor has asked me to snag our own work so spoke to there manager,who replied the work is very good but put some small filler on to make it look like it been patched when it does,nt need it.
WTF.
Anyone heard such crap?
 
Omz said:
Contractor has asked me to snag our own work so spoke to there manager,who replied the work is very good but put some small filler on to make it look like it been patched when it does,nt need it.
WTF.
Anyone heard such crap?
Click to expand...
Then just tell him that you've been round and put a bit of filler wherever needed.
They think you've snagged, he thinks you've pretended to snag and you have given them the finger and got your money.
 
This is the standard of tapeing and boarding to skim at 2mm and have retention held back until it is checked after mis coat?
 
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