New plastered walls cracking

Members online

cassas00

New Member
Hi all,

After around 4 months I have noticed some long (3, 4, 5ft +) cracks starting to appear in newly skimmed walls. I expected some hairline cracks, but these are giving me some concern as they're 1/2mm wide.

Old Victorian house, approx 1910, solid 9 inch walls. The walls that seem worse affected are the solid walls, not the internal studded/boarded walls, and the main culprit is the wall between me and next door (terraced), so hallway, stairs and landing wall, and bedroom wall on same side.

I don't know what the plasters exact prep was but he did hack back to brick in some areas as he said old plaster was blown (black crumbly stuff) (not the areas where the cracks are) and I remember seeing mesh tape in many places and a yellow and blue grit being used (I assume to create a solid key).

Some walls with the cracks haven't even been painted yet so are bare plaster, some have been mist coated only with leyland matt brilliant white paint, diluted with 30/40% water.

There's been no heating on at all in the house so hasn't dried too quickly.

I do get a hollow sound when I tap some of these areas so after researching these forums it sounds like plaster/render has blown? My research tells me best approach is to hack off hollow areas and redo but I really would like to avoid this. My plasterer is coming around Saturday to have a look, but do I have any other options?

I read that the usual approach to cracks is to widen them and fill but won't won't work if blown. I've read about tape, even using a syringe to inject PVA inside the cracked wall to promote adhesion?

Had a bit of a nightmare with this house, last thing I need is finished jobs giving me problems. Cheers
 

John j

Mono Don
Hi all,

After around 4 months I have noticed some long (3, 4, 5ft +) cracks starting to appear in newly skimmed walls. I expected some hairline cracks, but these are giving me some concern as they're 1/2mm wide.

Old Victorian house, approx 1910, solid 9 inch walls. The walls that seem worse affected are the solid walls, not the internal studded/boarded walls, and the main culprit is the wall between me and next door (terraced), so hallway, stairs and landing wall, and bedroom wall on same side.

I don't know what the plasters exact prep was but he did hack back to brick in some areas as he said old plaster was blown (black crumbly stuff) (not the areas where the cracks are) and I remember seeing mesh tape in many places and a yellow and blue grit being used (I assume to create a solid key).

Some walls with the cracks haven't even been painted yet so are bare plaster, some have been mist coated only with leyland matt brilliant white paint, diluted with 30/40% water.

There's been no heating on at all in the house so hasn't dried too quickly.

I do get a hollow sound when I tap some of these areas so after researching these forums it sounds like plaster/render has blown? My research tells me best approach is to hack off hollow areas and redo but I really would like to avoid this. My plasterer is coming around Saturday to have a look, but do I have any other options?

I read that the usual approach to cracks is to widen them and fill but won't won't work if blown. I've read about tape, even using a syringe to inject PVA inside the cracked wall to promote adhesion?

Had a bit of a nightmare with this house, last thing I need is finished jobs giving me problems. Cheers
Affraid its risk you take skimming old walls
 

The Hobo

Well-Known Member
could be that if your house is on damp side you said no heat on/ and next door have put up their heating with the cold spell the heat from them coming through to you could be the cause
 

Mike googlebottom

Well-Known Member
Hi all,

After around 4 months I have noticed some long (3, 4, 5ft +) cracks starting to appear in newly skimmed walls. I expected some hairline cracks, but these are giving me some concern as they're 1/2mm wide.

Old Victorian house, approx 1910, solid 9 inch walls. The walls that seem worse affected are the solid walls, not the internal studded/boarded walls, and the main culprit is the wall between me and next door (terraced), so hallway, stairs and landing wall, and bedroom wall on same side.

I don't know what the plasters exact prep was but he did hack back to brick in some areas as he said old plaster was blown (black crumbly stuff) (not the areas where the cracks are) and I remember seeing mesh tape in many places and a yellow and blue grit being used (I assume to create a solid key).

Some walls with the cracks haven't even been painted yet so are bare plaster, some have been mist coated only with leyland matt brilliant white paint, diluted with 30/40% water.

There's been no heating on at all in the house so hasn't dried too quickly.

I do get a hollow sound when I tap some of these areas so after researching these forums it sounds like plaster/render has blown? My research tells me best approach is to hack off hollow areas and redo but I really would like to avoid this. My plasterer is coming around Saturday to have a look, but do I have any other options?

I read that the usual approach to cracks is to widen them and fill but won't won't work if blown. I've read about tape, even using a syringe to inject PVA inside the cracked wall to promote adhesion?

Had a bit of a nightmare with this house, last thing I need is finished jobs giving me problems. Cheers
 

megamix

Well-Known Member
I’ve got a pile of these stupid BG guarantees that don’t even cover cracks on new work yet alone reskims
 

Mike googlebottom

Well-Known Member
I always guarantee the work..gets u job most of time..cant beat a fake guarantee..also say we are artex removal specialists..just sounds better :coffe:
 

megamix

Well-Known Member
Mega mix dont be telling me your supplying guarantees on your prices
No . I’ve never filled out one of them . I always tell customer you cannot guarantee it won’t crack. I got a call off a builder today asking to go back to entension i did 6 months ago . I called in on way home to see what the issue was. It was a popped screw head on ceiling . Unbelievable
 

Mike googlebottom

Well-Known Member
No . I’ve never filled out one of them . I always tell customer you cannot guarantee it won’t crack. I got a call off a builder today asking to go back to entension i did 6 months ago . I called in on way home to see what the issue was. It was a popped screw head on ceiling . Unbelievable
And it would of been down to joiner..
 

Cockney1

Well-Known Member
No . I’ve never filled out one of them . I always tell customer you cannot guarantee it won’t crack. I got a call off a builder today asking to go back to entension i did 6 months ago . I called in on way home to see what the issue was. It was a popped screw head on ceiling . Unbelievable
I hope you called him back and told him to do 1.
 

Vincey

Private Member
Gyproc easi fill gently rub some into the crack let dry then filler knife some more on top slightly proud of the surface let dry then softly sand flat with grit 100 or 120
Paint
Job done
 

John j

Mono Don
Gyproc easi fill gently rub some into the crack let dry then filler knife some more on top slightly proud of the surface let dry then softly sand flat with grit 100 or 120
Paint
Job done
Dont think you can 100 percent stop em
 

megamix

Well-Known Member
Gyproc easi fill gently rub some into the crack let dry then filler knife some more on top slightly proud of the surface let dry then softly sand flat with grit 100 or 120
Paint
Job done
sod that it’s getting done in 5 minutes with a bit of fat off my last gauge . It’s two miles from my last job . Only doing it to keep builder sweet .
 

Dollar

Well-Known Member
Begging the question

Who would overskim over Black lime walls on pva & not have disclaimers in place !
We have hacked old over-skims walls off
Absolute shite

Your welcome
 

megamix

Well-Known Member
Hi all,

After around 4 months I have noticed some long (3, 4, 5ft +) cracks starting to appear in newly skimmed walls. I expected some hairline cracks, but these are giving me some concern as they're 1/2mm wide.

Old Victorian house, approx 1910, solid 9 inch walls. The walls that seem worse affected are the solid walls, not the internal studded/boarded walls, and the main culprit is the wall between me and next door (terraced), so hallway, stairs and landing wall, and bedroom wall on same side.

I don't know what the plasters exact prep was but he did hack back to brick in some areas as he said old plaster was blown (black crumbly stuff) (not the areas where the cracks are) and I remember seeing mesh tape in many places and a yellow and blue grit being used (I assume to create a solid key).

Some walls with the cracks haven't even been painted yet so are bare plaster, some have been mist coated only with leyland matt brilliant white paint, diluted with 30/40% water.

There's been no heating on at all in the house so hasn't dried too quickly.

I do get a hollow sound when I tap some of these areas so after researching these forums it sounds like plaster/render has blown? My research tells me best approach is to hack off hollow areas and redo but I really would like to avoid this. My plasterer is coming around Saturday to have a look, but do I have any other options?

I read that the usual approach to cracks is to widen them and fill but won't won't work if blown. I've read about tape, even using a syringe to inject PVA inside the cracked wall to promote adhesion?

Had a bit of a nightmare with this house, last thing I need is finished jobs giving me problems. Cheers
Going forward if you have anything else plastered in that house , hack it off and dab it . The amount of times I go to a customers house and they say we just want the walls reskimming. Then I tell them that the walls have blown and they will crack and probably fall off . But as soon as you mentioned it will cost double to chop it off and start fresh the customer will bury there head in the sand and say no it’s fine just skim it . I say fair enough I’ll take your money but don’t come crying when In a few months it looks like crazy paving .
 

The Hobo

Well-Known Member
Gyproc easi fill gently rub some into the crack let dry then filler knife some more on top slightly proud of the surface let dry then softly sand flat with grit 100 or 120
Paint
Job done
just got invoice in today £28.66 a bag for easifil last ones only £17.??a bag ffs
 
Top