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
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