Plaster problem

[monkey123hanger]

Hi need some advice please, I am renovating a 1960 bungalow it had artex

ceilings, I hired a plasterer who was recommended and did a super job.

I applied wet coat and two finish coats lovely finish but around two months

later one of the new plastered ceilings started falling off about a meter

square in the center of the room.

The same ceiling had a crack down the middle which the plasterer taped,

filled and feathered, he came back and repaired the damage and did a super

job of blending in.

I repainted and three months down the line its starting to bow and sound

hollow along the original crack line.

I removed a load of crap out of the loft could this of caused the problem?

i.e. ceiling is moving.

your expert help please.

 

[ree]

Was the Artex cracked before any work began? Was it bulging or hollow?
Is it the Artex or the p/b thats bowing or both?

What kind of material did you have in the loft? And now?

Do people walk about in the loft? Is it boarded?

What section size ceiling joists are in place?

Did the plasterer screw up any boards before patching?

During the recent heat did you hear any cracking noises from the loft/roof area?

 

[monkey123hanger]

Hi,

What kind of material did you have in the loft? And now?

A load of MDF off cuts it weighed a lot, now loft is empty


Do people walk about in the loft? Is it boarded?

Its partly boarded but the affected area is traffic free


What section size ceiling joists are in place?

I will have to measure up


Did the plasterer screw up any boards before patching?

No he applied PVA and re-plastered

 

[ree]

Were the joists detached from any binders or hangers at any time - thats if binders or hangers were, or are, present.

How wide are the joist spans? Given a 1960's bungalow your joist sections should be R/S 2" x 4" which should be ample for most domestic ceiling spans.

A belt & braces approach is to screw up the plaster board into the nearby joists before any remedial skimming takes place.

"but the affected area is traffic free" - pressure could be transmitted from other areas? Without pics who knows?