REPAIRING AND DECORATING DAMAGED (WATER) WALL

[llamekuf]

Friends have been given quotes by people wearing masks and spurs and
smelling of horses.
Their problem is a wall that has been damaged slightly by a water leak from
above.
The wall is now dry.
Most of the wall is in good condition apart from some parts that will need
some plastering.
Will pre-prepared plaster suffice, what should the wall be treated with to
prevent any damp patches appearing, should the dried damp dark patches be
sand papered or similar to remove them.
Any other hints or recommendations would be appreciated.

[ummmm]

If it's plaster and it's dried out then any damp patches shouldn't come through.

[The Builder]

Ummers is right with that. Could do with a bit more info though ......

1 Brick?
2 Exterior wall of interior partition?
3 Cavity?
4 What plaster is/was on there before?
5

[The Builder]

.......... ooops ..........

5 Approx age of building?

[AlBags]

All damaged plaster I knock off and re-plaster TBH (although Ummmm is probably correct in most cases, it will be ok.
However, water damage and chemical leeching often weakens and reduces layers/joints to powdery deposits, so it will not be strong any more.
If onto other masonary: Use some Multi-finish if not deep. Mix yourself. If deep, use some Tough Coat first.

[AlBags]

(This is assuming it is blockwork/pots/brick/stone inside masonary wall)
If timber or dabbed plasterboard, you need to be sure sub-surface is ok, and restore finish with some Multi-Finish.

[llamekuf]

1 Masonery? looks like dark brown material - not bricks.
2 Interior
3
4 Plaster on top but very hard material further down - could be plaster?
5 Built circa 1920.
Hope this is enough information.
There is a hole of approxiately 12" round at top of the wall where the water
has first encountered the wall - that is where the plaster came of due to the
water.

[The Builder]

"Dark brown" .............. mmmmm I'd love to know what it is :o)
No matter... interior ... just what Al says. Clean off the loose stuff. Then either "one-coat" plaster or "hardwall" & multi finish skim :o)
That's all you need.

[llamekuf]

Thank you UMMMM, THE BUILDER AND ALBAGS.
Your help is appreciated.