howdy, got a call back today for a job i did a while ago. 2 walls cracking like spiders webs all over them, other 2 walls are fine. did the usual at the time, prepare walls, pva then 2 coats of multi, house is about 40 or 50 years old, any ideas, thanks in advance ;D
Its a chance we all take on reskims over old plastered walls.Its with the heat of the house making it move on the brickwork.Nine times out of ten you will get away with it then you will get one comeback and think why did i do it.You can only go on what the customer wants,most customer s will just fill in the cracks themselves and re paint it.
I did one last year and the two walls that cracked were the fire place in one room and the opposite room. So both sides of the fireplace. Could be something to do with the soot affecting the bricks and old plaster?!
why would it be anything to do with suction when the walls were fine for weeks and all of a sudden they get hairline cracks, and only on a couple of the walls.
If it was anything to do with suction it would happen within the first few days or hours of plastering it.
in most houses the walls haven't seen any moisture for years, bone dry walls will suck the living daylights out of your plaster not just in the short time it takes to plaster the walls start to finish but for the next few of days afterwards leaving the plaster brittle prone to shrinkage and premature cracking .
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