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Yeah, head scratcher with boring simple potential answers, material with differing rigidity. If there's a skim is of different plasters it's one weakness. The sliding doors & frame appear metal this carries vibration force from opening and closing (not as harsh as plastic) but still a good slam.. as you say it follows the lintel.. why are the cracks formed as if it from plasterboard idk
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Changes in rainfall the last few years?
We live in an area with some of the most absorbent clay soil around and are subject to much heaving and ho-ing depending on the moisture content.
bluehuw
withered_preacher
@chrismanc
Any idea why this is happening?
Cracks have appeared in the plaster of my back wall. Has happened suddenly sometime in the past few days .
1960s build, solid side walls with a wooden frame to the front and rear elevations. Tiles exterior on the wooden frames to front and rear . The cracks follow the outline of the wooden frame. The worst of them in line with the bottom of the lintel above a set of sliding doors.
House was refurbished ~2 years ago. No cracks for the past two winters and no changes to ambient indoor temperature . Currently no sign of water ingress , wall feels dry.
There is obviously movement in the wall , but I have no idea why . Plaster to the floor above looks fine however
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