Sizable, jagged, or diagonal cracks may signify that the foundation may have shifted or sunk. After the structural problem is dealt with, you can have the drywall repaired. This involves replacing the damaged drywall sheets and then re-taping the joints. Cracks in walls may result from the degeneration and dilapidation of supporting wooden structures because of termite damage. To ensure the wall is smooth, apply two to three very thin coats of drywall compound over the paper tape.
After the compound dries, sand each coat before applying the next one. Experts do not recommend using Spackle to fill in the cracks because it does not give the same strong surface coverage that re-taping provides.
Spackle is a powder consisting of gypsum plaster and glue that, when mixed with water, forms a plastic paste that is used to fill cracks and holes in plaster. Another reason for avoiding Spackle in this instance is that any subsequent gradual settling will cause the cracks to resurface afterward. To make the repair last longer, re-tape cracks instead. Thin cracks across walls and doorways are not signs of a structural problem. All you need to do is re-tape and paint them.
However, if you notice deeper fissures or a lot of small cracks spread throughout the property, consult a foundation repair service. Small cracks in recently built properties should not be a huge concern.
The reason for the delay is to allow the wood to dry completely and execute its minor settling. Once this is done, you can go ahead with re-taping the cracked drywall joints and the repainting. The cracks resulting from the vacancy of a building for an extended period are a cosmetic issue. You can easily resolve it by re-taping drywall joints and repainting.
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If the crack is vertical and starts near the apex where the wall and ceiling meet, it might be a sign that it was created when the foundation settled after construction. Vertical cracks run the same direction as drywall, generally making them less serious.
If the crack is horizontal or runs at a jagged degree angle, it might mean there's a more serious problem such as severe foundation shifting or water damage. Surface-blemish cracks can often be repaired with drywall putty, sanding tools and a fresh coat of paint. More severe cracks usually require professional help to determine the exact cause and might include some reconstruction to prevent further damage.
I cut back a little either side of the crack and filled. The crack has gradually reapeared. The crack obviously follows the motar joints of the blockwork as it steps down the wall. It doesn't continue in to the living room below. Over the last year, other hairline cracks have appeared in the wall. I've just also noticed a 'step' in the plaster no more than mm betwen either side of the worst part of the crack. My question is who should I get in?
Plasters to cut back plaster and replaster or a structural engineer incase it is structural Would a plasterer let me know how serious it is? Hazelb , 27 Dec I would only worry if it was a sudden crack of greater than 10mm, or if the crack got progressively wider over a period of years - again upto 10mm. In addition, there would have to be corresponding cracks externaly too Buildings will move, and when a crack appears in plaster it it will most likely keep reappearing despite your attepts to fill it.
It only becomes an issue if it keeps getting wider, as then there is continuing movement. But this may be wasted money at this stage.
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