Most small cracks in drywall or plaster walls are not serious and are caused by seasonal expansion and contraction of the wood framing in your house over time. They’re often found at the corners of window and door frames, and can be patched using spackling or joint compound. A lot of cracks in drywall happen at corners of openings such as window and doors. These can result from the building settling but they are usually caused by shifting framing members which may be missing fasteners or don’t have enough fasteners. Step 1: Surface Crack Repair. If the crack is in a vertical or horizontal seam, widening the crack carefully the corner of a paint scraper, a knife or chisel to determine if the crack completely through the paper covering the seam ( 2); and if the tape is released from the wall surface. If the tape is intact and well bonded.
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Any type of building can be viewed as a set of lungs that inhale and exhale throughout the year, taking in warm air and expanding, then contracting to expel cold air. As a result there is a natural level of cracking and expansion that will happen on a yearly basis and over the lifetime of a home, leaving behind cracks in places where two walls meet. These cracks will never go away, but you can maintain them to keep the walls looking crack-free at all times.
Caulking
Corners are more susceptible to movement than any other part of a home because they are where two different moving sections meet, similarly to how tectonic plates move beneath the surface of the Earth. Caulking is the best option whenever it can be used, such as with tile installations, wall paneling, wood paneling or anything other than drywall installations with textured surfaces like stucco or just drywall mud.
Latex Paint
Latex-based paints are the best solution if you have a painted surface. These have special additives included in the mixture which allow for greater levels of elasticity, or the ability to expand and contract without actually giving way and cracking. They can be used alone if all you have are spiderweb cracks up the corner, but if the cracks are larger you will want to caulk them first and then paint to cover the caulking as well as old layers of paint.
Grout Removal
A mistake that some do-it-yourselfers make when installing tile on their own is grouting the inside corners. If you have existing grout in the corners from a previous installer or you just didn’t know any better on your first time through, the grout must be removed from the joint and the corner filled with a color-matching caulk that goes along with your grout selection. Grout is cementitious and will always crack under pressure and during expansion and contraction, and if you don’t remove the grout it will just keep cracking over the years until nothing is left.
Texture Repairs
Action recorder crack. There are really only two solutions for unpainted textured walls that crack up the corner. You can try to find a matching caulk that will cover the cracks as well as possible, or you can caulk the corner and cover it with a new layer of stucco.
Understand that trying to match the exact color of dried stucco is very difficult, as there are numerous variations in mixing batches, manufacturers, dyes, additives and temperature, especially over years, that will never allow for exact matches. The best you can get is a close match that should be enough to pass anything other than close inspection.
Resources (2)About the Author
Tim Anderson has been freelance writing since 2007. His has been published online through GTV Magazine, Home Anatomy, TravBuddy, MMO Hub, Killer Guides and the Delegate2 group. He spent more than 15 years as a third-generation tile and stone contractor before transitioning into freelance writing.
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Anderson, Tim. 'How to Repair Cracks Where Two Walls Meet.' Home Guides | SF Gate, http://homeguides.sfgate.com/repair-cracks-two-walls-meet-42793.html. Accessed 08 October 2019.
Anderson, Tim. (n.d.). How to Repair Cracks Where Two Walls Meet. Home Guides | SF Gate. Retrieved from http://homeguides.sfgate.com/repair-cracks-two-walls-meet-42793.html
Flexible Drywall Crack Repair
Anderson, Tim. 'How to Repair Cracks Where Two Walls Meet' accessed October 08, 2019. http://homeguides.sfgate.com/repair-cracks-two-walls-meet-42793.html
Repairing Drywall Cracks In Corners Of Wood
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