ROOF & FIXTURES | How to fix cracked ceiling.

Did you know that there are lots of people who actually enjoy looking at the ceiling when they are bored? Yes, it`s a thing! Haha. Jokes aside, the ceiling is a very important aspect of the building design. Ceilings determine the look and feel of a room. It is a well-known fact that higher ceilings provide better air circulation and enhances daylight. It is, however, important to ensure that the inspection of your ceiling is frequent. One of the most common issues that may arise is cracking. Below are causes and some tips on how you can fix these problems yourself. 

What causes cracks in the ceiling?

Cracks in the ceiling can be caused by many different factors. These factors come in different impact levels. Some of them are normal but some quite serious! Below is a list of factors that could cause a ceiling to crack.


Did you know that all buildings sway? Yup; they do but only slightly such that you don’t even feel it. If your home sways like the one in the video below then you need to call a structural engineer real fast because you might be having serious potentially dangerous underlying causative issues.  

Structural movement is mostly caused by strong winds blowing against walls and roofs. Force applied by the strong winds coming from different angles cause the house structure to deflect and sway. Sometimes the winds are too strong that they cause the brittle parts of the building structure to crack. Brittleness describes the property of a material that fractures when subjected to stress but has a little tendency to deform before rupture. Brittle materials are characterized by little deformation, poor capacity to resist impact and vibration of load, high compressive strength, and low tensile strength. In simple terms, the cracks in the ceiling are usually just the building releasing acquired stress.


According to Williams Brothers drywall cracks occur on the seams, where two pieces of drywall meet. Usually, the seams are invisible due to the use of drywall filla foam and tape. The mud fills in the seam, and the tape covers it up. Cracks form due to stress placed on the seams. These cracks tend to occur around high-stress areas like windows, door frames, and corners.


Materials expand or contract when subjected to changes in temperature. Most materials expand when they are heated, and contract when they are cooled. When free to deform, ceilings will expand or contract due to fluctuations in temperature. The expansion and contraction with changes in temperature occur regardless of the structure’s cross-sectional area.

Temperature fluctuations can cause the drywall to expand and contract creating stress that cracks the seams. The building is always settling, and this causes stress in the walls that can create a crack in the drywall. Settling can be worse if the building is constructed on fill-dirt. This soft material at the foundation leads to more settling and movement.

When things warm up, they expand and when they cool down, they contract. Different materials expand and contract at different rates. So, what this means is that during the day every item included in your house structure warms and expands slightly. The different materials needed to build a house include, metal, brickwork, wood, concrete, plaster, and stone. All these materials expand and contract to different degrees and at different rates. Cracking happens when they all start cooling down at different rates.


Nail popping can be avoided by choosing high-quality lumber for the studs of the wall. Nail popping can be caused by the warping of the studs, so using higher quality lumber will prevent this warping. You can also apply an adhesive on the studs before hanging the drywall to make sure it will not pull away. Using more nails can help distribute the stress and prevent the nails from pulling away from the stud.

Solution 1

According to pops are caused when construction nails work themselves loose, literally popping out from the surface of the drywall. The popped nail pushes out a bit of drywall or paint, creating a small bump or crack. Every home gets nail pops. If you get one, you need to fix it.

Materials needed:




Nail set, 4.2mm x 40mm drywall screws

Drywall compound

Putty knife.

)O( Drive new drywall screws a couple of inches on either side of the nail pop.

)O( Be sure to put the screws into the wall stud or ceiling joist.

)O( The screws will tighten the drywall. The new screws should barely dimple into the drywall.

)O( Drive a new nail immediately adjacent to the popped nail using the hammer and nail set.

)O( Apply a coat of compound over the new fasteners and the old nail.

)O( With the 6-inch taping knife, make the coating smooth and flat. Let the compound dry completely.

)O( Sand the patch. Lightly sand the patch with the fine-grit sandpaper.

)O( Apply a second coat of fillafoam. Let the compound dry, and then lightly sand it again.

)O( Paint over the patch with primer. Don’t skip this step or you’ll end up with a permanently goofy-looking, non-matching area.

)O( Apply some touch-up paint to the patch in your wall color.

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