Habitation Investigation

CEILING CRACKS AND WINTER

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Battling the Cold: Understanding and Dealing with Ceiling Cracks in Winter

Ahhh winter, the season that my wife hates. Along with the higher heating bills comes dry skin, chapped lips, and cracks in walls and ceilings. 

 

Why Do Ceilings Crack in Winter?

Have you ever noticed those mysterious cracks that seem to appear on your ceiling just when winter rolls around? It’s a common sight in many homes, and while it might seem like a minor inconvenience, the reasons behind these cracks are quite intriguing. So what is the cause of hairline cracks in the ceiling?

Winter’s colder air cannot hold as much moisture as warmer air has the potential to do. As the dryer winter air normally infiltrates the home, the home itself can become dryer. This drying of the home air and the materials used to build the home results in the materials shrinking a bit, and small cracks will form. Typically, you’ll find those pesky cracks where the ceiling meets the wall sections of drywall. This is common and not a structural concern. It is common for Ohio home inspectors to find drywall cracks in winter. The image above is where the ceiling and wall meet in a home where the humidity level was a dry 28%.

The commonly recommended humidity range for a home is 35-50%. If over 60% the chance of mold increases. If the humidity levels are low then the chances of dry skin, chapped lips, dry throats, wall cracks, and static (you do get to zap your friends and family with this) rise.

To increase moisture in the air use a humidifier. These are not expensive and will help out. You can also get a humidifier to attach to the furnace ductwork. These things will work very well. However, if they develop a leak you will not see the leak immediately. Another great way to add moisture to the air is to cook pasta and leave the lid off the boiling water. Not only will you add moisture, but you will also feed yourself.

To keep humidity levels low in the humid months, you will need to use an air conditioner and or a dehumidifier (usually placed in the basement)

 

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