Discover essential tips to fix collapsed, soggy bookshelves and uncover common causes of moisture damage now.

Head of Content, D. Gorenko
Updated June, 5

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Immediate Steps to Take
Tools and Materials Needed
Assessing the Damage
Homeowner Fix or Call a Professional
Deciding on the Right Professional
Safety Warnings and Insurance Tips
Step-by-Step Repair Process
Water can seep into a building from roof leaks, poor window seals, or cracks in walls. When moisture enters, it does not only wet books and other stored items but can also affect the wood and metal of shelves. In areas with heavy rain or during a storm, water may find its way into basements or attics. This excess moisture makes books soggy and can weaken the shelves over time, leading to a collapse.
High humidity in a home or building can cause moisture to build up even without direct leaks. Warm air holds more moisture, and in damp climates or seasons, this excess moisture can settle on surfaces. Books absorb the moisture from the air, making them soggy, and the shelves may warp or degrade. This problem is common even in regions known for variable climates, such as St. Louis and Nashville, where the weather can lead to prolonged periods of high humidity.
Condensation occurs when warm, moist air meets colder surfaces. This can lead to small droplets that, over time, accumulate and cause damp conditions. Books stored on shelves near windows or uninsulated walls may be especially vulnerable. As these droplets begin to accumulate on both the books and the shelves, the materials can soften and swell, increasing the likelihood of a collapse due to the extra weight.
Lack of proper airflow can trap moisture indoors. When rooms do not have good ventilation, moisture from everyday activities like cooking, bathing, or even breathing does not escape. This trapped moisture can eventually settle on shelves and books, creating a damp environment that softens paper and degrades wood. Over time, this buildup of moisture increases the chance for structural failure in shelving systems.
Over time, continuous exposure to moisture can damage the materials used in bookshelves. Wood and engineered products are especially prone to decay when wet. As the material becomes waterlogged, it loses its strength and structural integrity. This deterioration can cause upcoming failure even if the shelf was originally well built. Soggy books add extra weight, and a shelf that has been weakened by water exposure might collapse under pressure.
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Brentwood, MO
1025 Hanley Industrial
Brentwood, MO 63144
Nashville, TN
45 Willow St.
Nashville, TN 37210

St Louis Location
(314) 664-3011
St Louis Location
1025 Hanley Industrial Brentwood, MO 63144
Nashville Location
(615) 515-3015
Nashville Location
45 Willow St Nashville, TN 37210
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