"CertainTeed Cement Siding Cracking: Causes and Solutions"

Emily Jul 26, 2026

Concerned about cracks in your CertainTeed cement siding? You're not alone. While cement siding is known for its durability and low maintenance, it can still develop cracks under certain conditions. Understanding why this happens and how to address it can help you protect your home's exterior. Let's delve into the causes of CertainTeed cement siding cracking and provide practical solutions.

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What Are the Most Common Fiber Cement Siding Problems? - Enthralling Gumption

Cement siding, like other building materials, is susceptible to wear and tear over time. However, when used in conjunction with CertainTeed's innovative technology and quality materials, it can provide lasting performance. Yet, cracking can occur due to various reasons. In this article, we'll explore these causes and provide effective strategies to prevent and repair cracks in your CertainTeed cement siding.

Fiber Cement Siding Repair – A Quick Guide for Homeowners
Fiber Cement Siding Repair – A Quick Guide for Homeowners

Common Causes of CertainTeed Cement Siding Cracking

Before we dive into prevention and repair strategies, let's understand the most common culprits behind cement siding cracks.

two pictures side by side showing different types of siding and the same type of damage
two pictures side by side showing different types of siding and the same type of damage

1. **Age and Weathering**: Over time, the constant exposure to sun and rain can cause cement siding to deteriorate, leading to cracking. The porous nature of cement can absorb water, which can then freeze and expand, causing cracks during cold weather.

Expansion and Contraction

Why Small Siding Cracks Can Turn Into Big Problems (and How to Prevent Them)
Why Small Siding Cracks Can Turn Into Big Problems (and How to Prevent Them)

Cement siding is subject to thermal expansion and contraction, especially during extreme temperature fluctuations. This natural movement can result in small hairline cracks, which can widen over time if not addressed promptly.

**Shrinking and Settling**: As the house settles on its foundation, the siding may not settle at the same rate, causing stress and resulting in cracking. Additionally, the cement siding may shrink slightly as it dries and cures, contributing to small cracks.

Impacts andPhysical Damage

Painting hardie boards - ELEGANT PAINTING® - Elegant Painting®
Painting hardie boards - ELEGANT PAINTING® - Elegant Painting®

Physical forces, such as impacts from lawn mowers, ladders, or other objects, can cause immediate and visible cracks in the cement siding. Even low-impact incidents can accumulate over time and result in noticeable damage.

**Installation Issues**: Incorrect installation, such as using the wrong nails or spacing the siding too tightly, can lead to cracking. Manufacturing defects, although rare with CertainTeed products, can also cause issues.

Preventing CertainTeed Cement Siding Cracks

Surprising Method to Fix Siding Cracks Fast
Surprising Method to Fix Siding Cracks Fast

Preventing cracks in your cement siding is always the best course of action. Here are some strategies to keep your siding in top condition.

**Maintain Proper Spacing**: Ensure your siding is installed with adequate spacing to allow for natural expansion and contraction. Follow CertainTeed's installation guidelines to prevent excessive stress on the siding.

The Unexpected Exterior Renovation We're Currently Considering - Made by Carli
The Unexpected Exterior Renovation We're Currently Considering - Made by Carli
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How to Caulk Neatly
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Avoid Physical Damage

Be mindful of activities around your home that could cause impact damage. Regularly inspect your siding for signs of wear or damage from branches, hail, or other objects.

**Seal Cracks Promptly**: When small cracks do appear, seal them quickly with a suitable cement siding caulk to prevent water intrusion and further damage. Always choose a caulk specifically designed for cement siding to ensure a durable bond.

Maintain Proper Moisture Management

Prevent water from getting trapped behind your siding by ensuring gutters and downspouts are functioning correctly. This helps maintain the siding's integrity and prevents moisture-related cracks.

**Monitor Your Home's Settlement**: Keep an eye on your home's foundation for signs of settling or movement. Address any underlying foundation issues promptly to prevent them from affecting your siding.

Repairing Cracks in CertainTeed Cement Siding

Even with preventive measures, cracks can still occur. Fortunately, repairing cement siding cracks is a relatively straightforward process.

Repairing Small Cracks

For hairline cracks or minor damage, use a caulk specifically designed for cement siding. First, clean the area around the crack, then apply the caulk and smooth it with a putty knife. Allow it to dry completely before painting if necessary.

**Repairing Larger Cracks or Damaged Sections**: For more extensive damage, you may need to replace the affected section of siding. Start by removing the damaged section, following CertainTeed's guidelines for cutting and flashing. Cut a new piece of siding to fit the opening, ensuring it has the proper nailing hem. Install the new piece, following the same installation techniques as the original siding.

Professional Repairs and Inspections

If you're unsure about the extent of the damage or lack the confidence to perform the repairs yourself, consult a professional. A reputable siding contractor can assess the damage and make the necessary repairs to maintain your home's exterior.

Regularly inspect your CertainTeed cement siding, and address any issues promptly to preserve its durability and appearance. By staying proactive, you can extend the lifespan of your siding and maintain your home's curb appeal. If you notice any cracks or other signs of damage, don't wait – take action to prevent further damage and maintain your home's value.

Remember, preventative maintenance is key when it comes to cement siding. By staying vigilant and addressing any issues promptly, you can protect your investment and ensure your CertainTeed cement siding continues to look and perform its best for years to come. So, grab your maintenance checklist, and let's make keeping your home in tip-top shape a priority.