Granite countertops are highly durable and resistant to cracking under normal conditions. However, certain factors can contribute to the development of cracks in granite countertops. These factors include:
Impact or force: Granite is a hard stone, but it is not indestructible. A heavy object dropped onto the countertop or a significant force applied to a specific area can cause the granite to crack. Even though granite is sturdy, it is essential to avoid dropping heavy objects, especially on the edges or corners of the countertop.
Thermal shock: Granite can withstand high temperatures, but extreme and sudden changes in temperature can lead to thermal shock. For instance, placing a hot pan or pot directly on a cold granite surface may cause it to crack. To prevent thermal shock, use trivets or hot pads to protect the granite from direct contact with hot items.
Installation issues: Improper installation can create stress points on the granite countertop, potentially leading to cracks over time. This includes inadequate support or improper leveling during installation. Hiring a professional installer with experience in working with granite is crucial to ensure proper installation.
Substrate issues: The substrate or base on which the granite is installed plays a vital role in the countertop's stability. If the underlying structure is not properly prepared or is uneven, it can cause stress on the granite and lead to cracking.
Natural flaws: While granite is a natural stone, it may have inherent fissures or natural flaws that could become more pronounced over time, especially if subjected to stress or pressure.
Settling of the house: If the house experiences settling or structural movement over time, it could impact the granite countertop and potentially cause cracks.
Poor maintenance: Failing to maintain the granite properly, such as ignoring sealing or allowing water to penetrate the stone, can lead to weakening and cracking over time.
To minimize the risk of cracks in a granite countertop, it's essential to handle the stone with care, avoid extreme temperature changes, have it professionally installed, and maintain it regularly. If you notice any cracks or damage, it's best to address the issue promptly to prevent further deterioration. Consulting with a professional granite fabricator or installer can also provide valuable guidance on proper care and maintenance.