Chinas Lady Grey Marble can be used in exterior applications in cold climates, but it is important to consider a few factors. Lady Grey Marble has a high density and is known for its durability, which makes it suitable for various weather conditions.

However, when using this marble in cold climates, it is crucial to ensure that it is properly sealed. Cold weather, combined with freeze-thaw cycles, can cause water to seep into the stone and expand upon freezing, potentially leading to cracking or damage.

Applying a high-quality sealer can help protect the marble from water absorption and minimize the risk of damage caused by freezing temperatures. Additionally, regular maintenance and resealing should be performed to maintain the stones integrity and longevity.

It is also essential to select an installation method that allows for proper drainage and prevents water from pooling on the surface of the marble. Pooling water can increase the risk of damage in cold climates.

Overall, with appropriate sealing, installation, and maintenance, Chinas Lady Grey Marble can be used effectively in exterior applications in cold climates.