Portugal Beige Limestone can be used for exterior applications in cold climates, but there are a few considerations to keep in mind. Limestone is a natural stone that is susceptible to weathering and freeze-thaw cycles. In cold climates, where temperatures fluctuate between freezing and thawing, there is a potential risk of the limestone cracking or deteriorating over time.

To minimize the risk, it is important to select a high-quality grade of Portugal Beige Limestone with good frost resistance. Additionally, proper installation techniques should be followed, including ensuring proper drainage and using appropriate sealants or waterproofing products. Regular maintenance and sealing of the limestone may also help to protect it from the effects of temperature fluctuations and harsh weather conditions.

It is recommended to consult with a professional stone supplier or installer who can provide specific guidance and recommendations based on your climate and application requirements.