What is the key to building longevity? For the Romans, with structures still standing 2,000 years later, it was self-healing concrete. In the U.S., where the average age of commercial buildings qualifies them for an AARP card, the key to longevity is preventative maintenance. Sealants protect buildings and prevent water, air, and other environmental elements from seeping in and wreaking havoc. When left unchecked, external elements can significantly damage your building’s structural integrity and shorten its lifespan. This article will guide you through the optimal timing to replace building sealant, signs of sealant failure, and actionable advice to ensure your building’s longevity and aesthetic appeal. Building Sealant Application and Lifespan Most commercial buildings in the U.S. are in the “old-age” phase of the building life cycle, with an average age of over 53. A condo in Honolulu shows that buildings have the potential to last hundreds of years through a proactive approach and by addressing warning signs before they lead to significant problems. Sealants aim to keep unwanted water, pests, and potentially hazardous pathogens at bay. These applications are an industry staple, but they don’t last forever. They require inspection, reapplication, and replacement to ensure effective weatherproofing and waterproofing. There are two main types of sealants to consider, each offering distinct advantages. Silicone sealants are known for their durability, flexibility, and resistance to temperature variations and UV light, making them ideal for use on glass, metal, or tile surfaces. More of a joint compound than a sealant, silicone dries fast…