Flexible sealants, such as 100% silicone, are the final barrier in the corners and transitions of your shower where movement is expected. Unlike rigid grout, silicone is designed to expand and contract, which is essential to prevent cracks from forming at the junction where walls meet the floor or other walls. However, over time, these sealants degrade from chemical cleaners, soap, and constant exposure to water. You should make it a habit to inspect these areas once a year for signs of failing adhesion or separation. If you see cracking, peeling, or black mold growing within the caulk, it must be removed and replaced. Leaving damaged caulk in place allows water to penetrate the corner, which can reach the waterproofing membrane behind the tile and cause damage. While every shower is different, 3 to 5 years is a realistic timeframe for replacement, depending on how often the shower is used. When replacing it, be sure to use a high-quality, 100% silicone sealant specifically rated for wet areas and mold resistance, and always clean the joint thoroughly before application.
Key considerations
- replace shower caulk
- how often change silicone
- shower sealant maintenance
- Silicone
- Caulk
- Sealant