The Best Exterior Window Caulk for Your Home: Choosing the Right Caulk for Lasting ProtectionSarah ThompsonFeb 20, 2025Table of ContentsTop Types of Exterior Window CaulkKey Features to Look ForHow to Apply Exterior Window CaulkFAQTable of ContentsTop Types of Exterior Window CaulkKey Features to Look ForHow to Apply Exterior Window CaulkFAQFree Smart Home PlannerAI-Powered smart home design software 2025Home Design for FreeWhen it comes to protecting your home from the elements, selecting the best exterior window caulk is essential. A high-quality caulk not only prevents water intrusion but also improves energy efficiency by sealing gaps around your windows. With various options available, how do you choose the right one? Let’s dive into the top choices and what features to consider.Top Types of Exterior Window CaulkThere are several types of caulk suitable for exterior windows. Silicone caulk is a popular choice due to its excellent waterproof properties and flexibility. It can withstand extreme temperatures and remains durable over time. Another great option is polyurethane caulk, known for its strong adhesion and ability to fill larger gaps.Key Features to Look ForWhen selecting exterior window caulk, consider its durability, weather resistance, and ease of application. Look for caulk that is labeled as paintable if you plan to paint over it. Moreover, ensure it has a long lifespan and is resistant to mold and mildew for added protection.How to Apply Exterior Window CaulkApplying caulk correctly is crucial for achieving a lasting seal. First, clean the area around the window thoroughly to remove any dirt or old caulk. Next, use a caulk gun to apply a steady bead of caulk in the gap, ensuring that it fills completely. Smooth it out with your finger or a caulk smoothing tool for a neat finish. For best results, work on a dry day when temperatures are moderate.FAQWhat is the best exterior window caulk? The best exterior window caulk often depends on your specific needs, but silicone and polyurethane caulks are top contenders due to their durability and weather resistance.How often should I reapply caulk? Inspect your windows annually and reapply caulk as needed, typically every 5-10 years, depending on wear and tear.welcome to CoohomHome Design for FreePlease check with customer service before testing new feature.