Best Caulk for Exterior of House

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If you’re a homeowner, you know the importance of keeping your house in good condition. One of the ways to do this is by sealing up gaps and cracks around the exterior of your home with caulk. But with so many types of caulk available, it can be overwhelming to choose the right one. In this blog post, we’ll discuss the best caulk for the exterior of your house.

Silicone Caulk

Silicone caulk is a popular option for exterior use because of its durability and flexibility. It can withstand extreme temperatures and weather conditions without cracking or shrinking. It’s also waterproof, making it ideal for areas that are exposed to moisture like windows, doors, and siding. However, it can be more difficult to apply than other types of best caulk for exterior of house.

Polyurethane Caulk

Polyurethane caulk is another great option for exterior use. It’s flexible and can expand and contract with changes in temperature and weather conditions. It’s also waterproof and can be used on a variety of surfaces including wood, metal, and masonry. It’s easy to apply and can be painted over once it’s dry. However, it can be more expensive than other types of caulk and may not be as easy to find.

Acrylic Latex Caulk

Acrylic latex caulk is a popular choice for interior use, but it can also be used on the exterior of your home in areas that aren’t exposed to direct moisture like trim and baseboards. It’s easy to apply and can be painted over once it’s dry. It’s also affordable and readily available at most home improvement stores. However, it’s not as durable as silicone or polyurethane caulk and may need to be replaced more frequently.


Choosing the right caulk for the exterior of your house is important to ensure that your home is protected from the elements. Silicone, polyurethane, and acrylic latex caulk are all great options, depending on your specific needs. Consider the location of the area you’re caulking and the type of surface before making your decision. With the right caulk, you can keep your home in good condition for years to come.

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