If you’re looking for a way to help protect your home from the elements, caulk is a great place to start. Caulk can seal gaps and cracks around your windows and doors to help keep out drafts and moisture. But with so many different types of caulks on the market, how do you know which one to choose?
Before buying any caulk for the exterior of your house, there are a few factors you should consider. First, think about the type of surface you’ll be applying the caulk to. Is it wood, vinyl, metal, or brick? Different types of caulks work better on different surfaces. Second, consider the climate in your area. If you live in a region with harsh winters or hot summers, you’ll want to make sure to choose a caulk that can withstand extreme temperatures. Finally, think about the size of the gap you’ll be filling. Some caulks are better suited for larger gaps, while others are better for smaller ones.
If you’re still not sure which caulk is right for your exterior home improvement project, ask yourself a few questions. Are you looking for something that will last a long time? Do you want a caulk that is easy to apply? Are you concerned about the environmental impact of the caulk you choose? By answering these questions, you can narrow down your options and find the best caulk for the exterior of your house.
10 Best Caulk For Exterior Of House
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1
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This product is ideal for sealing and caulking gaps in wood, masonry, and other porous surfaces.
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2
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It's ideal for filling gaps and cracks in various surfaces such as walls, ceilings, windows, doors, and trim.
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3
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Sealing gaps and cracks in wood, concrete, masonry, and metal surfaces that require flexibility due to natural movement.
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4
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This product is ideal for sealing indoor and outdoor surfaces.
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5
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The product is ideal for sealing gaps and cracks in windows, doors, and siding that may be subject to movement or expansion.
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6
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The product is ideal for sealing and filling gaps in masonry, concrete, wood, and metal surfaces.
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7
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The product is ideal for repairing mortar and stucco, providing flexibility and durability.
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8
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Ideal for sealing windows, doors, and siding with a strong bond, waterproof seal that is paintable and resistant to harsh weather.
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9
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The product is ideal for sealing windows and doors with a siliconized acrylic caulking that comes in a white color and 10.1 oz.
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10
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This product is ideal for sealing and caulking a wide range of indoor and outdoor surfaces.
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1. Sashco 10012 10.5oz Sashco Sealants 10.5-Ounce Redwood Big Stretch Caulk & Seal, 10.5-Ounce

Looking for a reliable and durable sealant for your interior or exterior projects? Look no further than this super-elastic sealant that is sure to get the job done. This sealant is specially designed to resist cracking, tearing, or pulling away, providing a long-lasting and secure seal.
One of the best things about this sealant is its paintability, allowing you to seamlessly blend it into your project and achieve the perfect finish. Plus, it's incredibly easy to clean up with just soap and water, making it a hassle-free addition to any home renovation project.
This sealant is water-based, making it an eco-friendly and safe choice for your family and pets. And with 13 colors to choose from, you can find the perfect match for your project.
Don't settle for less when it comes to sealants. Choose this super-elastic and versatile option for your next project and enjoy a reliable and long-lasting result.
2. Dap 18128 Alex Plus Acrylic Latex Caulk Plus Silicone 5.5-Ounce

The All-Purpose Acrylic Latex Caulk Plus Silicone is a reliable and versatile product that provides a long-lasting waterproof seal. This caulk boasts exceptional flexibility and durability, making it ideal for a wide range of interior and exterior applications.
One of the standout features of Alex Plus is its strong multi-surface adhesion, ensuring that it securely bonds to a variety of surfaces. Unlike other caulks, it won't shine through or discolor paint, making it an excellent choice for use in painting projects.
Once cured, this acrylic latex sealant is mold and mildew-resistant, preventing unsightly growths from appearing in damp environments. Additionally, it is low in odor and cleans up easily with water, making it a practical and convenient option for those who want to avoid harsh chemicals.
Another impressive aspect of this caulk is how quickly it dries. In just 30 minutes, it can be painted over, making it a time-efficient solution for individuals with busy schedules.
This product has a 35-year durability guarantee, giving consumers peace of mind knowing that their investment will last for years to come. Overall, the All-Purpose Acrylic Latex Caulk Plus Silicone is a top-performing product that delivers exceptional results.
3. Sashco 10024 Big Stretch Caulk Pine Green 10.5-Ounce

The super-elastic sealant is the perfect solution for all your sealing needs. Its unique formulation ensures that it won't crack, tear or pull away, making it an ideal choice for both interior and exterior use. The sealant's ability to stretch and move with the surface it's applied to makes it highly durable and long-lasting.
The sealant is also paintable, which means you can match it with the color of your walls or any other surface you've applied it to. This makes it a great option for those looking to achieve a seamless finish. Regardless of the color you choose, the sealant will maintain its elasticity and won't crack or peel.
Cleaning up after using the sealant is a breeze. Simply use soap and water to wipe away any excess and restore the surface to its original state. This makes maintenance easy and hassle-free.
The sealant is water-based, which makes it environmentally friendly and safe to use. It's free from any harmful chemicals commonly found in other sealants, making it a great option for those looking for a healthier alternative.
With 13 colors to choose from, you're sure to find the perfect shade to match your project. The sealant's super-elasticity, paintability, easy clean-up, and water-based formulation make it an excellent choice for all your sealing needs.
4. Dap 18304 12 Pack 10.1-Ounce Dynaflex 230 Premium Indoor/outdoor Sealant, Clear

Introducing the 10.1oz Clear Latex Sealant, an exceptional product designed to meet your caulking and sealing needs. Proudly made in the United States, this sealant is a perfect combination of silicone performance and latex ease of use, making it an ideal solution for all your sealing requirements.
With its superior permanent adhesion and flexibility, this clear sealant is perfect for use on various surfaces, including metals, wood, tiles, and plastics. You can confidently use it for indoor and outdoor projects, knowing that it will provide long-lasting protection against weather and moisture.
This 10.1oz Clear Latex Sealant is perfect for use in both commercial and residential settings, from sealing windows and doors to fixing leaks in bathrooms and kitchens. Its versatility makes it an excellent choice for DIY enthusiasts, handymen, and professionals alike.
This product is easy to apply, and the clear color ensures that it blends seamlessly with the surface being sealed, leaving no unsightly residue. The sealant can also be painted over, adding to its versatility and ease of use.
5. Sashco 10008 Big Stretch Caulk Dark Brown 10.5-Ounce

Looking for a versatile and durable sealant for your home renovation or DIY project? Look no further than this super-elastic, paintable sealant that can be used both indoors and outdoors. With its advanced formula, it won't crack, tear, or pull away even under extreme conditions, giving you peace of mind that your project will stand the test of time.
One of the key advantages of this sealant is its easy clean-up. Simply use soap and water to remove any excess sealant or to clean up spills, making it a practical and convenient choice for any DIY enthusiast or professional contractor.
This sealant is also water-based, making it an environmentally friendly option that won't harm the planet or release any harmful chemicals into the air. And with 13 different colors to choose from, you can easily find the perfect match for your project, whether you're sealing windows, doors, trim, or any other surface.
So why settle for a subpar sealant that won't hold up over time? Choose this durable, versatile, and easy-to-use sealant for all your interior and exterior sealing needs. You won't be disappointed!
6. Red Devil 0777 Lifetime Ultra 230 Premium Elastomeric Acrylic Latex Sealant, 10.1 Oz, Clear

This high-quality caulk comes with a lifetime durability guarantee, ensuring that your home remains in top-notch condition for years to come. Designed for both interior and exterior use, this versatile product can be applied to a wide variety of surfaces.
One of the standout features of this caulk is its superior paintability. Once applied, it delivers a professional-looking finish that is sure to impress. Additionally, it offers superior adhesion and flexibility compared to other caulks, meaning that it will not shrink or crack over time.
Please note that the clear version of this product will initially extrude as white, but will dry clear within two weeks. With its impressive parameters and specifications, this caulk is a must-have for any homeowner looking to keep their home looking its best.
7. Sashco 15010 10.5oz Sashco Sealants Beige Morflexx Mortar & Stucco Repair, 10.5-Ounce

Introducing a top-quality Mortar and Stucco Repair Sealant, perfect for repairing cracks and gaps on masonry surfaces. This reliable and durable sealant is a go-to solution for any homeowner or contractor who needs a quick and effective fix for their stucco or mortar.
The product's part number is 15010, making it easy to find and identify. Proudly made in the United States, you can trust that this product is manufactured to the highest quality standards, ensuring that you get the best value for your money.
This versatile sealant is specially formulated to adhere to all types of masonry surfaces, including concrete, brick, and stucco. It is easy to apply and dries quickly, ensuring that your repair job is completed in no time. Plus, the sealant is designed to be long-lasting, providing a strong and reliable bond that will stand up to the elements.
Whether you need to repair small cracks or fill large gaps, this mortar and stucco repair sealant is the perfect solution. It is suitable for both indoor and outdoor use, making it ideal for a wide range of applications. Plus, it is easy to paint over, so you can match it to your existing masonry surfaces seamlessly.
8. Loctite Pl Window, Door & Siding White Polyurethane Sealant, 10 Fl Oz, Cartridge

Introducing a highly versatile and reliable solution for expansion joint applications – the Expansion Joint Sealant. Designed to withstand the most challenging environments, this sealant is a one-time application that ensures long-lasting protection for your surfaces.
One of the key benefits of this sealant is its ability to accommodate up to ± 25% movement, making it ideal for use on expansion joints. This feature ensures that your surfaces remain intact and protected, even in areas with high levels of traffic and constant movement.
In addition to its impressive flexibility, the Expansion Joint Sealant is also known for its exceptional durability. It can withstand harsh weather conditions, extreme temperatures, and exposure to UV radiation without losing its effectiveness. This makes it a reliable choice for outdoor applications such as parking lots, sidewalks, and driveways.
Another advantage of this sealant is its ability to blend seamlessly with its surroundings. Its natural color and texture make it virtually invisible once applied, ensuring that it does not detract from the aesthetic appeal of your surfaces.
Finally, the Expansion Joint Sealant is fully compliant with the stringent Federal and State regulatory requirements. This means that you can use it with complete peace of mind, knowing that it meets all the necessary safety and quality standards.
9. Red Devil 0846 Window & Door Siliconized Acrylic Caulk, 10.1 Oz, White

This versatile product is a must-have for any homeowner or DIY enthusiast. The 10.1 oz white caulk is perfect for sealing windows, doors, and siding. It has a smooth and elegant finish, giving your home a professional look.
This product is manufactured in China and is designed to handle larger or multiple jobs with ease. The advanced siliconized acrylic formula ensures a long-lasting and durable seal. It helps increase energy efficiency by reducing drafts and cold spots, saving you money on your energy bills.
The 10.1 oz cartridge size is ideal for those larger jobs that require more sealant. The product is user-friendly, with water clean up for easy use. It comes with a 35 year limited warranty, giving you peace of mind that this product is built to last.
10. Sashco Big Stretch Acrylic Latex High Performance Caulking Sealant, 10.5 Oz Cartridge, Clear

Looking for a reliable and long-lasting sealant for home improvement projects? Look no further than this flexible caulk with a range of impressive features.
This professional-grade sealant is specifically designed to withstand a home’s natural movement, ensuring that it won't become brittle or cracked over time. This means you can avoid repeated repairs and enjoy peace of mind knowing that your sealant will keep your home secure and weatherproof.
Not only is this sealant highly durable, but it is also waterproof and permanent, ensuring that it keeps the weather outside where it belongs. Its powerful adhesion and extreme elasticity allow it to stick, twist, bend, compress, and stretch to more than 500% of its original size, making it a reliable option for all your sealing needs.
Plus, this acrylic caulk is also paintable, allowing you to seamlessly integrate it into your home décor. Paint adheres to this sealant like a pro, ensuring that your surface looks aesthetically pleasing and cohesive.
Best Caulk For Exterior Of House FAQs
Can caulks be painted over after application on the exterior of a house?
Yes, it is possible to paint over caulks that have been applied on the exterior of a house. However, it is important to note that not all types of caulks are suitable for painting. It is recommended to use a paintable caulk specifically designed for exterior use.
Before painting over the caulk, it is important to make sure that it is completely dry and cured. This can take anywhere from 24 hours to several days depending on the type of caulk and the weather conditions.
To ensure a smooth and even finish, it is also recommended to apply a primer before painting over the caulk. This will help the paint adhere better and prevent it from peeling or cracking over time.
Overall, painting over caulks on the exterior of a house can help improve the appearance and protect against weather damage, but it is important to use the right type of caulk and follow proper painting procedures for the best results.
How do I choose the best caulk for the specific needs of my house's exterior?
Choosing the best caulk for your house's exterior is important to ensure that it provides the best protection against water, air, and pests. Here are some factors to consider when selecting the right caulk for your specific needs:
1. Type of caulk: There are different types of caulk available in the market, including silicone, latex, polyurethane, and butyl rubber. Each type has its own strengths and weaknesses, so it's important to choose a caulk that suits your specific needs.
2. Weather resistance: Consider the climate in your area and choose a caulk that can withstand extreme temperatures, humidity, and rain. Silicone and polyurethane are good options for areas with harsh weather conditions.
3. Flexibility: Choose a caulk that remains flexible over time, as this will allow it to expand and contract with changes in temperature. This will prevent cracking and ensure that the caulk remains effective for a longer period.
4. Adhesion: Look for a caulk that has good adhesion to different surfaces, including wood, metal, and masonry. This will ensure that the caulk stays in place and provides a tight seal.
5. Paintability: If you plan to paint over the caulk, choose a product that is paintable and matches the color of your home's exterior.
By considering these factors, you can choose the best caulk for your specific needs and ensure that your home's exterior is well-protected against the elements.
How long does the best caulk for exterior use typically last?
The lifespan of the best caulk for exterior use largely depends on various factors such as the type of caulk used, the weather conditions, and the quality of installation. Generally, high-quality caulk can last from 10 to 20 years or more depending on the circumstances. For example, silicone-based caulk is known for its durability and can last up to 20 years or more. On the other hand, water-based caulk may last around 5 to 10 years.
It is important to note that proper installation is crucial for the longevity of the caulk. The surface should be thoroughly cleaned and dried before applying the caulk. Any cracks or gaps should be filled completely with the caulk, and excess should be removed to ensure a smooth finish.
Regular maintenance and inspection can also help extend the life of the caulk. Any signs of cracking, peeling, or shrinkage should be addressed promptly by reapplying the caulk. Overall, choosing the best caulk for exterior use and ensuring proper installation and maintenance can significantly increase its lifespan.
What are the benefits of using silicone-based caulks for exterior use?
Silicone-based caulks are a popular choice for exterior use because of their numerous benefits. One of the main advantages is their excellent resistance to extreme weather conditions, such as rain, snow, and high temperatures. They also have superb flexibility, which allows them to expand and contract with the changing weather conditions, preventing cracks and gaps from forming.
Additionally, silicone-based caulks are highly durable and can last for many years, even in harsh outdoor environments. They are also resistant to UV radiation, which means they won't break down or discolor over time. This makes them an ideal choice for sealing gaps around windows, doors, and other exterior fixtures.
Another significant benefit of silicone-based caulks is that they are highly water-resistant, preventing moisture from seeping into your home and causing damage. They are also resistant to mildew and mold growth, which helps to keep your home healthy and free of harmful microorganisms.
Overall, using silicone-based caulks for exterior use can provide long-lasting protection and peace of mind, ensuring that your home stays safe and secure for many years to come.
What are the top-rated caulks for exterior use on a house?
When it comes to choosing a caulk for exterior use on a house, there are a few options that are considered top-rated by professionals. One of the top-rated caulks is the OSI Quad Max caulk, which is known for its durability and ability to withstand harsh weather conditions. It is also paintable and can be used on a variety of surfaces.
Another popular option is the DAP Alex Plus acrylic latex caulk, which is also paintable and can be used on a variety of surfaces. It is known for its durability and flexibility, making it a great option for exterior use.
If you are looking for a silicone caulk, the GE Silicone II caulk is a great choice. It is known for its ability to resist mold and mildew, as well as its waterproof properties. It can also be used on a variety of surfaces and is paintable.
Overall, when choosing a caulk for exterior use on a house, it is important to consider factors such as durability, flexibility, and weather resistance. By choosing a top-rated caulk, you can ensure that your exterior surfaces will be protected for years to come.
What is the best caulk for use on brick or stone surfaces?
When it comes to selecting the best caulk for use on brick or stone surfaces, there are a few factors to consider. First and foremost, it is important to choose a caulk that is specifically designed for masonry applications. Silicone or polyurethane-based caulks tend to work well on brick and stone, as they are flexible and can withstand the movement and shifting that can occur in these materials over time.
One popular option for masonry caulking is GE Silicone II Concrete & Masonry Caulk. This caulk is specially formulated to adhere to rough and porous surfaces like brick and stone, and it also offers excellent resistance to water and weathering. Another good choice is DAP Polyurethane Concrete & Masonry Sealant, which is designed to seal cracks and gaps in concrete and masonry and can be used both indoors and outdoors.
Ultimately, the best caulk for your specific project will depend on a variety of factors, including the type of masonry surface you are working with, the severity of the cracks or gaps you need to fill, and your personal preferences in terms of application and performance. It is always a good idea to consult with a professional or read product reviews before making a final decision.
What is the best caulk for use on wooden siding?
When choosing a caulk for wooden siding, it is important to select one that is specifically designed for exterior use and can withstand exposure to the elements. One of the best options is a silicone caulk, as it is waterproof and flexible, able to expand and contract with the natural movements of the wood. It also adheres well to wood surfaces and is resistant to mildew and mold growth.
Another good option is a polyurethane caulk, which is also waterproof and flexible. It has excellent adhesion to wood and can be painted over once it has cured. However, it is important to note that polyurethane caulk typically has a shorter lifespan than silicone caulk and may require more frequent reapplication.
Regardless of the type of caulk you choose, it is important to properly prepare the surface before application to ensure maximum adhesion and longevity. This includes cleaning the area thoroughly and removing any old caulk or debris. It is also important to follow the manufacturer's instructions for application and curing time.
What is the most durable caulk for use on the exterior of a house?
When it comes to choosing the most durable caulk for use on the exterior of a house, there are several factors to consider. Firstly, you want to ensure that the caulk is specifically designed for outdoor use, as it will need to withstand exposure to the elements such as rain, wind, and UV rays. Silicone-based caulks tend to be the most durable for this purpose, as they are flexible and resistant to cracking or shrinking over time. Additionally, look for a caulk that is advertised as being waterproof and mold-resistant, as these features will help to ensure its longevity. Some popular brands that are known for their durable exterior caulks include GE Silicone II and DAP Dynaflex 230. Ultimately, the best choice will depend on your specific needs and the conditions in which the caulk will be used, so it is important to do your research and choose a product that is well-suited to your project.
What is the most weather-resistant caulk for use on the exterior of a house?
When it comes to choosing the most weather-resistant caulk for the exterior of a house, there are several options available. However, silicone caulk is widely considered as the best option for this purpose. Silicone caulk is highly durable and can withstand extreme temperatures, UV rays, and moisture without cracking or shrinking. It is also resistant to mold and mildew growth, making it an ideal choice for areas with high humidity.
Another option is polyurethane caulk, which is also highly resistant to weather and temperature changes. However, it tends to be more difficult to work with and requires special tools and techniques for application.
It is important to note that the effectiveness of caulk depends on proper installation and maintenance. Regular inspection and reapplication may be necessary to ensure that the caulk remains weather-resistant over time. Additionally, it is recommended to choose a high-quality caulk from a reputable brand to ensure maximum durability and performance.
Which caulks are best for filling gaps and cracks in the exterior of a house?
When it comes to filling gaps and cracks in the exterior of a house, it's important to choose the right caulk to ensure a long-lasting and effective seal. The best types of caulks for this purpose are silicone and polyurethane.
Silicone caulks are ideal for areas that are exposed to a lot of moisture, such as around windows and doors. They are highly flexible, which allows them to expand and contract with changes in temperature, and they resist cracking and shrinking.
Polyurethane caulks are also great for exterior use, as they are durable and can withstand harsh weather conditions. They are particularly useful for filling larger gaps and cracks, as they have excellent adhesion and can be painted over once dry.
It's important to note that not all caulks are suitable for exterior use, so be sure to check the product label before making a purchase. Additionally, it's a good idea to clean and prepare the surfaces to be caulked before application for the best results.