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As a homeowner, you want to keep your property safe from water damage. But even with a minor crack on your roof, water can seep inside your home. Roof caulk plays a big role in protecting your home from water damage.
At McClellands Contracting and Roofing, LLC, we are a team of experienced roofing professionals serving Pittsburgh homeowners. We've seen firsthand how quality roof caulk sealant can prevent minor issues from becoming major expenses.
But with so many options on the market, you might not know where to start. So, here we will overview some popular roofing caulk options that you can choose for your project.
#1 Henry® 884 Tropi-Cool® White Silicone Roof Sealant
The Henry 884 Tropi-Cool White Silicone Roof Sealant has consistently proven itself as a top performer on the market. This professional-grade sealant offers great value at an affordable price.
It can create an instant waterproof seal even on wet surfaces, which is an important feature during emergency repairs in Pittsburgh's unpredictable weather.
The 100% silicone formula provides unmatched flexibility and UV resistance, while its broad temperature application range (35 degrees to 120 degrees) makes it practical for year-round use.
Perhaps most impressively, it maintains its effectiveness even in standing water, making it ideal for low-slope roofs where water tends to pool.
#2 Liquid Rubber Sealant & Adhesive Caulk
Liquid Rubber Sealant & Adhesive Caulk is a high-quality, versatile product that will not sag, slump, or drip during application or over time. Available in both clear and white, this roof caulk can be used on various exterior surfaces including asphalt and concrete.
This sealant is also paintable and does not shrink or become brittle over time, guaranteeing a long-lasting repair. It is UV-resistant and completely waterproof making it ideal for most outdoor applications.
#3 DAP Black Exterior Roofing Blacktop & Roof Sealant
This high-performance roofing caulk creates a watertight seal that effectively resists oil, gas, grease, and road salt. It can adhere to multiple surfaces, including asphalt, wood, metal, masonry, and fiberglass.
You can apply this roofing caulk in both wet and dry conditions, making it practical for our state's unpredictable weather. Each tube covers up to 55 linear feet, offering excellent value for your money.
This best roofing caulk option resists UV damage and extreme temperatures without hardening or cracking. It's also mold and mildew-resistant, non-toxic, and is paintable in one hour. For a durable, long-lasting roof caulking solution that protects your home year-round, DAP provides outstanding performance.
#4 Sashco Through the Roof! Clear Paintable Solvent Caulk
Sashco through-the-roof is a really nice roofing caulk for fixing leaks in tough conditions. What makes it special is that it works even when surfaces are wet, something other caulk can't handle. You can use it on most roofing materials, such as metal, tiles, asphalt shingles, wood, and more.
The sealant is super strong and lasts a long time. Plus, it stays clear instead of turning yellow in the sun. If you need to paint over it later, no problem - it takes paint well.
It's pretty easy to work with; you'll need a regular caulk gun, and it can be applied even when it's cold (down to zero degrees). Once you apply it, it’s quick to dry, but give it a week to fully set. Clean-up is simple with paint thinner if you make any mistakes.
#5 Loctite PL Roof and Flashing Polyurethane Sealant
Loctite PL Roof and Flashing Polyurethane Sealant is a professional-grade roof caulking product that is specifically designed to handle challenging weather conditions while maintaining a weatherproof seal that lasts.
What makes this roof sealant stand out is its impressive flexibility. This means your caulk for roof applications will move with your home as temperatures change. Otherwise, you might find yourself dealing with costly leaks and repairs.
The polyurethane formula in this product creates a permanent, durable seal that stands up to harsh UV rays and extreme weather. The low VOC formula of this product also meets strict environmental guidelines.
Best of all, there's no primer needed, you just apply it and let it cure for a lasting, weatherproof barrier. Whether you're sealing gaps around your chimney or weatherproofing expansion joints, this rubber roof caulk creates a tough seal.
How To Apply Roofing Caulk Properly?
The success of any roofing caulk application begins before any product is applied. Proper surface preparation, which is often overlooked by DIYers, can be the difference between a seal that lasts for years and one that fails within months.
#1 Thoroughly Clean The Application Surface
Start by thoroughly cleaning the application area, removing not just visible dirt but any oxidation, old caulk, or loose materials that could compromise adhesion. In Pittsburgh's humid climate, ensuring the surface is completely dry is particularly important as even the best moisture-tolerant caulks perform better on dry surfaces.
#2 Consider The Temperature
Temperature considerations are more than just checking the weather forecast. The surface temperature of your roof can be significantly higher than the air temperature on sunny days, potentially affecting caulk application and curing.
We recommend applying most roofing caulks when surface temperatures fall between 50 and 90 degrees for optimal results. Working in these conditions allows proper flow and tooling while ensuring appropriate cure times.
#3 Apply The Roofing Caulk
Then cut the nozzle at a 45-degree angle and size the opening to match your gap, typically, you want the bead width to be slightly wider than the gap you're sealing. Apply steady pressure as you move the caulk gun, maintaining a consistent speed to ensure uniform coverage.
#4 Tool The Bead
Tool the bead within 10 minutes of application, using a rounded tool or your gloved finger to press the caulk firmly into the joint and create a smooth, professional finish.
Remember, if you aren’t sure how to apply roofing caulk or are uncomfortable working on your roof, calling a professional is always the better option.
Also Read: What Is The Best Caulking For Windows?
Call McClellands Contracting and Roofing, LLC For Professional Roof Repairs In Pennsylvania
If you are looking for durable and sturdy roof repairs in Pittsburgh and the surrounding areas of Pennsylvania, we are here to assist you. At McClellands Contracting and Roofing, LLC, we stand strong on our commitment to serving our state with top-quality roofing services.
Our team only uses the best materials and practices. From roof repairs to full roof replacement, we have you covered. To schedule a free roof inspection, call us at (412) 353-5660.
Frequently Asked Questions
A. While manufacturers often claim their products last 20 years or more, real-world performance generally ranges from 5 to 10 years, depending on environmental conditions and application quality. Factors like direct sun exposure, temperature extremes, and physical stress can all impact longevity.
A. While it's possible to apply certain roofing caulks in lower temperatures, it's important to choose products specifically formulated for cold-weather application. These products maintain their flexibility and adhesion properties even in challenging conditions, though they might require longer cure times.
A. When choosing a roofing caulk, three main things really matter. First, it needs to be truly waterproof. Not just for light rain, but for serious storms and standing water. Second, it should stay strong and flexible no matter how hot, cold, or sunny it gets. Third, it should be easy to use in different temperatures and conditions. These features make the difference between an OK product and a great one.
