10 Best Caulk For Metal Roof of August 2025

• 100% WATERPROOF & WEATHERPROOF: 100% silicone formula offers excellent protection from water damage, providing a reliable seal in areas prone to consistent water and weather exposure
• 10-YEAR MOLD-FREE PRODUCT PROTECTION: Protects against stain-causing mold and mildew growth
• FAST CURE & TACK-FREE TIME: Offers 30-minute tack-free time and full cure within 24 hours to keep projects on schedule
• EXCELLENT FLEXIBILITY & STRONG ADHESION: Provides a flexible, durable and long- lasting seal
• FREEZE & SUN-PROOF: Resists freezing temperatures and UV degradation for a permanently flexible seal
• 30-MINUTE RAIN-READY: Ready for rain exposure in as little as 30 minutes
• WON’T BLEMISH METALS: Will not discolor most high-end metal finishes like chrome, bronze and nickel
• BACKED BY A LIFETIME GUARANTEE: Get high-quality results, guaranteed for as long as you own your home
• NON-PAINTABLE: Designed for applications in which the seal or area will not need to be painted
• See product packaging images provided on this product page for complete performance and warranty information

GE Sealants & Adhesives

• Adheres to Kynar coated metals
• Applies easily in extreme weather conditions
• Excellent adhesion to most common building materials
• UV-resistant
• VOC-compliant

Titebond

• 3-hour rain-ready
• Sun-/freeze-proof
• TYPICAL USES: Steel sheds, metal roofs, trailers, recreational vehicles, gutters and other metal surfaces
• Adheres to: Most aluminum, stainless steel, masonry, brick, concrete, granite and metal
• Why 100% silicone? Unlike acrylic, silicone is permanently: waterproof, flexible, shrink-/crack-proof

GE Sealants & Adhesives

• Excellent for general roof repairs
• Resists cracking
• Up- and water-resistant
• Cold weather and wet surface application
• 10 fl oz (295 ml)

Loctite

• Premium grade, fully certified silicone adhesive sealant outperforms cheap hardware store brands; 1 Aluminum 10.3 oz Tube, Model 63700000003
• Waterproof adhesive bonds better than generic sealants; wonÕt peel, reduces service call-backs for leaks; air-cures overnight; tack-free in 15 min
• Standard formula is serviceable from Ð80¡ F to 400¡ F (Ð62¡C to 204¡ C); meets Federal and NSF standards for food service use
• Easy to use: RubbaSealª adhesive sealant wonÕt sag during application. Apply vertically, horizontally or overhead
• One-piece, 10-oz. rigid plastic cylinder fits all standard caulking guns; Nozzle is removable for easy cleaning and reuse after tube is opened.

Kason

• Adheres To Kynar Coated Metals
• Applies Easily In Extreme Weather Conditions
• Excellent Adhesion To Most Common Building Materials
• Uv-Resistant

Titebond

• Adhesives & Sealants
• Country of manufacture: United States
• Manufacturer: Dap Nsf Commercial Kitchen Silicone
• Meets FDA Rag 21 and CFR 177.2600
• Certified NST to NST/ANSI Standard #51
• Simple and easy to apply

DAP

• Minimal shrinkage
• Flexible seal resists cracking, crumbling and chalking
• Unaffected by tempreture extremes once cured
• 9.8 ounce cartridge
• Waterproof, weatherproof, won't crack, crumble or dry out
• Interior/exterior use.
• 50 Year Durability Guarantee.
• Meets Fed. Spec TT-S-001543A, class A
• Meets requirements of FDA Regulation number 21 CFR 177.2600 and CID-A-A-272, Type IV

DAP

• Sealant comes in a 9 oz. Cartridge, is intended for exterior applications only, VOC compliant, backed by a lifetime guarantee, has a low odor, and meets ASTM C920 Type s grade NS class 25
• Gutter and flashing point sealant can be applied to wet or dry surfaces and even in the most extreme of temperatures, like 20-degrees to 120-degrees Fahrenheit
• Thanks to its Crystal Clear Color, the sealant will blend in seamlessly with nearly all types of building material substrates

DAP

• Titebond WeatherMaster Metal Roof Sealant is specifically formulated to outperform all other sealant technologies, including VOC solvent, silicones, tripolymers and urethanes. This superior polymer formula provides a weather-tight seal against water, wind, dust and dirt. It offers exceptional adhesion to Kynar coated metal materials, along with standard metal, aluminum, steel, galvanized bonderized surfaces, plastics and glass.
• The product is ideal for use on a wide variety of metal roof, trim, architectural metal siding, aluminum, galvanized steel, galvanized gutters, flashing and downspouts, but also provides unbeatable adhesion to wood, masonry, PVC and most common building materials.
• This sealant extrudes in extreme weather conditions (down to 0°F/-18°C) and is UV-resistant, making it the ideal choice for exterior applications. It will expand and contract with the change of weather and temperature and will not crack.
• Titebond WeatherMaster Metal Roof Sealant contains no solvents or isocyanates, is VOC-compliant, and is available in over 80 colors - all of which match today’s popular metal roof and metal siding colors, regardless of material or manufacturer.

Titebond