Where sealants and adhesives meet

By Jesse Sanchez. 

Learn Dan Garnett’s top tips for sealants and adhesives in metal construction. 

In the ever-evolving world of construction, especially when it comes to metal roofing and paneling, choosing the right sealants and adhesives is crucial for ensuring long-lasting performance and structural integrity. Dan Garnett, from Canadian based company ADFAST, shares his valuable insights on the best options to choose from based on your construction needs in this free METALCON online webinar. 

Sealants: Your first line of defense 

Sealants are essential for preventing leaks and shielding roofs from harsh weather conditions. Dan stresses the importance of picking sealants that can endure extreme temperatures, UV radiation and moisture. He recommends silicone based, moisture curing sealants as they are known for their flexibility, longevity and excellent resistance to weathering, making them a top choice for metal roofing. Conversely, polyurethane or thermoplastic sealants are known for their strong adhesion and durability, although they might not be as UV-resistant or have a long-life expectancy compared to silicone options. 

Adhesives: Maintaining structural integrity 

Adhesives are key to keeping metal panels securely in place. Dan advises choosing adhesives that offer strong bonding capabilities while considering the natural expansion and contraction of metal materials. This is where epoxy adhesives come into play as they are renowned for their robust bonding strength, making them suitable for heavy-duty applications. While those looking for flexibility and ease of use, butyl tape adhesives are often the preferred choice in metal roofing projects. 

Ensuring compatibility and proper application 

Dan drives home the importance of ensuring compatibility between the sealants, adhesives and metal materials used. Given that combining incompatible products can result in premature failures and costly repairs. He recommends conducting thorough compatibility tests and consulting manufacturer guidelines before making a final decision. 

Proper application is as crucial as selecting the right products. Dan suggests a meticulous approach beginning with cleaning and preparing surfaces thoroughly for optimal adhesion, applying products in favorable weather conditions and following manufacturer instructions precisely. He also stresses the importance of conducting regular inspections and performing regular maintenance to catch potential issues early on. 

Dan’s expert tips for application 

1 — Clean and prepare surfaces: Ensure surfaces are clean and dry to guarantee optimal adhesion. 

2 — Weather conditions: Apply sealants and adhesives in suitable weather conditions to avoid issues. 

3 — Manufacturer instructions: Adhere strictly to the instructions provided by manufacturers. 

4 — Regular inspections: Conduct periodic checks to maintain the integrity of the sealants and adhesives. 

Choosing the right sealants and adhesives for metal roofing and paneling is a nuanced task but one that is crucial for the longevity and reliability of your projects. With these insights from Dan Garnett, contractors and builders can approach this selection process with confidence, ensuring their metal applications stand the test of time. Remember, making the right choice today can prevent major problems in the future, protecting both your project and your professional reputation. 

Learn more about how to choose the right sealants and adhesives when designing and building metal paneling and metal roofing here.