TIPS FOR PROPER METAL ROOFING INSTALLATION

As the demand increases for metal roofing, adhesives used to install them are also in demand. Take a look at important adhesive tips to ensure proper metal roofing installation.

Consider Compatibility

It’s important that the chosen metal roofing adhesive is chemically compatible with the roof’s surface components and exhibits sufficient adhesion levels across the system. Incompatibility could compromise the roof’s weather-right integrity, causing performance, durability and longevity issues.

Conduct Long-Term Evaluations

Prior to selecting a metal roofing adhesive, it’s important to evaluate the product more thoroughly than what is noted during initial adhesion testing. This is because long-term evaluation could reveal performance concerns that would otherwise go unnoticed. For example, when under stress or tension, the adhesive might yield to the force or fail adhesively and compromise the weatherseal. A long-term evaluation can avoid this upfront.

Understand Roof Penetrations

Penetrations are likely areas where metal roofs can be compromised, letting in air and moisture. Penetrations include:

• Dormers
• Chimneys
• Vent pipes
• Drains

It’s important to ensure adhesives are properly applied around all roof penetrations during installation for sufficient weathersealing.

Consider Full Roof System Testing

It’s also a good idea to ensure the entire roofing system can perform in extreme weather conditions to reduce damage and injury potential. To address this, some of today’s building codes are incorporating specific weather requirements, especially with regards to wind uplift, and are pre-qualifying roof systems. Given that adhesives play an important role in determining a roof’s overall ability to withstand harsh winds, it’s important to ensure they can pass roof system tests as well.

Use Manufacturer-Recommended Products 

Using adhesives recommended by the manufacturer aids in successful metal roofing system installation, ensuring material compatibility, enhanced roof longevity and performance. Bostik’s metal roofing adhesives meet manufacturer requirements, offering:

• Minimal substrate preparation
• Availability in various package sizes
• Ease of use and extrudability
• Adhesion to Kynar® resin-based coatings

For more information on how these adhesives can improve metal roofing overall, visit www.bostik.com.