1.5” Mechanical Seam vs. 2” Mechanical Seam 

Written By Alsteel Roofing Metal Roofing Supply

Built for Total Weather Protection 

When it comes to ultimate durability, mechanical seam panels set the standard. These field-seamed systems deliver unmatched water and wind protection. 

1.5” Mechanical Seam 

Offers flexibility for complex roof designs, hips, and valleys. Works perfectly on moderate slopes (≥2:12) and residential or light commercial roofs, providing exceptional wind uplift resistance. 

 

2” Mechanical Seam 

The double-lock version ensures maximum weatherproofing and superior wind performance, perfect for low-slope roofs and hurricane-prone regions. It’s the go-to option for architectural and structural applications. 

 Pro Tip: 

Use 1.5” for design flexibility and residential use; choose 2” for full structural and coastal resilience. 

🔘 Request ALSTEEL Mechanical Seam panels — roll-formed to spec and engineered for long-term performance. 

 

Alsteel Roofing Metal Roofing Supply

We are a family company with more than 25 years of international experience. We are dedicated to assisting your installers in transforming residential and commercial metal roofs, offering you a great price for quality products, plus excellent customer service.

We are proud to be serving Southwest Florida, an area that has experienced rapid growth for decades, meaning many roofing techniques have changed and materials have improved. Our steel roofing solutions are durable, sustainable, cost-effective, and on top of it all, beautiful!

Customization is a focus of ours. At AlSteel you can get metal panels tailored to your needs, guaranteeing efficiency. We can’t wait to work with you.

https://www.alsteelroofing.com
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1.5” Snaplock w/ Clips vs. 1.75” Snaplock w/ Clips