What to know about metal roofing systems
What is a metal roof?
Metal roofing system comprises metal shingles or overlapping metal panels mounted to a substrate. There are two major types of substrates adopted with metal roofing (solid substrates and open framing). Metal roofing is among the best commercial roof options available nowadays for good reason. After a proper installation, a metal roofing system can offer at least six decades of performance. According to studies by the Insurance Institute for Business and Home Safety, where every roof sustains some cosmetic hail damage, the metal roof showed the best performance and lowest chance of receiving structural damage, even with the biggest hailstones.
There are several most common styles of today’s commercial metal roofs, including R-panel, batten panel, and particularly standing seam metal roof.
Standing seam roofing
What are standing seam metal roofs (SSMRs)?
A standing seam metal roof refers to a range of concealed fastener metal panels featuring trapezoidal or vertical legs with flat space in between. Flanges or concealed clips help attach the panel seams to the substrate. A few metal roof systems (mechanically standing seam panels) create a double-lock standing seam using a seamer machine. Meanwhile, others leverage a seam cap.
Some of the unique design characteristics
- The interlocking seam stands above the panel’s flat surface to avoid water entry.
- Concealed fasteners enable a cleaner look.
- The screws do not penetrate the roof panels.
Why it is a popular roofing option
- Long lifespan
- Long warranties
- A modern architectural look offered
- Customization of roof panels for special roof shapes
- Energy saving and long-term cost savings
- Securely fastened to an open frame or solid substrate