Many property owners choose metal roofing systems to avoid deformation, not knowing that such products are susceptible to buckling too. Oil canning makes the flat-sheet surfaces of any metal appear wavy; the wrinkling can become more apparent under certain lighting conditions.
This happens when metal panels, especially those with high width-to-thickness ratios, relieve differential stresses within them. Although oil canning is a natural phenomenon, there are ways to keep your metal roof from buckling out of plane.
As the authority on metal roof installation and single ply roof repair projects, Carney Roofing Company shares the preventive measures you can take:
- Choose Thicker and Narrower Metal Panels
Thickness dictates the susceptibility of metal roofs to the effects of oil canning. Harder panels don’t easily give in to buckling. It’s also common practice to reduce the space between seams to make any wrinkling less visible.
- Break Flat Spaces
Speaking of minimizing space on every panel, using rib rollers can accomplish the same goal. Any new roofing construction specialist would say that these indentations don’t prevent oil canning, but they would create an illusion of smooth surfaces.
- Ensure That Decking Boards Are Flat
Make sure the underlying sheathing is completely level. Slight contours can put a lot of stress on the metal panels, causing them to wrinkle as they try to conform to their uneven foundations.
- Don’t Overdo Fastening
Securing metal panels is a good thing, but going overboard can be just as bad. Over-fastening the materials to the decking might not provide enough room for expansion and contraction with extreme temperature fluctuations. Work with a roofer adept at your chosen metal roofing product to ensure flawless installation.
- Reduce Reflectivity
Matte and low-gloss finishes can hide signs of oil canning in plain sight. Since they don’t reflect as much light as their smooth counterparts, they can help erase any evidence of unsightly buckling.
Turn to Carney Roofing Company to learn more about what makes metal roofs tick or get the most favorable EPDM roofing cost. We specialize in a variety of materials suitable for commercial properties. Call us at (936) 307-0900 to schedule your consultation and get a free estimate in Tyler, TX, or any nearby community.