How to Prevent Oil Canning in Your Metal Roofing

oil canningSome metal roof panels may bulge or produce a ripple or wavy-like appearance. The bulge doesn’t compromise the integrity of the material, but it has a very unsightly appearance. All metal panels, including aluminum, zinc, and copper panels are vulnerable to this. This is known as oil canning, and it creates a very unflattering look. Can this be prevented?

What Causes Oil Canning?

Oil canning occurs due to inconsistencies during the manufacturing process. In production facilities, machines use rollers to flatten metal roofing panels into sheets. The rollers may have gaps, resulting in uneven distribution of pressure when the panels are pressed.

Aside from improper manufacturing, oil canning may also be caused by other factors, such as thermal expansion, improper storage, incorrect installation, or shifting of the beams and other support structures.

Can Anthing Prevent Oil Canning?

Oil canning prevention is up to the manufacturer and installer. There is really nothing the homeowner can do. This is why it’s important to hire a reputable roofing contractor that, in turn, does not hire cheap third-party sub-contractors. You should also verify that the contractor acquires his material from reputable manufacturers.

An oil canned panel usually needs to be replaced. There really is no way to repair the panel. In some instances, however, the panel can be corrected. Adjusting the internal supports to place additional tension on the outward side of the panel may solve the problem. A contractor can examine the roof and make a determination regarding repairs or replacement. More often, the latter is in order.

Prevent Oil Canning by Hiring Allied Construction

Give Allied Construction a call if you need a roof replacement. We obtain all of our materials, including roofing sheets, shingles, deck panels, and fence posts from longstanding and trusted distributors. We also do installations the right way. This prevents oil canning from ever becoming an issue in the first place.

Edited by Justin Vorhees

Metal Roof Panels Acquired and Installed the Right Way

Quality roofing, decking and fencing services since 1982 in Bellevue, Bothell,
Kenmore, Kirkland, Lynnwood, Sammamish, Snohomish & Woodinville