A matte or satin finish diffuses light and minimizes the visual impact, while a glossy clear coat can act like a mirror, making every ripple more pronounced. Careful attention to detail at edges, corners, and transitions prevents stress concentrations that could initiate visible waviness.
Metal Roof Oil Canning Repair Guide: Key Solutions
Properly designed expansion joints and flexible attachment systems allow the roof system to move as a unit, reducing the likelihood of exaggerated waviness. If loose fasteners are discovered, they should be addressed promptly to maintain the integrity of the system.
Contractors should handle panels by the edges or underside, avoiding direct pressure on the flat areas. Oil canning describes the visible waviness that can appear across flat or near-flat sheets of metal roofing, resembling the rippled surface of an old-fashioned oil can.
Metal Roof Oil Canning Repair Guide
Using appropriate fastener spacing and backing bars in standing seam systems ensures that the panel is securely held without over-compression. As the building structure shifts slightly due to settling or thermal expansion, the relatively thin metal panels may experience additional flexing beyond their elastic limit.
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