Mueller Lock Panels should not be installed on a roof that is less than a 1/2:12 pitch. When this panel is installed on pitches less than 1/2:12, heavy rainfall may lead to water accumulation and possible leaks.
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The Mueller Lock panel is one of the most versatile standing seam roof panels made. Whether using MLK on a commercial steel building or on a residential metal roof application, its structural performance is unsurpassed.
Note: MLK Panel can exhibit oil canning, which is a waviness in the flat area of roofing panels. This is an aesthetic issue and not a reason for rejection. For more information about oil canning, click here.
* Colors may vary by monitor settings. Please contact us to get the most accurate color representation. We will be glad to provide you with color samples.
** Galvalume Plus has no uniformity of appearance guarantee. Each individual sheet, even upon delivery, may have a different color, gloss, sheen, texture or spangled appearance. If uniformity of appearance is desired, a painted product is required.
Click here for information about our paint warranties.