MR-24 Monolithic Roof System

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The MR-24┬« roof system is specifically designed to accommodate roof movement. The system is attached to the building’s structure with a special clip and tab assembly formed into the double-lock seam. Because the tab can move within the clip, the entire roof can expand and contract freely without sacrificing structural integrity. Butler’s exclusive Pittsburgh double-lock standing seam assures you of consistent weathertight performance.

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Roof panels are permanently seamed together with a 180 degree field formed seam completing a full 360 degree “Pittsburgh” double-lock seam to keep moisture out and assure structural integrity.

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Roof clips securely attach the roof panels to the supporting structurals by stainless
steel tabs which are roll formed into the panel seam.

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Every part of the exclusive MR-24 roof system uses only the highest quality materials to assure a weather-tight standing seam roof that acts like a single, monolithic steel membrane.

Independent surveys show that the MR-24 roof system is the most specified standing seam roof on the market, with over 1 billion square feet installed since its introduction in 1969.