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      Why M‑Weld Drain Insert?

      Conventional field-built penetration flashings are among the most notorious leak sites on the roof. But M-Weld™ Pre-Flashed Accessories offer consistent, factory-built quality every time, reducing the possibility of leaks and callbacks. M-Weld™ Accessories work with torch, hot bitumen, or cold adhesive applied systems.  Choosing uniform, pre-flashed accessories over field-built solutions results in a neater finished appearance and can lower installation costs by up to 6%! Available in a wide variety of standard styles and sizes, plus custom-fabricated styles to meet specific job requirements.

      Standard M-Drain™ is a spun-aluminum or copper roof drain with gravel guard, strainer caps, and waterproofing plumbing seal attached. M-Drain™ is pre-flashed with either APP or SBS smooth-surface modified bitumen membranes, and is available in full and insert sizes to accommodate new construction and retrofit applications. Unflashed M-Drain™ is also available. The Drain Insert is a spun-aluminum or copper roof drain with gravel guard, strainer caps, and waterproofing plumbing seal.

      Benefits

      Benefits of M-Weld Drain Insert include:
      • Versatile:  Wide range of sizes allows for proper fit into any size roofing drain
      • Easy Installation:  Installation is quick and easy because no clamping ring is required for retrofit drains.
      • Convenient:  All hardware, including strainer and gravel guard, come complete with M-Drain™  

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