Products / MTL Panel

The MTL (Mueller Trapezoidal Lock) Panel is a mechanically field-seamed, trapezoidal-leg standing seam steel roof panel attached with concealed clips over open framing. It has 24 in coverage, a 3 in rib height and a 1/4:12 minimum slope, and is made in 24 gauge with striations in Galvalume Plus or Signature 200 coatings; Mueller names commercial buildings with lower-pitched roofs as its use. Mueller lists a 40-year limited Galvalume warranty, and Signature 200 paint carries 45-year film integrity and 30-year chalk and fade terms (Polar White excepted).