Products / MSL Panel

The MSL (Mueller Snap Lock) Panel is a snap-together standing seam steel roof panel attached with concealed clips, installed over open framing or a solid substructure. It has 15-1/4 in coverage, a 1-3/4 in rib height and a 3:12 minimum slope, and is made in 24 gauge with striations in Galvalume Plus, Signature 200, Signature 300 and Signature 300 Metallic coatings. 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); Signature 300 carries 45-year film integrity and 35-year chalk and fade terms, with Copper Metallic and Silver Metallic excepted.