MLFS panels are mechanically seamed. Mechanical seamers and hand crimpers are available for rent through Developmental Industries (DI) at mcelroyseamers.com, a website created just for McElroy customers.
MasterLok-90 (also referred to as ML-90) is a snap together trapezoidal standing seam system designed for projects with slopes as low as 1/4:12.
MasterLok-FS (also referred to as ML-FS) is a mechanically seamed trapezoidal standing seam system also designed for projects with slopes as low as 1/4:12. For seaming tool rental click here.
Both panels are best suited for simple sloped roofs without dormers, hips, valleys or other special conditions. ML-90 and ML-FS can be installed over solid decking or substructural members.
MLFS panels are mechanically seamed. Mechanical seamers and hand crimpers are available for rent through Developmental Industries (DI) at mcelroyseamers.com, a website created just for McElroy customers.
Details | |
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Sealant | Factory applied to improve weather-tightness |
Minimum slope | ML-90 1/4:12; ML-FS 1/4:12 |
Installation | Can be over solid deck or open framing |
MasterLok-FS | Mechanically seamed system |
MasterLok-90 | Snap Together System |
Note | MoistureLok available on MasterLok-90 |
Note | Oil Canning is a natural occurrence in metal panels and is not a cause for panel rejection |
Testing | |
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Fire Rating | Class A |
Uplift Test | UL580 Class 90, ASTM E1592 |
Air Infiltration | ASTM E1680 |
Water Infiltration | ASTM E1646 |
Class 4 Impact Resistance | UL2218 |
MasterLok-90 Florida State Approval | 1832.2, 1747.1 |
MasterLok-FS Florida State Approval | 8051.1 |
Testing Data | For available Test Data, Section Properties or Load Tables, please visit our downloads section. |
Panel Options | |
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Panel Width | 24" |
Coating | Kynar 500® (PVDF) |
Substrate | - Standard 24 GA Galvalume® - Optional 22 GA Galvalume |