MasterLok-90 and MasterLok-FS Trapezoidal Panels

The Benefits of MasterLok-90 and MasterLok-FS Panels

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.  

View an ML-90 installation animation

Click image to enlarge

Great for

Walls

Walls

Roofs

Roofs

Residential

Residential

Commercial

Commercial

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.

Specifications & Details

Details
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
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
Panel Width 24"
Coating Kynar 500® (PVDF)
Substrate - Standard 24 GA Galvalume®
- Optional 22 GA Galvalume

Related Files

Specifications

CAD Drawings

PDF Drawings

Product & Trim Information Books

Information Flyers

Good Design Practices

Technical Bulletins / ASTM E283 (Air) & ASTM E331 (Water)

Get A Submittal Package

MasterLok-90 - 18"
Customize (Recommended)

Customize your submittal package MasterLok-90 - 18"

Click on your desired documents below to select them for your package.

General Product and Warranty Information

Panel Load Tables w/Section Properties and Testing

Safety Data and Material Safety Data Sheets

MasterLok-90 - 24"
Customize (Recommended)

Customize your submittal package MasterLok-90 - 24"

Click on your desired documents below to select them for your package.

General Product and Warranty Information

Panel Load Tables w/Section Properties and Testing

Safety Data and Material Safety Data Sheets

MasterLok-FS - 18"
Customize (Recommended)

Customize your submittal package MasterLok-FS - 18"

Click on your desired documents below to select them for your package.

General Product and Warranty Information

Panel Load Tables w/Section Properties and Testing

Safety Data and Material Safety Data Sheets

MasterLok-FS - 24"
Customize (Recommended)

Customize your submittal package MasterLok-FS - 24"

Click on your desired documents below to select them for your package.

General Product and Warranty Information

Panel Load Tables w/Section Properties and Testing

Safety Data and Material Safety Data Sheets