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Product Approval Menu > Application Detail

FL #

FL1747-R19

Application Type

Editorial Change

Code Version

2023

Application Status

Approved

*Approved by DBPR. Approvals by DBPR shall be reviewed and ratified by the POC and/or the Commission if necessary.

Comments

Archived

Product Manufacturer

McElroy Metal, Inc.

Address/Phone/Email

1500 Hamilton Rd.
Bossier City, LA 71111
(318) 752-5045
tjohnson@mcelroymetal.com

Authorized Signature

Tommy Johnson
tjohnson@mcelroymetal.com

Technical Representative

Stephen Knight

Address/Phone/Email

1500 Hamilton Road
Bossier City, LA 71111
(318) 747-8032
sknight@mcelroymetal.com

Quality Assurance Representative

Teresa Taylor

Address/Phone/Email

325 McGhee Road
Winchester, VA 22693
(540) 667-2500 Ext 250
ttaylor@mcelroymetal.com

Category

Structural Components

Subcategory

Roof Deck

Compliance Method

Certification Mark or Listing

Certification Agency

UL LLC

Validated By

James L. Buckner, P.E. @ CBUCK Engineering

Validation Checklist - Hardcopy Received

Referenced Standard and Year (of Standard)

Standard	Year
UL 580	2006

Equivalence of Product Standards
Certified By

Approved Certification Agency
FL1747_R19_Equiv_4792128907 FL QA Extension Letter.pdf

Product Approval Method

Method 1 Option A

Date Submitted

03/20/2026

Date Validated

04/09/2026

Date Pending FBC Approval

Date Approved

04/10/2026

Summary of Products


FL #	Model, Number or Name	Description
1747.1	MasterLok 90 (ML90)	Trapezoidal Standing seam metal roofing
Limits of Use Approved for use in HVHZ: No Approved for use outside HVHZ: Yes Impact Resistant: No Design Pressure: +0/-52.5 Other: Class 90 Construction No. 205 Not to be used in HVHZ The use as a diaphragm is outside the scope of this approval.		Certification Agency Certificate FL1747_R19_C_CAC_Construction No 205_MasterLok 90.pdf Quality Assurance Contract Expiration Date 05/06/2031 Installation Instructions FL1747_R19_II_Construction No 205_MasterLok 90.pdf Verified By: UL LLC Created by Independent Third Party: Evaluation Reports Created by Independent Third Party:

1747.2	Max Rib	36" Coverage through fastened metal roofing
Limits of Use Approved for use in HVHZ: No Approved for use outside HVHZ: Yes Impact Resistant: No Design Pressure: +0/-52.5 Other: Class 90 Construction No. 560 Not ot be used in HVHZ The use as a diaphragm is outside the scope of this approval.		Certification Agency Certificate FL1747_R19_C_CAC_Construction No 560_Max Rib.pdf Quality Assurance Contract Expiration Date 05/06/2031 Installation Instructions FL1747_R19_II_Construction No 560_Max Rib.pdf Verified By: UL LLC Created by Independent Third Party: Evaluation Reports Created by Independent Third Party:

1747.3	Maxima	Vertical leg mechanically seamed standing seam metal roofing
Limits of Use Approved for use in HVHZ: No Approved for use outside HVHZ: Yes Impact Resistant: No Design Pressure: +0/-52.5 Other: Class 90 Construction No. 506, 507 not to be used in HVHZ The use as a diaphragm is outside the scope of this approval.		Certification Agency Certificate FL1747_R19_C_CAC_Construction No 506_Maxima_Maxima ADV.pdf FL1747_R19_C_CAC_Construction No 506F_Maxima .032 Aluminum.pdf FL1747_R19_C_CAC_Construction No 507_Maxima 3 in.pdf Quality Assurance Contract Expiration Date 05/06/2031 Installation Instructions FL1747_R19_II_Construction No 506_Maxima_Maxima ADV.pdf FL1747_R19_II_Construction No 507_Maxima 3 in.pdf Verified By: UL LLC Created by Independent Third Party: Evaluation Reports Created by Independent Third Party:

1747.4	Maxima ADV	Vertical Leg Mechanically Seamed Standing seam metal roofing
Limits of Use Approved for use in HVHZ: No Approved for use outside HVHZ: Yes Impact Resistant: No Design Pressure: +0/-52.5 Other: Class 90 Construction No. 506 Not to be used in HVHZ The use as a diaphragm is outside the scope of this approval.		Certification Agency Certificate FL1747_R19_C_CAC_Construction No 506_Maxima_Maxima ADV.pdf Quality Assurance Contract Expiration Date 05/06/2031 Installation Instructions FL1747_R19_II_Construction No 506_Maxima_Maxima ADV.pdf Verified By: UL LLC Created by Independent Third Party: Evaluation Reports Created by Independent Third Party:

1747.5	Medallion Lok	Vertical Leg snap together satndign seam metal roofing
Limits of Use Approved for use in HVHZ: No Approved for use outside HVHZ: Yes Impact Resistant: No Design Pressure: +0/-52.5 Other: Class 90 Constrcution No. 255, 343, 468 Not to be used in HVHZ The use as a diaphragm is outside the scope of this approval.		Certification Agency Certificate FL1747_R19_C_CAC_Construction No 255_MedallionLok.pdf FL1747_R19_C_CAC_Construction No 343_Medallion Lok.pdf FL1747_R19_C_CAC_Construction No 468_Medallion Lok.pdf Quality Assurance Contract Expiration Date 05/06/2031 Installation Instructions FL1747_R19_II_Construction No 255_MedallionLok.pdf FL1747_R19_II_Construction No 343_Medallion Lok.pdf FL1747_R19_II_Construction No 468_Medallion Lok.pdf Verified By: UL LLC Created by Independent Third Party: Evaluation Reports Created by Independent Third Party:

1747.6	Mega Rib	36" coverage through fastened metal roofing
Limits of Use Approved for use in HVHZ: No Approved for use outside HVHZ: Yes Impact Resistant: No Design Pressure: +0/-52.5 Other: Class 90 Construction No. 244 Not to be used in HVHZ The use as a diaphragm is outside the scope of this approval.		Certification Agency Certificate FL1747_R19_C_CAC_Construction No 244_Mega Rib.pdf Quality Assurance Contract Expiration Date 05/06/2031 Installation Instructions FL1747_R19_II_Construction No 244_Mega Rib.pdf Verified By: UL LLC Created by Independent Third Party: Evaluation Reports Created by Independent Third Party:

1747.7	Mirage	Snap together concealed fastener metal roofing
Limits of Use Approved for use in HVHZ: No Approved for use outside HVHZ: Yes Impact Resistant: No Design Pressure: +0/-52.5 Other: Class 90 Construction No. 170 Not to be used in HVHZ The use as a diaphragm is outside the scope of this approval.		Certification Agency Certificate FL1747_R19_C_CAC_Construction No 170_Mirage.pdf Quality Assurance Contract Expiration Date 05/06/2031 Installation Instructions FL1747_R19_II_Construction No 170_Mirage.pdf Verified By: UL LLC Created by Independent Third Party: Evaluation Reports Created by Independent Third Party:

1747.8	MultiRib	36" coverage through fastened metal roofing
Limits of Use Approved for use in HVHZ: No Approved for use outside HVHZ: Yes Impact Resistant: No Design Pressure: +0/-52.5 Other: Class 90 Construction No. 166 Not to be used in HVHZ The use as a diaphragm is outside the scope of this approval.		Certification Agency Certificate FL1747_R19_C_CAC_Construction No 166_Multirib.pdf Quality Assurance Contract Expiration Date 05/06/2031 Installation Instructions FL1747_R19_II_Construction No 166_Multirib.pdf Verified By: UL LLC Created by Independent Third Party: Evaluation Reports Created by Independent Third Party:

1747.9	R-Panel	36" coverage through fastened metal roofing
Limits of Use Approved for use in HVHZ: No Approved for use outside HVHZ: Yes Impact Resistant: No Design Pressure: +0/-52.5 Other: Class 90 Construction No. 161, 167 Not to be used in HVHZ The use as a diaphragm is outside the scope of this approval.		Certification Agency Certificate FL1747_R19_C_CAC_Construction No 161_R Panel.pdf FL1747_R19_C_CAC_Construction No 167_R Panel.pdf Quality Assurance Contract Expiration Date 05/06/2031 Installation Instructions FL1747_R19_II_Construction No 161_R Panel.pdf FL1747_R19_II_Construction No 167_R Panel.pdf Verified By: UL LLC Created by Independent Third Party: Evaluation Reports Created by Independent Third Party:

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