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Product Approval Menu > Application Detail

FL #

FL42382-R2

Application Type

Revision

Code Version

2026

Application Status

Applied For

Comments

Archived

Product Manufacturer

Cornerstone Building Brands (Fortify, ABC, Ceco, MBCI, Metal Sales, Metallic, Mueller, Robertson, Star, Union)

Address/Phone/Email

5020 Weston Parkway
Cary, NC
(480) 529-5987
blake.rogers1@cornerstone-bb.com

Authorized Signature

Blake Rogers
blake.rogers1@cornerstone-bb.com

Technical Representative

Address/Phone/Email

Quality Assurance Representative

Address/Phone/Email

Category

Structural Components

Subcategory

Roof Deck

Compliance Method

Evaluation Report from a Florida Registered Architect or a Licensed Florida Professional Engineer
Evaluation Report - Hardcopy Received

Florida Engineer or Architect Name who developed the Evaluation Report

David Eng

Florida License

PE-81377

Quality Assurance Entity

UL LLC

Quality Assurance Contract Expiration Date

11/13/2026

Validated By

James R Wally, PE

Validation Checklist - Hardcopy Received

Certificate of Independence

FL42382_R2_COI_24ga DoubleLok on 16ga Purlins.pdf

Referenced Standard and Year (of Standard)

Standard	Year
ASTM E1592	2017

Equivalence of Product Standards
Certified By

Sections from the Code

Product Approval Method

Method 1 Option D

Date Submitted

10/03/2026

Date Validated

Summary of Products


FL #	Model, Number or Name	Description
42382.1	01: Steel DoubleLok on purlins	24ga (min) DoubleLok on 16ga (min) purlins
Limits of Use Approved for use in HVHZ: No Approved for use outside HVHZ: Yes Impact Resistant: N/A Design Pressure: +N/A/-220 Other: See evaluation report for details. \| Approval may be used by any of the Cornerstone Building Brands entities, e.g. Fortify Building Solutions, American Building Components, Ceco Building Systems, MBCI, Metal Sales, Metallic Building Systems, Mueller, Robertson Building Systems, Star Building Systems, Union Corrugating, et al.		Installation Instructions FL42382_R2_II_24ga DoubleLok on 16ga Purlins.pdf Verified By: David Eng, PE 81377 Created by Independent Third Party: Yes Evaluation Reports FL42382_R2_AE_24ga DoubleLok on 16ga Purlins.pdf Created by Independent Third Party: Yes

42382.2	02: Steel Mech Seam purlins	26ga or 24ga (min) Mech Seam on 16ga (min) purlins
Limits of Use Approved for use in HVHZ: No Approved for use outside HVHZ: Yes Impact Resistant: N/A Design Pressure: +N/A/-135.3 Other: See evaluation report for details. \| Approval may be used by any of the Cornerstone Building Brands entities, e.g. Fortify Building Solutions, American Building Components, Ceco Building Systems, MBCI, Metal Sales, Metallic Building Systems, Mueller, Robertson Building Systems, Star Building Systems, Union Corrugating, et al.		Installation Instructions FL42382_R2_II_24ga Mech Seam on 16ga Purlins.pdf Verified By: David Eng, PE 81377 Created by Independent Third Party: Yes Evaluation Reports FL42382_R2_AE_24ga Mech Seam on 16ga Purlins.pdf Created by Independent Third Party: Yes

42382.3	03: Steel DoubleLok on purlins	24ga (min) DoubleLok on 16ga (min) purlins
Limits of Use Approved for use in HVHZ: No Approved for use outside HVHZ: Yes Impact Resistant: N/A Design Pressure: +N/A/-83.25 Other: See evaluation report for details. \| Approval may be used by any of the Cornerstone Building Brands entities, e.g. Fortify Building Solutions, American Building Components, Ceco Building Systems, MBCI, Metal Sales, Metallic Building Systems, Mueller, Robertson Building Systems, Star Building Systems, Union Corrugating, et al.		Installation Instructions FL42382_R2_II_24ga DBL-Lok on 16ga Purlins.pdf Verified By: David Eng, PE 81377 Created by Independent Third Party: Yes Evaluation Reports FL42382_R2_AE_24ga DBL-Lok on 16ga Purlins.pdf Created by Independent Third Party: Yes

42382.4	04: Steel SuperLok on purlins	24ga or 22ga (min) SuperLok on 16ga (min) purlins
Limits of Use Approved for use in HVHZ: No Approved for use outside HVHZ: Yes Impact Resistant: N/A Design Pressure: +N/A/-130 Other: See evaluation report for details. \| Approval may be used by any of the Cornerstone Building Brands entities, e.g. Fortify Building Solutions, American Building Components, Ceco Building Systems, MBCI, Metal Sales, Metallic Building Systems, Mueller, Robertson Building Systems, Star Building Systems, Union Corrugating, et al.		Installation Instructions FL42382_R2_II_22-24ga SuperLok on 16ga Purlins.pdf Verified By: David Eng, PE 81377 Created by Independent Third Party: Yes Evaluation Reports FL42382_R2_AE_22-24ga SuperLok on 16ga Purlins.pdf Created by Independent Third Party: Yes

42382.5	05: Steel Secure Seam on purlins	26ga (min) Secure Seam on 16ga (min) purlins
Limits of Use Approved for use in HVHZ: No Approved for use outside HVHZ: Yes Impact Resistant: N/A Design Pressure: +N/A/-88.4 Other: See evaluation report for details. \| Approval may be used by any of the Cornerstone Building Brands entities, e.g. Fortify Building Solutions, American Building Components, Ceco Building Systems, MBCI, Metal Sales, Metallic Building Systems, Mueller, Robertson Building Systems, Star Building Systems, Union Corrugating, et al.		Installation Instructions FL42382_R2_II_26ga SecureSeam on 16ga Purlins.pdf Verified By: David Eng, PE 81377 Created by Independent Third Party: Yes Evaluation Reports FL42382_R2_AE_26ga SecureSeam on 16ga Purlins.pdf Created by Independent Third Party: Yes

42382.6	06: Steel LokSeam on purlins	24ga (min) LokSeam on 16ga (min) purlins
Limits of Use Approved for use in HVHZ: No Approved for use outside HVHZ: Yes Impact Resistant: N/A Design Pressure: +N/A/-40 Other: See evaluation report for details. \| Approval may be used by any of the Cornerstone Building Brands entities, e.g. Fortify Building Solutions, American Building Components, Ceco Building Systems, MBCI, Metal Sales, Metallic Building Systems, Mueller, Robertson Building Systems, Star Building Systems, Union Corrugating, et al.		Installation Instructions FL42382_R2_II_24ga LokSeam on 16ga Purlins.pdf Verified By: David Eng, PE 81377 Created by Independent Third Party: Yes Evaluation Reports FL42382_R2_AE_24ga LokSeam on 16ga Purlins.pdf Created by Independent Third Party: Yes

42382.7	07: Steel Rib panel on purlins	29ga or 26ga (min) Rib panel on 18ga or 16ga (min) purlins
Limits of Use Approved for use in HVHZ: No Approved for use outside HVHZ: Yes Impact Resistant: N/A Design Pressure: +N/A/-47.2 Other: See evaluation report for details. \| Approval may be used by any of the Cornerstone Building Brands entities, e.g. Fortify Building Solutions, American Building Components, Ceco Building Systems, MBCI, Metal Sales, Metallic Building Systems, Mueller, Robertson Building Systems, Star Building Systems, Union Corrugating, et al.		Installation Instructions FL42382_R2_II_26-29ga RIB on 16-18ga Purlins.pdf Verified By: David Eng, PE 81377 Created by Independent Third Party: Yes Evaluation Reports FL42382_R2_AE_26-29ga RIB on 16-18ga Purlins.pdf Created by Independent Third Party: Yes

42382.8	08: Steel Rib panel on wood purlins	29ga (min) Rib panel on 1x4 (min) wood purlins
Limits of Use Approved for use in HVHZ: No Approved for use outside HVHZ: Yes Impact Resistant: N/A Design Pressure: +N/A/-138.9 Other: See evaluation report for details. \| Approval may be used by any of the Cornerstone Building Brands entities, e.g. Fortify Building Solutions, American Building Components, Ceco Building Systems, MBCI, Metal Sales, Metallic Building Systems, Mueller, Robertson Building Systems, Star Building Systems, Union Corrugating, et al.		Installation Instructions FL42382_R2_II_29ga RIB on 1x4 Purlins.pdf Verified By: David Eng, PE 81377 Created by Independent Third Party: Yes Evaluation Reports FL42382_R2_AE_29ga RIB on 1x4 Purlins.pdf Created by Independent Third Party: Yes

42382.9	09: Steel 5V on wood purlins	29ga (min) 5V panel on 1x4 (min) wood purlins
Limits of Use Approved for use in HVHZ: No Approved for use outside HVHZ: Yes Impact Resistant: N/A Design Pressure: +N/A/-70.25 Other: See evaluation report for details. \| Approval may be used by any of the Cornerstone Building Brands entities, e.g. Fortify Building Solutions, American Building Components, Ceco Building Systems, MBCI, Metal Sales, Metallic Building Systems, Mueller, Robertson Building Systems, Star Building Systems, Union Corrugating, et al.		Installation Instructions FL42382_R2_II_29ga 5V on 1x4 Purlins.pdf Verified By: David Eng, PE 81377 Created by Independent Third Party: Yes Evaluation Reports FL42382_R2_AE_29ga 5V on 1x4 Purlins.pdf Created by Independent Third Party: Yes

42382.10	10: Steel Corrugated on purlins	26ga or 24ga (min) corrugated panel with nominal 7/8" rib height on 16ga (min) purlins
Limits of Use Approved for use in HVHZ: No Approved for use outside HVHZ: Yes Impact Resistant: N/A Design Pressure: +N/A/-140 Other: See evaluation report for details. \| Approval may be used by any of the Cornerstone Building Brands entities, e.g. Fortify Building Solutions, American Building Components, Ceco Building Systems, MBCI, Metal Sales, Metallic Building Systems, Mueller, Robertson Building Systems, Star Building Systems, Union Corrugating, et al.		Installation Instructions FL42382_R2_II_24-26ga COR on 16ga Purlins.pdf Verified By: David Eng, PE 81377 Created by Independent Third Party: Yes Evaluation Reports FL42382_R2_AE_24-26ga COR on 16ga Purlins.pdf Created by Independent Third Party: Yes

42382.11	11: Steel 7.2 Panel on purlins	26ga (min) 7.2 Panel on 16ga (min) purlins
Limits of Use Approved for use in HVHZ: No Approved for use outside HVHZ: Yes Impact Resistant: N/A Design Pressure: +N/A/-52.5 Other: See evaluation report for details. \| Approval may be used by any of the Cornerstone Building Brands entities, e.g. Fortify Building Solutions, American Building Components, Ceco Building Systems, MBCI, Metal Sales, Metallic Building Systems, Mueller, Robertson Building Systems, Star Building Systems, Union Corrugating, et al.		Installation Instructions FL42382_R2_II_26ga 7-2 Panel on 16ga Purlins.pdf Verified By: David Eng, PE 81377 Created by Independent Third Party: Yes Evaluation Reports FL42382_R2_AE_26ga 7-2 Panel on 16ga Purlins.pdf Created by Independent Third Party: Yes

42382.12	12: Steel PBR on purlins	22ga-29ga PBR on 16ga (min) purlins
Limits of Use Approved for use in HVHZ: No Approved for use outside HVHZ: Yes Impact Resistant: N/A Design Pressure: +96/-163 Other: See evaluation report for details. \| Approval may be used by any of the Cornerstone Building Brands entities, e.g. Fortify Building Solutions, American Building Components, Ceco Building Systems, MBCI, Metal Sales, Metallic Building Systems, Mueller, Robertson Building Systems, Star Building Systems, Union Corrugating, et al.		Installation Instructions FL42382_R2_II_22-29ga PBR on 16ga Purlins.pdf Verified By: David Eng, PE 81377 Created by Independent Third Party: Yes Evaluation Reports FL42382_R2_AE_22-29ga PBR on 16ga Purlins.pdf Created by Independent Third Party: Yes

42382.13	13: Steel PBU/M-Panel on purlins	26ga (min) PBR/M-Panel on 16ga (min) purlins
Limits of Use Approved for use in HVHZ: No Approved for use outside HVHZ: Yes Impact Resistant: N/A Design Pressure: +N/A/-52.5 Other: See evaluation report for details. \| Approval may be used by any of the Cornerstone Building Brands entities, e.g. Fortify Building Solutions, American Building Components, Ceco Building Systems, MBCI, Metal Sales, Metallic Building Systems, Mueller, Robertson Building Systems, Star Building Systems, Union Corrugating, et al.		Installation Instructions FL42382_R2_II_26ga PBU M Panel on 16ga Purlins.pdf Verified By: David Eng, PE 81377 Created by Independent Third Party: Yes Evaluation Reports FL42382_R2_AE_26ga PBU M Panel on 16ga Purlins.pdf Created by Independent Third Party: Yes

42382.14	14: Steel UltraDek on purlins	24ga (min) UltraDek on 16ga (min) purlins
Limits of Use Approved for use in HVHZ: No Approved for use outside HVHZ: Yes Impact Resistant: N/A Design Pressure: +N/A/-50 Other: See evaluation report for details. \| Approval may be used by any of the Cornerstone Building Brands entities, e.g. Fortify Building Solutions, American Building Components, Ceco Building Systems, MBCI, Metal Sales, Metallic Building Systems, Mueller, Robertson Building Systems, Star Building Systems, Union Corrugating, et al.		Installation Instructions FL42382_R2_II_24ga UltraDek 16ga Purlins.pdf Verified By: David Eng, PE 81377 Created by Independent Third Party: Yes Evaluation Reports FL42382_R2_AE_24ga UltraDek 16ga Purlins.pdf Created by Independent Third Party: Yes

42382.15	15: Steel TS 324 on purlins	24ga or 22ga (min) TS 324 on 16ga (min) purlins
Limits of Use Approved for use in HVHZ: No Approved for use outside HVHZ: Yes Impact Resistant: N/A Design Pressure: +N/A/-183.3 Other: See evaluation report for details. \| Approval may be used by any of the Cornerstone Building Brands entities, e.g. Fortify Building Solutions, American Building Components, Ceco Building Systems, MBCI, Metal Sales, Metallic Building Systems, Mueller, Robertson Building Systems, Star Building Systems, Union Corrugating, et al.		Installation Instructions FL42382_R2_II_22-24ga TS 324 on 16ga Purlins.pdf Verified By: David Eng, PE 81377 Created by Independent Third Party: Yes Evaluation Reports FL42382_R2_AE_22-24ga TS 324 on 16ga Purlins.pdf Created by Independent Third Party: Yes

42382.16	16: Steel BattenLok HS on purlins	24ga (min) BattenLok HS on 16ga (min) purlins
Limits of Use Approved for use in HVHZ: No Approved for use outside HVHZ: Yes Impact Resistant: N/A Design Pressure: +N/A/-71.2 Other: See evaluation report for details. \| Approval may be used by any of the Cornerstone Building Brands entities, e.g. Fortify Building Solutions, American Building Components, Ceco Building Systems, MBCI, Metal Sales, Metallic Building Systems, Mueller, Robertson Building Systems, Star Building Systems, Union Corrugating, et al.		Installation Instructions FL42382_R2_II_24ga BattenLok HS on 16ga Purlins.pdf Verified By: David Eng, PE 81377 Created by Independent Third Party: Yes Evaluation Reports FL42382_R2_AE_24ga BattenLok HS on 16ga Purlins.pdf Created by Independent Third Party: Yes

42382.17	17: Steel Retro-R on purlins	26ga (min) Retro-R on 16ga (min) purlins
Limits of Use Approved for use in HVHZ: No Approved for use outside HVHZ: Yes Impact Resistant: N/A Design Pressure: +N/A/-130.5 Other: See evaluation report for details. \| Approval may be used by any of the Cornerstone Building Brands entities, e.g. Fortify Building Solutions, American Building Components, Ceco Building Systems, MBCI, Metal Sales, Metallic Building Systems, Mueller, Robertson Building Systems, Star Building Systems, Union Corrugating, et al.		Installation Instructions FL42382_R2_II_26ga RetroR 16ga Purlins.pdf Verified By: David Eng, PE 81377 Created by Independent Third Party: Yes Evaluation Reports FL42382_R2_AE_26ga RetroR 16ga Purlins.pdf Created by Independent Third Party: Yes

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