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FL # FL17840-R5
Application Type Revision
Code Version 2026
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 National Gypsum Company a dba of National Gypsum Services Company
Address/Phone/Email 2001 Rexford Road
Charlotte, NC 28211
(704) 458-2012
mnblades@nationalgypsum.com
 
Authorized Signature Michael Blades
mnblades@nationalgypsum.com
 
Technical Representative
Address/Phone/Email
 
Quality Assurance Representative
Address/Phone/Email
 
Category Roofing
Subcategory Roofing Insulation
 
Compliance Method Certification Mark or Listing
 
Certification Agency Miami-Dade BCCO - CER
Validated By Zachary R. Priest, P.E.
  Validation Checklist - Hardcopy Received
 
 
Referenced Standard and Year (of Standard)
StandardYear
ASTM C 11772024
ASTM C 13252021
 
Equivalence of Product Standards
Certified By
 
 
 
 
Product Approval Method Method 1 Option A
 
Date Submitted 07/28/2026
Date Validated 07/28/2026
Date Pending FBC Approval
Date Approved 07/29/2026
 
Summary of Products
FL # Model, Number or Name Description
17840.1 DEXcell Cement Roof Board cementitious roof board with fiberglass mesh
Limits of Use
 Approved for use in HVHZ: Yes
 Approved for use outside HVHZ: Yes
 Impact Resistant: N/A
 Design Pressure: N/A
 Other: See NOA for limits of use.		 Certification Agency Certificate
 FL17840_R5_C_CAC_25072211.pdf
Quality Assurance Contract Expiration Date
 06/18/2031
Installation Instructions
 FL17840_R5_II_25072211.pdf
 Verified By: Miami-Dade BCCO - CER
 Created by Independent Third Party: 
Evaluation Reports
 Created by Independent Third Party: 
17840.2 DEXcell FA Glass Mat Roof Board Glass mat faced gypsum roof board
Limits of Use
 Approved for use in HVHZ: Yes
 Approved for use outside HVHZ: Yes
 Impact Resistant: N/A
 Design Pressure: N/A
 Other: See NOA for limits of use.		 Certification Agency Certificate
 FL17840_R5_C_CAC_25072211.pdf
Quality Assurance Contract Expiration Date
 06/18/2031
Installation Instructions
 FL17840_R5_II_25072211.pdf
 Verified By: Miami-Dade BCCO - CER
 Created by Independent Third Party: 
Evaluation Reports
 Created by Independent Third Party: 
17840.3 DEXcell Glass Mat Roof Board coated glass mat faced gypsum roof board
Limits of Use
 Approved for use in HVHZ: Yes
 Approved for use outside HVHZ: Yes
 Impact Resistant: N/A
 Design Pressure: N/A
 Other: See NOA for limits of use.		 Certification Agency Certificate
 FL17840_R5_C_CAC_25072211.pdf
Quality Assurance Contract Expiration Date
 06/18/2031
Installation Instructions
 FL17840_R5_II_25072211.pdf
 Verified By: Miami-Dade BCCO - CER
 Created by Independent Third Party: 
Evaluation Reports
 Created by Independent Third Party: 
 
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Contact Us :: 2601 Blair Stone Road, Tallahassee FL 32399 Phone: 850-487-1824
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