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FL #

FL15822-R5

Application Type

Revision

Code Version

2026

Application Status

Pending FBC Approval

Comments

Archived

Product Manufacturer

G.M.C. Roofing & Building Paper Products Inc.

Address/Phone/Email

6400 Zerker Avenue
Shafter, CA 93263
(661) 339-4324
dave.swaroopgap@gmail.com

Authorized Signature

Dave Swaroop
dave.swaroopgap@gmail.com

Technical Representative

Address/Phone/Email

Quality Assurance Representative

Address/Phone/Email

Category

Roofing

Subcategory

Underlayments

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

Zachary R. Priest

Florida License

PE-74021

Quality Assurance Entity

Keystone Certifications, Inc.

Quality Assurance Contract Expiration Date

12/31/2029

Validated By

Steven M. Urich, PE

Validation Checklist - Hardcopy Received

Certificate of Independence

FL15822_R5_COI_CoI_CREEK Technical Services_2025.pdf

Referenced Standard and Year (of Standard)

Standard	Year
ASTM D 226	2017
ASTM D 4869	2016
ASTM D 6380	2003

Equivalence of Product Standards
Certified By

Sections from the Code

Product Approval Method

Method 1 Option D

Date Submitted

09/03/2026

Date Validated

09/04/2026

Date Pending FBC Approval

09/16/2026

Summary of Products


FL #	Model, Number or Name	Description
15822.1	30 ASTM D 226 Type II	ASTM D 226 Type II asphalt-saturated organic felt underlayment used in steep slope roofing
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 evaluation report for limits of use		Installation Instructions FL15822_R5_II_GMC12001.5 2026 FBC Eval Underlayments final.pdf Verified By: Zachary R. Priest PE-74021 Created by Independent Third Party: Yes Evaluation Reports FL15822_R5_AE_GMC12001.5 2026 FBC Eval Underlayments final.pdf Created by Independent Third Party: Yes

15822.2	30 ASTM D 4869 Type II	ASTM D 4869 Type II asphalt-saturated organic felt underlayment used in steep slope roofing
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 evaluation report for limits of use		Installation Instructions FL15822_R5_II_GMC12001.5 2026 FBC Eval Underlayments final.pdf Verified By: Zachary R. Priest 74021 Created by Independent Third Party: Yes Evaluation Reports FL15822_R5_AE_GMC12001.5 2026 FBC Eval Underlayments final.pdf Created by Independent Third Party: Yes

15822.3	Tile Underlayment	ASTM D 6380 Class M Type II asphalt-saturated organic felt underlayment
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 evaluation report for limits of use.		Installation Instructions FL15822_R5_II_GMC12001.5 2026 FBC Eval Underlayments final.pdf Verified By: Zachary R. Priest PE-74021 Created by Independent Third Party: Yes Evaluation Reports FL15822_R5_AE_GMC12001.5 2026 FBC Eval Underlayments final.pdf Created by Independent Third Party: Yes

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