Flex Securock Glass Mat Roof Board User Manual

Submittal Sheet

Securock® Glass-Mat
Roof Board

High-performance glass-mat roof board for use in low-slope commercial roofing systems
– Ideal for use as cover board in single-ply mechanically attached systems
– Moisture and mold resistant core and facer
– Provides protection to roof system from hail and foot traffic
– Fire resistant for use as fire barrier and thermal barrier
– Unmatched mat-to-core tensile bond strength makes facer less likely to delaminate when cutting.
– High-quality tight mat makes for easier handling and cutting.

Description Securock® Glass-Mat roof board is a high-performance roof board for use in low-slope commercial roofing systems.

It enhances the durability of the entire roofing system when used as cover board in single-ply mechanically attached
systems. Its specially treated core and high-performance glass-mat facer provide protection against fire, mold
and moisture.

Advantages

Limitations –

– Consult roofing manufacturers for specific instructions on the application of their products to

– Weather conditions, dew, application temperature, installation techniques and moisture drive can have adverse

– Keep

– For re-roof or re-cover applications, existing roofing system must be dry throughout prior to application of

– Plastic or poly packaging applied at the plant to protect board during rail or other transit should be removed

–

– For systems not listed, please contact your local USG

Installation

– Use fasteners specified in accordance with above requirements. Install approved fasteners with plates into

– Locate edge joints on, and parallel to, deck ribs. Stagger end joints of adjacent lengths of

– See product data table for maximum flute span when panels are applied directly over metal decking.
– For vertical parapet applications, only 1/2" or 5/8" panels should be used. Maximum framing spacing is 24" o.c.

– Refer to roof system manufacturer's written instructions, local code requirements and Factory Mutual Global (FMG

Fire Performance Meets Factory Mutual (FM) Class 1 and Underwriters Laboratories (UL) Class A fire ratings for

unlimited slope in fire barrier applications per UL 790.

Easier to cut, handle and install High-quality mat produces less itchiness than competitive products.
Moisture and Mold Fiberglass face and back with treated core provides moisture and mold resistance. Scored a

maximum “10” for mold resistance on ASTM D3273.

Securock Glass-Mat roof board is engineered to perform within a properly designed roof system. The use
of

Securock Glass-Mat roof board as a roofing component is the responsibility of the design professional.

Securock

Glass-Mat roof board.

effects on the performance of the roof system and are beyond the control of USG.

Securock Glass-Mat roof board panels dry before, during and after installation. Securock Glass-Mat roof
board should not be installed during rains, heavy fogs and any other conditions that deposit moisture on the
surface of the board. Apply only as much
membrane system in the same day. Avoid exposure to moisture from leaks or condensation.

Securock Glass-Mat roof board.

upon receipt to prevent condensation or trapping of moisture, which may cause application problems.
Securock Glass-Mat roof board should be stored flat and off the ground with protection from the weather.
If stored outdoors, a breathable waterproof covering should be used.

and/or Underwriters Laboratories (UL) requirements for proper installation techniques.

the

Securock Glass-Mat roof board, flush with the surface. Fasteners should be installed in strict compliance
with the roof system manufacturer’s installation recommendations and FMG Loss Prevention Data Sheet 1-29.
Proper fastener spacing is essential to achieve wind-uplift performance.

roof board. Butt board edges and ends loosely in typical installations. Long, uninterrupted runs (greater than
200 feet) of

Securock Glass-Mat roof board may require slight gapping due to thermal expansion.

Securock Glass-Mat roof board that can be covered by final roof

Securock roofing sales representative.

Securock Glass-Mat

Performance – UL Classified as to Surface Burning Characteristics and Non-Combustibility in accordance with ASTM E84 & E136
(CAN/ULC-S102 & S114).
– Flame Spread 0 and Smoke Developed 0
– Non-Combustible Core
– 1/4", 1/2" and 5/8" Thickness — Class A unlimited slope in accordance with UL790 (CAN/ULC-S107).
– 5/8" Thickness — Meets requirements of Type X per ASTM C1177 and may be used in P series designs
as a thermal barrier.

System Performance – FM Approved
– Complies with requirements of FM 4450 and FM 4470
– Meets FM Class 1

Standards Compliance

Securock Glass-Mat roof board is manufactured to conform to ASTM C1177.

Physical Properties

*ASTM D3273 Mold Resistance Testing - In independent lab tests conducted on Securock Gypsum-Fiber roof board and Securock Glass-Mat roof board at the time of manufacture per ASTM D3273 Standard Test Method for Resistance

to Growth of Mold on the Surface of Interior Coatings in an Environmental Chamber, both panels scored a 10. The ASTM lab test may not accurately represent the mold performance of building materials in actual use. Given unsuitable project
conditions during storage, installation or after completion, any building material can be overwhelmed by mold. To manage the growth of mold, the best and most cost-effective strategy is to protect building products from water exposure
during storage and installation and after completion of the building. This can be accomplished by using good design and construction practices.

Width, standard 4' (1220 mm) 4' (1220 mm) 4' (1220 mm)

Length, standard 8' (2440 mm) 8' (2440 mm) 8' (2440 mm)

Pieces per unit for 4' x 8' sheet 42 30 30

Weight, nominal lbs./unit 4' x 8' sheet 1688 1995 2667

Weight, nominal lbs./sq. ft. 1.2 2.0 2.7

Flexural strength, parallel, lbs. min. per ASTM C473 40 80 100

Compressive strength, psi nominal 700-1000 700-1000 700-1000

Flute spannability per ASTM E661 2-5/8" 5" 8"

Permeance, perms per AST M E96 18 18 16

R Value per ASTM C518 0.36 0.53 0.54

Coefficient of thermal expansion,
inches/inch

°F, per ASTM E831



Linear variation with change in moisture,
inches/inch  %RH, per ASTM D1037

Water absorption, % max, per ASTM C473 10 10 10

Mold resistance per ASTM D3273* 10 10 10

Bending Radius 4' 6' 9'

Securock Glass-Mat Roof Board

1/4" (7.4 mm) 1/2" (12.7mm) 5/8" (15.9 mm)

8.5 x 10

6.3 x 10

-6

-6

8.5 x 10

6.3 x 10

-6

-6

8.5 x 10

6.3 x 10

-6

-6

Submittal Job Name
Approvals:

Contractor Date

Product Information

See usg.com for the most
up-to-date product information.

Trademarks

The following trademarks used
herein are owned by United
States Gypsum Company or
a related company:
USG, USG in stylized letters.

Securock,

Note

Products described here
may not be available in all
geographic markets. Consult

Manufactured by
United States Gypsum Company
550 West Adams Street
Chicago, IL 60661

your U.S. Gypsum Company
sales office or representative
for information.

Notice

We shall not be liable for
incidental or consequential
damages, directly or indirectly
sustained, nor for any loss
caused by application of these
goods not in accordance with
current printed instructions or
for other than their intended
use. Our liability is expressly

(800) USG.4YOU (874.4968)
usg.com

limited to replacement of
defective goods. Any claim
shall be deemed waived unless
made in writing to us within
thirty (30) days from the date it
was or reasonably should have
been discovered.

Safety First!

Follow good safety and
industrial hygiene practices
during handling and installation
of all products and systems.
Take necessary precautions

and wear the appropriate
personal protective equipment
as needed. Read material
safety data sheets and related
literature on products before
specification and/or installation.

RF32/rev. 10-11
© 2011, United States Gypsum Company
Printed in U.S.A.