Flex Securock Glass Mat Roof Board User Manual

Page 2

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

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.

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: S

ecurock

USG, USG in stylized letters.

Note

Products described here

may not be available in all

geographic markets. Consult

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

ecurock

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

Physical Properties

Submittal

Job Name

Approvals:

Contractor

Date

ecurock

Glass-Mat Roof Board

1/4" (7.4 mm)

1/2" (12.7mm)

5/8" (15.9 mm)

Width, standard

4' (1220 mm)

Length, standard

8' (2440 mm)

Pieces per unit for 4' x 8' sheet

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

100

Compressive strength, psi nominal

700-1000

Flute spannability per ASTM E661

2-5/8"

Permeance, perms per ASTM E96

R Value per ASTM C518

0.36

0.53

0.54

Coefficient of thermal expansion,
inches/inch



°F, per ASTM E831

8.5 x 10

-6

8.5 x 10

-6

8.5 x 10

-6

Linear variation with change in moisture,
inches/inch



%RH, per ASTM D1037

6.3 x 10

-6

6.3 x 10

-6

6.3 x 10

-6

Water absorption, % max, per ASTM C473

Mold resistance per ASTM D3273*

Bending Radius

*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.

Manufactured by

United States Gypsum Company

550 West Adams Street

Chicago, IL 60661

(800) USG.4YOU (874.4968)

usg.com