MODIFIED FLASHING MB

Product Data Sheet

07 14 13

No. 744

MODIFIED FLASHING MB
Modified Bitumen Flashing Cap Sheet

DESCRIPTION

MODIFIED FLASHING MB is a premium, fire-resistant membrane with a granule surface, designed for both hot and cold applications. It features a fiberglass reinforced non-woven polyester mat, providing superior dimensional stability, exceptional tear strength, and robust puncture resistance. Crafted with high-quality asphaltic bitumen and SBS elastomers, this membrane offers long-lasting durability, flexibility, and ease of maintenance.

USES

MODIFIED FLASHING MB is designed for use with HRM 714 from W. R. MEADOWS Hot Rubberized Asphalt System as an exposed flashing membrane.

FEATURES/BENEFITS

• Easy to install
• Long lasting

PACKAGING

32.8’ x 3.3’ (10 m x 1 m) standard rolls

SPECIFICATIONS/STANDARDS

• ASTM D6164 Type 1, Grade G
• Underwriter’s Laboratories (UL) Classified
• Factory Mutual (FM) Approved
• Florida Building Code (FBC)
• Texas Department of Insurance (TDI)

TECHNICAL DATA

PROPERTY (ASTM D5147)	TEST RESULTS	ASTM D6164 Minimum
Tensile Strength (lbf/in), 0°F (MD/XMD)	135/120 lbf	70 lbf/in
Tensile Strength (lbf/in), 73°F (MD/XMD)	98/89 lbf	50 lbf/in
Elongation (% @ Max Load), 0°F (MD/XMD)	49/48%	20%
Elongation (% @ 5% Max Load), 73°F (MD/XMD)	62/68%	35%
Tear Strength (lbf), 73 °F (MD/XMD)	129/117 lbf	55 lbf
Low Temperature Flexibility, (°F)	0°F	0°F
Dimensional Stability. %	<0.2%	1%
PHYSICAL PROPERTIES
Thickness	150 Mils (3.8 mm)
Weight	105 Lb. (48 kg)
Color	Gray

All technical data is typical information and will vary due to testing methods, site conditions, temperature, curing, procedures and batching.  Statistical differences in test results should be anticipated.  On-site testing results may not correlate to published laboratory results due to testing variations from laboratory conditions.

APPLICATION

For full application details, please refer to HRM 714 system assembly guidelines.

2025-02

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