35 Year Master Flash

The 35 Year Master Flash is a pipe flashing from Aztec Washer Company's Master Flash line, designed for the metal roofing industry. It is made of black EPDM rubber with a flexible aluminum base that is designed to mold to most panel configurations and roof pitches of metal roofs, regardless of pipe location.

Cut lines are marked on the flashing for multiple pipe sizes, and pipe diameters can be seen clearly for proper fitting. The sleeve flexibility absorbs vibration and pipe movement caused by expansion and contraction. The flashing uses compression-seal technology.

The flashing is listed with the Florida and California building codes, and compliance is named for six codes:

• International Building Code (IBC)
• International Residential Code (IRC)
• California Building Code (CBC)
• California Residential Code (CRC)
• Florida Building Code (FBC)
• Florida Residential Code (FRC)

The listing refers to ICC-ES, a subsidiary of the International Code Council. ICC-ES performs technical evaluations of building products, components, methods and materials and issues reports on compliance with the major U.S. building codes.

Pipe diameters run from 1/8 in. (3 mm) to 28 1/2 in. (724 mm), and bases run from 2 1/4 in. (57 mm) to 34 in. (863 mm). Every size is black EPDM. The Mini, the smallest size, is designed for solar and electrical applications. For each size, the entries below give the top opening, the pipe range, the base and the part number.

• Mini: closed top; pipe range closed to 1 in. (25 mm); base 2 1/4 in. (57 mm); part ICC-SQ051BX.
• #1: closed top; pipe range closed to 2 3/4 in. (70 mm); base 4 1/2 in. (114 mm); part ICC-SQ101BX.
• #2: top opening 7/8 in. (22 mm); pipe range 7/8 to 4 in. (22 to 101 mm); base 6 in. (152 mm); part ICC-SQ201BX.
• #3: closed top; pipe range closed to 5 3/4 in. (146 mm); base 8 in. (203 mm); part ICC-SQ301BX.
• #4: top opening 2 3/4 in. (69 mm); pipe range 2 3/4 to 7 in. (69 to 177 mm); base 10 in. (254 mm); part ICC-SQ401BX.
• #5: top opening 4 in. (101 mm); pipe range 4 to 8 1/4 in. (101 to 209 mm); base 11 in. (279 mm); part ICC-SQ501BX.
• #6: top opening 4 3/4 in. (120 mm); pipe range 4 3/4 to 10 in. (120 to 254 mm); base 12 in. (304 mm); part ICC-SQ601BX.
• #7: top opening 6 in. (152 mm); pipe range 6 to 11 in. (152 to 279 mm); base 14 in. (355 mm); part ICC-SQ701BX.
• #8: top opening 6 3/4 in. (171 mm); pipe range 6 3/4 to 12 in. (171 to 304 mm); base 17 in. (431 mm); part ICC-SQ801BX.
• #8X-C (Fix-A-Flash): closed top; pipe range closed to 15 1/2 in. (393 mm); base 19 1/2 in. (495 mm); part ICC-SQ801BXC.
• #8X-O (Fix-A-Flash): top opening 6 3/4 in. (171 mm); pipe range 6 3/4 to 15 1/2 in. (171 to 393 mm); base 19 1/2 in. (495 mm); part ICC-SQ801BX0.
• #9: top opening 9 1/2 in. (241 mm); pipe range 9 1/2 to 20 1/2 in. (241 to 520 mm); base 25 in. (635 mm); part ICC-SQ901BX.
• #9X: top opening 8 in. (203 mm); pipe range 8 to 20 1/2 in. (203 to 520 mm); base 25 in. (635 mm); part ICC-SQ901BXM.
• Maxi Closed: closed top; pipe range closed to 28 1/2 in. (724 mm); base 34 in. (863 mm); part ICC-SQ951BX-C.
• Maxi Open: top opening 12 in. (304 mm); pipe range 12 to 28 1/2 in. (304 to 724 mm); base 34 in. (863 mm); part ICC-SQ951BX-O.

The flashing is made of black EPDM rubber that is formulated for resistance to weathering from ozone and ultraviolet light. The base is flexible aluminum. Published test values for the EPDM:

• Ozone resistance: tested for 70 hours at 500 pphm.
• High temperature, intermittent: +275°F (+135°C).
• High temperature, continuous: +212°F (+100°C).
• Low temperature: -67°F (-55°C).
• Maximum compression set: 25%.

Trimming starts from the pipe's outside diameter: the diameter is found in the size table, and the flashing is trimmed along the outline shown for that size. On the 35 Year Master Flash, the opening is cut at least 20% smaller than the pipe's outside diameter. On steep roofs or deep corrugation, the next size up is used.

The base is fastened with Master Seal bonded washers and fasteners set 1 in. to 1 1/2 in. apart around the entire base. The five steps are measure and trim, slide, form, seal and complete. A 35 Year Master Flash installation uses the flashing, fasteners, washers, snips or scissors, a measuring tape, a marker or pencil and sealant.

The flashing carries a 35-year warranty.

Related Master Flash products are grouped by application. Master-Flex, Master Cap Dormer Seal and Middy are listed for custom applications. Solar-Flash is listed for solar applications, Solar Multi-Port CT for HVAC applications and Standard Retrofit for metal roof applications.