MortarFlash Stainless Steel Flashing Roll

MortarFlash® Stainless Steel Flashing

Thickness: 3-Mil | Size: 18″ x 60′

MortarFlash® Stainless Steel fabric flashing consists of a single sheet of Type 304 stainless steel bonded to a polymeric fabric. This flashing membrane features excellent puncture and tear resistance, flexibility regardless of installation temperature, and is designed for superior durability.

MortarFlash Stainless Steel is suitable for use at all flashing locations, including base of wall, above exterior wall openings and bond beams, in parapet walls, and wherever flashing is desirable. Termination bar, stainless steel drip edge, fasteners, and sealant is recommended for installation.

Document TitleDocument TypeDownloadhf:doc_tags
MortarFlash® Stainless Steel Flashing Technical Data SheetTechnical Data Sheetstechnical-data-sheets
Mortar Net termination bar

Termination Bar

Now offering type 304 stainless steel and aluminum termination bar in 8′ lengths. They are also available in the T1 and T2 profile to fit your project needs. We always recommend termination bar to mechanically fasten the flashing.

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Metal Drip Edge colors

Metal Drip Edge

Mortar Net’s drip edge’s are available in stainless steel, cold-rolled copper, and four colors of Kynar-coated galvanized steel. All come with a 3/8” hemmed edge to create clean-looking edges during installation. Combine with our metal corner drip edges to complete the installation.

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Mortar Net adjustable drip edge corner

Metal Drip Edge Corners

Mortar Net Solutions offers metal drip edge corners that match the profile of our drip edge to help maintain the functionality of the flashing installation while creating a clean-looking corner every time.

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BTL-1 Butyl Sealant

BTL-1™ Butyl Sealant

BTL-1 is a synthetic rubber sealant that is ideal for most construction applications. It produces high-performance joints with both high strength and elasticity.

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  • Available Grades: Type 304 stainless steel (standard) and Type 316 stainless steel (for coastal/more corrosive environments)
  • Heat Resistance: Withstands high-heat applications (including spray polyurethane foam)
  • Surface Adhesion: Stainless steel face provides excellent adhesion for air barriers and sealants
  • UV Stability: Unlimited exposure; must be concealed within 180 days to prevent damage
  • Workability: Flexible, easy to cut, and form by hand
  • Sustainability: Made with 60% recycled content; fully recyclable
  • Non-Staining: Safe for use with limestone

Applications:

  • Through-wall flashing
  • Transition membrane (air barriers, roofing, waterproofing) 
  • Window and door sill pan flashing
  • Jamb closure flashing
  • Roof-to-parapet flashing
  • Deck ledger flashing

Compatibility:

  •  Air barriers 
  • Spray polyurethane foam 
  • Insulation boards 
  • Construction sealants
THICKNESSROLL HEIGHTROLL LENGTHROLLS/BOXSF/BOXBOXES/PALLET
0.002″12″60′212050
18″218030
24″112030
36″118030

Related Project Profiles

Efficient Flashing Restoration at Porter County 911 Call Center

When RestoreWorks faced persistent window leaks at Porter County’s 911 Call Center, they turned to Keene’s TotalFlash® system for a faster, more reliable solution. With pre-assembled panels and expert support, crews cut flashing time nearly in half—saving labor, reducing complexity, and delivering long-term protection with ease.

Need Support?

Contact our Masonry Systems Specialist.

Greg Skyta