MORTARFLASH® STAINLESS STEEL THROUGH-WALL FLASHING
MortarFlash® Stainless Steel Flashing is a high-performance flashing membrane engineered for durability, flexibility, and long-term protection in masonry wall systems. It features a flexible 2 mil sheet of Type 304 stainless steel laminated to a polymeric fabric, providing exceptional puncture resistance, tear strength, and corrosion resistance.
Designed for demanding construction environments, MortarFlash Stainless Steel delivers reliable moisture protection at critical wall flashing locations including base of wall, openings, parapets, and bond beams.
FEATURES
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Stainless steel durability – 2 mil Type 304 stainless steel provides exceptional strength and corrosion resistance
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High puncture resistance – fabric reinforcement improves tear resistance and jobsite durability
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Flexible installation – easy to cut, form, and install in a variety of flashing details
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Excellent adhesion surface – stainless steel face bonds well with air barriers and sealants
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High heat resistance – compatible with spray polyurethane foam applications
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UV stable material – unlimited UV resistance (must be concealed within 180 days)
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Non-staining – safe for use with sensitive masonry materials such as limestone
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Sustainable material – manufactured with approximately 60% recycled stainless steel and fully recyclable
APPLICATIONS
MortarFlash Stainless Steel Flashing is designed for a wide range of masonry flashing and building envelope applications.
Common applications include:
- base-of-wall through-wall flashing
- flashing above windows and doors
- bond beam flashing
- parapet wall flashing
- roof-to-parapet transitions
- window and door sill pan flashing
- jamb closure flashing
- deck ledger flashing
COMPATIBILITY
MortarFlash Stainless Steel Flashing is compatible with many common building envelope materials, including:
- air barrier systems
- spray polyurethane foam insulation
- rigid insulation boards
- construction sealants and adhesives
INSTALLATION
MortarFlash Stainless Steel Flashing is installed at critical moisture control locations within masonry walls. Installation typically includes termination bars, stainless steel drip edges, mechanical fasteners, and compatible sealants to ensure proper drainage and long-term performance.
TECHNICAL DATA
| Property |
Test Method |
MortarFlash SS |
| Puncture (PSI) |
ASTM E154 |
2,500+ |
| Tensile |
ASTM D412 |
100,000+ |
| Fire Resistant |
ASTM E84 |
Pass |
| Mold Resistant |
ASTM D3273 |
Pass |
| Recycled Content |
|
60% – 70% |
| Recyclable Material |
|
Yes |
| UV Exposure (days) |
|
Unlimited |
PACKAGING
| Thickness |
Roll Height |
Roll Length |
Rolls/Box |
LF/Box |
Boxes/Pallet |
| 0.002" |
12" |
60' |
2 |
120 |
50 |
| 0.002" |
18" |
60' |
2 |
120 |
30 |
| 0.002" |
24" |
60' |
1 |
60 |
30 |
| 0.002" |
36" |
60' |
1 |
60 |
30 |
RESOURCES
