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L flashing

SSMLFLASH
Roofing trim · general flashing
Sanders standard spec
Legs3" × 3"
Material24 ga Kynar
Sold as10-ft section
Custom order form
OverviewMaterialsSizes & profileInstallationColors
L flashing installed system render
L Flashing — a clean 90-degree trim for headwalls, curbs and transitions
Simple 90° wall-to-roof trim
Any two leg lengths you need
Tight edge, clean lines
Hemmed edges available
24 & 26 gauge steel
29 standard colors
Up to 10′ lengths
Fabricated to your drawing
L Flashing is the workhorse 90 — two legs, your lengths, wherever a wall meets a deck, curb, or transition. Formed in your gauge and color, cut to length.

L flashing is fabricated from steel and finished in your choice of standard or custom color with a durable factory paint finish. The substrate carries the mill’s coating; the paint finish carries the coating manufacturer’s warranty. Tell us your color and gauge and we’ll match the job.

Gauge24 / 26 ga
L flashing — standard profile dimensions

Standard profile shown — online orders are exactly this piece. Need different dimensions? We custom-bend to order — request a quote.

Bend anglesStandard or noted
LengthUp to 10′
Miters & splice platesOptional — ask us

Step-by-step install for L flashing — laps, fastener spacing, sealant, and the transitions where it meets panel, wall, and valley. Open the full guide:

Available in every color on the SSM color chart — 29 standard colors plus custom finishes, color-matched to most manufacturers. Bare galvalume and galvanized are available too.

Want L flashing on your next roof?

Tell us the leg lengths, gauge, and color — we’ll quote it fast.

Get a free quote