Architectural Flashing Supply
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Basic flashing profile identification · Lesson 3 of 4

Basic flashing profile identification: methods and worked application

The nine-step identification method with worked examples: reading a Drip Edge, telling variants apart by their hems, working out girth, counting pieces for a run and filling in a profile ID card.

You will be able to: Apply the nine-step method to a library profile: count legs, read bends and hems, match the family and variant, work out the girth, check the AFS limits and record the result so the shop forms the same piece.

13 min · 12 slides · 10 questions

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Slide 1 of 12

The nine steps

Identify a profile in nine steps: place, legs, bends, hems, parts, match, measure, limits, record.

Each step rules things out, so do them in order and write each result down as you go.

Identify a flashing profile in nine stepsA top-to-bottom flow of nine steps: where on the building, count legs, read bends, find hems, name the parts, match the library, measure and add up the girth, check AFS limits, then record with a photo and read back. A dashed amber note after step six says to measure every leg on site when a shape is marked dimensions to confirm and to use the system name and approved print for a Drexel system.Identify a profile in nine stepsDo them in order; each one rules things out1Where on the building?Name the family2Count the legsA, B, C from a free edge3Read each benddirection and turn size4Find the hemsend, type and face5Name the partsflange, face, drip, kick6Match the libraryfamily and variantMarked "dimensions to confirm"?Measure every leg on site.A Drexel system? Use its nameand the maker’s approved print.7Measure the legsadd up the girth8Check AFS limitsgirth, flanges, length9Record and read backphoto with one checked size

A top-to-bottom flow of nine steps: where on the building, count legs, read bends, find hems, name the parts, match the library, measure and add up the girth, check AFS limits, then record with a photo and read back. A dashed amber note after step six says to measure every leg on site when a shape is marked dimensions to confirm and to use the system name and approved print for a Drexel system.

1
Where on the building: say where the piece goes, which names the family
2
Count the legs from one free edge and letter them A, B, C
3
Read each bend: the turn in degrees and whether it turns left or right
4
Find the hems: the end, the type, the return, the gap and the face
5
Name the parts only where a drawing, a maker or the library names them
6
Match the library: family, then legs, then bends, then hems, to a profile and variant
7
Measure every leg and add up the girth, hems included
8
Check the AFS limits: girth, end flange, leg between bends, hem return and length
9
Record the profile ID card, add a photo with one checked dimension and read it back
The method in order. Each step rules profiles out, and the amber note is the check that stops a template being mistaken for a drawing.

Sources

Glossary

Turn
How many degrees the sheet changes direction at a bend, and whether it turns left or right as the piece is drawn from leg A.
Hem return
The length of the folded-back part of a hem; an open hem adds twice its return plus its gap to the girth.
Hem face
The face of the sheet a hem folds to. FlashDraft calls the face the profile curls toward inside; new AFS hems start inside, both ends on the same face.
Variant
A library shape that differs from its profile in a feature or two, such as a hem or a size; Counter Flashing 2 is Counter Flashing 1 plus an open hem, with one leg 0.125 in longer and one 0.125 in shorter.
Profile ID card
The record of a profile: family, AFS name and variant, legs, bends, hems with face, girth sum, material, length, a photo with a tape in frame and who checked it.