Automatic door bottom Weatherstrip Profile

What this profile class means

Profile family: Door bottom assembly
Profile subtype: Automatic door bottom
Common application context: door
Contact mode: drop compression
Seal body: movable drop seal
Mounting interface: surface|semi-mortise|full-mortise assembly

Mechanism lowers a sealing element when the door closes.

Common terminology that may lead to this class includes: automatic door bottom, drop seal, automatic drop seal. These terms are discovery clues only; they do not prove fit.

Identification order

1. Confirm the installed location and motion: pedestrian door bottom.
2. Identify the mounting/receiver interface before judging the outer body shape.
3. Inspect an end-view cross-section and note orientation, mirrored/asymmetric features, fibres, chambers, leaves/flaps, carriers, or fasteners as applicable.
4. Measure the critical fields below using the the measurement datum and tool-resolution rules and preserve uncertainty.
5. Compare only against records with compatible interface geometry. Treat visual similarity as a clue, not as compatibility evidence.
6. Keep product identity and replacement fit as separate claims under this evidence policy.

What to measure

• case geometry — capture as an observed/measured field; do not invent a value.
• mounting mode — capture as an observed/measured field; do not invent a value.
• drop-seal insert identity if serviceable — capture as an observed/measured field; do not invent a value.

Also record the measurement tool, resolution, repeated readings where practical, sample condition, original reported value/unit, and measurement notes. If a critical field cannot be measured safely or reliably, leave it UNMEASURED rather than guessing.

What not to infer

Do not classify the whole mechanism as a simple weatherstrip profile or infer insert interchangeability.

Additional guardrails:

• Do not infer brand/model compatibility from a family name or silhouette.
• Do not infer a universal dimension from terms such as “kerf,” “T-slot,” “pile,” “bulb,” “sweep,” or “felt.”
• Do not infer material composition unless it is marked, directly observed at the generic class level, or source-backed.
• Do not publish a fit/supersession statement without explicit authoritative evidence for that relationship.

Evidence and provenance

This page uses source-backed profile taxonomy, measurement rules and evidence boundaries. The site structure does not broaden the scope of the cited sources or establish exact replacement fit.

• Source — Pemko / ASSA ABLOY, Everything You Wanted to Know About Pemko — https://www.pemko.com/content/pemko/us/en/resource-library/knowledge-center/blog/blog-post.aehdynamic-everything-you-wanted-to-know-about-pemko-636abfafabed64003d9ab061_pemko.html — supports: Door bottoms include sweeps, shoes and automatic door bottoms; brush-seal terminology.

Useful next steps

• Door Bottom Seals, Sweeps & Shoes — Profile family
• Measure Door Bottom Seals & Sweeps — Measurement guide
• Door Weatherstrip Identification — Application guide
• Weatherstrip Terminology Guide — Terminology guide
• Weatherstrip Identification Methodology — Methodology

Integration note

Use the Weatherstrip Reference exactly as written. Do not create an alias page for the common terms above. Any original illustration used on this route must remain labelled “Reference graphic — schematic, not exact product depiction” unless a later exact record binds geometry to evidence.