Plain felt Weatherstrip Profile

What this profile class means

Profile family: Felt seal
Profile subtype: Plain felt
Common application context: door, window
Contact mode: compression / wiping contact
Seal body: felt
Mounting interface: stapled/tacked/other documented surface mount

Flexible felt strip is fastened to a surface and compressed or brushed by the closing member.

Common terminology that may lead to this class includes: felt weatherstrip, plain felt. These terms are discovery clues only; they do not prove fit.

Identification order

1. Confirm the installed location and motion: low-cost door/window draft sealing.
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

• strip width — capture as an observed/measured field; do not invent a value.
• thickness — capture as an observed/measured field; do not invent a value.
• mount location — capture as an observed/measured field; do not invent a value.
• fastener method — 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 infer reinforcement or durability from appearance alone.

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• Do not publish a fit/supersession statement without explicit authoritative evidence for that relationship.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 — Maryland Energy Administration, Weatherstripping — https://energy.maryland.gov/residential/pages/technicalassistance/weatherstripping.aspx — supports: Generic tension/V-strip, felt, pile, foam tape, reinforced foam, tubular gasket and door-seal terminology; application distinctions.
• Source — PNNL Building America Solution Center, Add Weatherstrip to Windows and Doors — https://basc.pnnl.gov/diy-guides/add-weatherstrip-windows-and-doors — supports: Government-backed generic weatherstripping type taxonomy and door/window intent separation.

Useful next steps

• Felt Weatherstrip Profiles — Profile family
• Measure Foam & Felt Weatherstrip — Measurement guide
• Door Weatherstrip Identification — Application guide
• Window 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.