# Data dictionary

**Rolling Door vs Sectional Door Standards and Specification Ledger — version 1.1.0**

Sources checked 2026-09-17. 208 rows across eight CSV files, with the same complete rows in `rolling-vs-sectional-ledger.json`.

## Scope and evidence

This is a source-based U.S.-market specification reference, not a statistically representative product sample, a field-performance study or a certification. Standard clauses retain their edition and conditions. Product statements belong to the named model/configuration and document snapshot. Editorial prompts are not code requirements. The standards are voluntary unless made applicable through another governing instrument; the dataset does not establish jurisdictional adoption.

## Units and missing values

R-values use h·ft²·°F/Btu and U-factors use Btu/(h·ft²·°F), following DASMA TDS #163. Some product-page cells do not print the units; `unit_note` discloses the convention. No conversion or reciprocal calculation was performed. Air leakage is in cfm/ft² (cubic feet per minute per square foot), and is meaningful only with test pressure, method and configuration. Other units are inches, feet, lbf (pounds-force), N (newtons), complete cycles, cycles/day, years, events and dimensionless factors/ratios. Manufacturer/standard paired customary and metric values are source-reported, not newly converted.

An empty CSV cell is JSON `null`; it is never zero. “Not stated” means not established for that precise scope in the reviewed source, not that a model lacks the capability. A textual statement of non-applicability remains text. Boolean-looking title observations retain their source CSV strings. All nonempty data values—including numbers—are strings in JSON to preserve qualifiers and exact CSV parity. Composite display rows in the figures table are summaries; individual numeric inputs are in the calculations table.

## JSON layout

`files` maps exact CSV filenames to row counts and `table_key`; `tables` contains every complete CSV row and field. Top-level metadata supplies version, verification date, scope, creator, methodology, missing-value rule and reuse note. JSON is not merely a manifest. No claim of live distribution is made by an intended article URL.

## Standards crosswalk

Filename: `rolling-vs-sectional-standards-crosswalk.csv` · 38 rows · JSON key: `standards_crosswalk`.

| Field | Meaning |
| --- | --- |
| row_id | Stable row identifier within this table; do not use row position as an identifier. |
| topic | Requirement or comparison topic. |
| plain_english_question | Reader question the crosswalk row resolves. |
| sectional_clause | Applicable clause in the sectional product-standard column; blank when not stated/applicable. |
| sectional_requirement | Brief paraphrase of the sectional document’s provision or clearly stated absence; not independent legal advice. |
| rolling_clause | Applicable clause in the rolling product-standard column; blank when not stated/applicable. |
| rolling_requirement | Brief paraphrase of the rolling document’s provision or clearly stated absence; not independent legal advice. |
| sheet_clause | Applicable clause in the sheet product-standard column; blank when not stated/applicable. |
| sheet_requirement | Brief paraphrase of the sheet document’s provision or clearly stated absence; not independent legal advice. |
| directly_comparable | Editorial comparability assessment: a common number/unit does not automatically make configurations equivalent. |
| note | Material scope or interpretation qualification for this row. |
| sectional_source_url | Issuer URL for the sectional product standard. |
| rolling_source_url | Issuer URL for the rolling product standard. |
| sheet_source_url | Issuer URL for the sheet product standard. |
| additional_source_url | Additional source beyond the three product-standard columns. |
| date_verified | Actual source-check date in YYYY-MM-DD; not necessarily the document publication date. |
| evidence_type | Source-reported, Calculated, Source-grounded paraphrase, Editorial purchasing prompt, or Not stated in reviewed material. A manufacturer calculation remains Source-reported when Uptime did not calculate it. |
| publish_status | Publishable means the row is suitable with its scope and caveats. For an unknown value, this approves only the absence statement, not a numerical claim. |

## Published figures

Filename: `rolling-vs-sectional-published-figures.csv` · 43 rows · JSON key: `published_figures`.

| Field | Meaning |
| --- | --- |
| row_id | Stable row identifier within this table; do not use row position as an identifier. |
| manufacturer | Named source brand/publisher. Uptime appears only on its own calculations; brands are not assumed to be independent corporate groups. |
| model | Exact model, model family or guide-specification context disclosed by the source. |
| door_family | Door construction family; not a standardized performance class or rating. |
| figure_published | Name of the observed specification or clearly labeled calculated summary. |
| value | Reported text or numeric string, with qualifiers preserved. Blank/null means not established in reviewed material, never zero. Composite summary rows point to individual calculation rows. |
| unit | Unit of the reported value. Mixed dimensions remain labeled text; no unit conversion performed. |
| what_the_source_says_it_measures | Component, assembly, warranty, guide-specification or calculated scope attached to the value. |
| stated_method | Method attributed by the source, or Uptime’s stated formula. Blank means no method was established in the reviewed material. |
| evidence_type | Source-reported, Calculated, Source-grounded paraphrase, Editorial purchasing prompt, or Not stated in reviewed material. A manufacturer calculation remains Source-reported when Uptime did not calculate it. |
| source_url | Issuer URL for source evidence. Multiple URLs are separated by a semicolon. For original editorial/calculated material, an intended article anchor may identify its publication location. |
| verified_on | Actual source-check or calculation-check date in YYYY-MM-DD. |
| reuse_caution | Qualification that must accompany reuse; do not separate an attractive number from this condition. |
| document_edition_or_snapshot | Actual document edition or source-read snapshot. Not a fabricated publication date. |
| source_locator | Exact clause/page/table/section where available. A broad topic locator on an editorial prompt is not a claim that the source mandates that prompt. |
| publish_status | Publishable means the row is suitable with its scope and caveats. For an unknown value, this approves only the absence statement, not a numerical claim. |
| geography | Source market/scope. U.S.-market disclosures are not a national population estimate. |
| unit_note | How the unit convention was established; especially important where product cells omit printed R/U units. |
| supporting_source_url | Additional primary document needed to support the specific claim; blank means none added. |

## Standard title audit

Filename: `rolling-vs-sectional-standard-title-audit.csv` · 17 rows · JSON key: `standard_title_audit`.

| Field | Meaning |
| --- | --- |
| row_id | Stable row identifier within this table; do not use row position as an identifier. |
| standard | Standard being named in a title/reference-list observation. |
| where_the_title_appears | Specific issuer document or index in which that title was observed. |
| document_date_or_revision | Edition/snapshot of the document containing the observed title. |
| title_as_printed | Title wording transcribed as a bibliographic observation, not the source’s entire scope clause. |
| names_sectional | Textual yes/no indication of whether the displayed title names sectional doors; not a scope determination. |
| names_rolling | Textual yes/no indication of whether the displayed title names rolling doors; not a scope determination. |
| names_flexible | Textual yes/no indication of whether the displayed title names flexible doors; not a scope determination. |
| source_url | Issuer URL for source evidence. Multiple URLs are separated by a semicolon. For original editorial/calculated material, an intended article anchor may identify its publication location. |
| date_verified | Actual source-check date in YYYY-MM-DD; not necessarily the document publication date. |
| evidence_type | Source-reported, Calculated, Source-grounded paraphrase, Editorial purchasing prompt, or Not stated in reviewed material. A manufacturer calculation remains Source-reported when Uptime did not calculate it. |
| interpretation_note | Limits on what the title wording proves. |

## Definitions

Filename: `rolling-vs-sectional-definitions.csv` · 18 rows · JSON key: `definitions`.

| Field | Meaning |
| --- | --- |
| row_id | Stable row identifier within this table; do not use row position as an identifier. |
| term | Selected technical term needed for this comparison. |
| defined_in | Document in which the term or cross-reference appears. |
| clause | Source clause or reference locator. Blank means no applicable locator is supplied. |
| source_url | Issuer URL for source evidence. Multiple URLs are separated by a semicolon. For original editorial/calculated material, an intended article anchor may identify its publication location. |
| definition_summary | Uptime’s brief source-grounded paraphrase, not normative text. |
| date_verified | Actual source-check date in YYYY-MM-DD; not necessarily the document publication date. |
| evidence_type | Source-reported, Calculated, Source-grounded paraphrase, Editorial purchasing prompt, or Not stated in reviewed material. A manufacturer calculation remains Source-reported when Uptime did not calculate it. |
| reuse_note | Explanation of paraphrase status and the need to consult original wording. |

## Selection rules

Filename: `rolling-vs-sectional-selection-rules.csv` · 22 rows · JSON key: `selection_rules`.

| Field | Meaning |
| --- | --- |
| row_id | Stable row identifier within this table; do not use row position as an identifier. |
| condition_at_the_opening | Decision scenario, not a claim that it applies to the reader’s building. |
| points_to | Conditional editorial starting point, not a universal family winner or design approval. |
| why | Verified reason and limits behind the decision prompt. |
| basis | Relevant document/claim basis supporting the prompt. |
| basis_type | How the basis is classified; a recommendation remains editorial even when it relies on verified facts. |
| source_url | Issuer URL for source evidence. Multiple URLs are separated by a semicolon. For original editorial/calculated material, an intended article anchor may identify its publication location. |
| date_verified | Actual source-check date in YYYY-MM-DD; not necessarily the document publication date. |
| publish_status | Publishable means the row is suitable with its scope and caveats. For an unknown value, this approves only the absence statement, not a numerical claim. |

## Quote checklist

Filename: `rolling-vs-sectional-quote-checklist.csv` · 14 rows · JSON key: `quote_checklist`.

| Field | Meaning |
| --- | --- |
| field_no | Stable checklist number 1–14, matching the public article and printable worksheet. |
| group | Checklist organization: Building fit, Performance, Duty, Compliance or Commercial. |
| field | Purchasing question or information field. |
| what_to_request | Information to request from each supplier. Editorial prompt, not a mandatory inspection or code checklist. |
| why_it_matters | Reason the requested information improves a like-for-like comparison. |
| quote_a | Blank space for the first supplier’s answer; empty in the distributed reference. |
| quote_b | Blank space for the second supplier’s answer; empty in the distributed reference. |
| evidence_type | Source-reported, Calculated, Source-grounded paraphrase, Editorial purchasing prompt, or Not stated in reviewed material. A manufacturer calculation remains Source-reported when Uptime did not calculate it. |
| source_url | Issuer URL for source evidence. Multiple URLs are separated by a semicolon. For original editorial/calculated material, an intended article anchor may identify its publication location. |
| source_locator | Exact clause/page/table/section where available. A broad topic locator on an editorial prompt is not a claim that the source mandates that prompt. |
| date_verified | Actual source-check date in YYYY-MM-DD; not necessarily the document publication date. |

## Sources

Filename: `rolling-vs-sectional-sources.csv` · 35 rows · JSON key: `sources`.

| Field | Meaning |
| --- | --- |
| source_id | Stable source identifier used by the register and input-source references. |
| title | Source title or accurate descriptive bibliographic label. |
| issuer | Organization that issued the source. Commercial research/specifications remain attributed. |
| edition_or_revision | Issuer edition/revision or a clearly labeled undated snapshot; discrepancies are retained rather than silently reconciled. |
| source_type | Standard, manufacturer page/document, official guidance, technical sheet or original calculation. |
| url | Source URL. A source register entry does not imply permission to redistribute its complete document. |
| date_verified | Actual source-check date in YYYY-MM-DD; not necessarily the document publication date. |
| access_note | Precisely what was checked or not established; not a claim of reading every page or of local adoption. |

## Calculations

Filename: `rolling-vs-sectional-calculations.csv` · 21 rows · JSON key: `calculations`.

| Field | Meaning |
| --- | --- |
| row_id | Stable row identifier within this table; do not use row position as an identifier. |
| calculation | Name of the arithmetic example, not an engineering design procedure. |
| input_cycles | Target number of complete closed–open–closed cycles; not promised field life. |
| input_cycles_per_day | Assumed complete cycles per operating day. |
| input_days_per_year | Assumed operating days per year; only the explicit 365/260 examples are used. |
| input_interval_cycles | Assumed spacing in cycles between illustrated in-test maintenance events. |
| input_numerator | Numerator of the ratio; TH01 uses ESD40 U-factor 0.532. |
| input_denominator | Denominator of the ratio; TH01 uses Model 591 U-factor 0.13. |
| formula | Exact arithmetic operation used; variable meanings appear in the input columns. |
| result_unrounded | Computed result before display rounding, serialized as text. |
| result_display | Display result: one decimal for years, integer for events, two decimals for the U-factor ratio. |
| result_unit | years, events or dimensionless ratio. |
| assumptions | Conditions under which the calculation is meaningful. Workloads are hypothetical, not observed facility data. |
| source_url | Issuer URL for source evidence. Multiple URLs are separated by a semicolon. For original editorial/calculated material, an intended article anchor may identify its publication location. |
| input_source_ids | Related figure/source IDs and explicit assumption descriptions. |
| evidence_type | Source-reported, Calculated, Source-grounded paraphrase, Editorial purchasing prompt, or Not stated in reviewed material. A manufacturer calculation remains Source-reported when Uptime did not calculate it. |
| date_verified | Actual source-check date in YYYY-MM-DD; not necessarily the document publication date. |

## Reproduce the calculations

Run `python rolling-vs-sectional-calculations.py --verify` with this script and the CSV/JSON files in the same folder. The script validates every data row against JSON, recomputes the 21 arithmetic rows and checks normal, zero, invalid and boundary cases. It does not test equipment, verify the live website or create an engineering approval.

## Reuse

The downloads contain selected factual observations, brief source-attributed paraphrases and original annotations. They do not include complete standards, manuals or drawings. No blanket license is asserted for third-party material. Preserve the issuer citation, scope, edition, conditions and verification date when reusing a figure.

## Supporting sources

[DASMA TDS #163 Thermal Performance](https://www.dasma.com/wp-content/uploads/2022/09/TDS163..pdf) · [ANSI/DASMA 102-2018 Specifications for Sectional Doors](https://www.dasma.com/wp-content/uploads/2021/01/ANSIDASMA102.pdf) · [ANSI/DASMA 203-2020 Standard for Non-Fire Rated Rolling Doors](https://www.dasma.com/wp-content/uploads/2026/05/ANSI-DASMA-203-2020.pdf) · [ANSI/DASMA 109-2017 Determination of Life Cycling Performance](https://www.dasma.com/wp-content/uploads/pubs/Standards/ANSIDASMA109.pdf)