Uniformat D5030

Smoke and heat detectors

Also called smoke detector, heat detector

• Confidence C
• Version 0.1.0 (permanent link)
• Reviewed 2026-10-22

This is version 0.1.0. The latest is 0.5.0.

Service life

Years in service. One stated life so far; the band will widen as sources are added.

One source. This value rests on a single document (General depreciation rates (IR265), July 2021, p43). Treat it as that source's figure, not a settled life, until others confirm it.

Basis

• 20 years · General depreciation rates (IR265), July 2021, p43 · BDFO “Heat detectors” — Inland Revenue (Te Tari Taake), New Zealand (accounting life)
  Printed page 43. BDFO Building fit-out (when in books separately from building cost). Printed DV 10%, SL 7%. Tax depreciation lives set by the Commissioner of Inland Revenue for New Zealand income tax, not engineering or asset-management lives; they are banded and often short (e.g. reticulation piping 25 years). The July 2021 edition was the newest PDF reachable; the online Depreciation Rate Finder may hold later determinations.
• 20 years · General depreciation rates (IR265), July 2021, p44 · BDFO “Smoke detectors” — Inland Revenue (Te Tari Taake), New Zealand (accounting life)
  Printed page 44. BDFO Building fit-out (when in books separately from building cost). Printed DV 10%, SL 7%. Tax depreciation lives set by the Commissioner of Inland Revenue for New Zealand income tax, not engineering or asset-management lives; they are banded and often short (e.g. reticulation piping 25 years). The July 2021 edition was the newest PDF reachable; the online Depreciation Rate Finder may hold later determinations.

How sources are chosen and recorded: sourcing policy.

Preventive maintenance

3 tasks in 2 work orders. Intervals that fall due together are one visit: the every 5 years visit also covers the every 2 years tasks.

Download the tasks as CSV

Frequencies are ISO 8601 durations in the data (P3M = every 3 months).

Open questions

• Every source here is a published planning, design or accounting life. None is observed replacement data.

Know the answer? Send it with a source to [email protected].

Cite this

Citation

unfinished.one (2026). Smoke and heat detectors, v0.1.0. https://unfinished.one/c/smoke-heat-detector/v/0.1.0

BibTeX

@misc{unfinished_smoke_heat_detector_0_1_0,
  title = {Smoke and heat detectors},
  author = {{unfinished.one}},
  year = {2026},
  version = {0.1.0},
  url = {https://unfinished.one/c/smoke-heat-detector/v/0.1.0},
  note = {CC BY 4.0}
}

Licence CC BY 4.0 · How to cite · JSON · Versions: 0.5.0, 0.2.0, 0.1.0