Uniformat D4010
Sprinkler system, wet pipe
Also called wet system, sprinkler, wet sprinkler
Service life
Years in service. The band runs from the shortest to the longest life the sources state, so it shows how much they disagree, not how long 80% of units last. The line is the median of the stated lives.
Basis
- 50 years · CNA e-Tool Estimated Useful Life Table, p14 · HUD CNA 3.6.1.1 “Building fire suppression sprinklers, standpipes” — U.S. Department of Housing and Urban Development (planning life)Same life for family and elderly properties. US multifamily housing. Neither HUD nor the municipal rows separate wet from dry systems.
- 25 years · The Blue Mountains: POL.COR.19.04 Tangible Capital Assets Policy, p11 · “Sprinkler System” (accounting life)Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page.
- 40 years · Grey Highlands: By-law No. 2026-052, Tangible Capital Asset Policy A09-F-03, p11 · “Sprinkler System” (accounting life)Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page.
- 25 years · Meaford: By-law 2020-83, Tangible Capital Asset Policy, Appendix A Estimated Useful Lives, p17 · “Fire Protection - Sprinkler System” (accounting life)Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page.
- 20 years · Amherstburg: Tangible Capital Assets Policy, Appendix A: TCA Categories, Life Years, and Thresholds, p8 · “Plumbing - Sprinkler System” (accounting life)Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page.
How sources are chosen and recorded: sourcing policy.
Municipal accounting lives for fire protection (D40)
8 municipal policies from Ontario set a life for fire protection as a whole, from 5 distinct tables: 20–40 years, median 22.5. These are amortization periods chosen for accounting, not measured lives, and they describe the system rather than this component.
Years. Each dot is one stated life and each bar a stated range; equal values stack. The dashed line is the median. Policies that copy the same table count once.
All 9 stated lives
| Municipality | As written | Years | Source |
|---|---|---|---|
| Amherstburg | Fire Safety - Control Panel, Smoke Detectors | 20 | p8 · 2026 |
| Amherstburg | Plumbing - Sprinkler System | 20 | p8 · 2026 |
| Grey Highlands | Fire Alarms | 20 | p11 · 2026 |
| The Blue Mountains | Fire Alarms | 20 | p11 · 2019 |
| Bancroft, Centre Hastings, Hastings Highlands, Wollaston · same table | Sprinkler/Fire System | 20–25 | p5, p4, p6, p5 |
| Meaford | Fire Protection - Sprinkler System | 25 | p17 · 2020 |
| Meaford | Fire Protection - Alarm Panel | 25 | p17 · 2020 |
| The Blue Mountains | Sprinkler System | 25 | p11 · 2019 |
| Grey Highlands | Sprinkler System | 40 | p11 · 2026 |
Each row was matched to its page automatically: the label and the number appear in the text of the cited page. An editor has not yet compared every row with the table, so follow the page link before relying on one. About the policies · All approved rows as JSON
Preventive maintenance
No maintenance tasks are sourced for this component yet.
Open questions
- The sources disagree by a factor of two (20 to 50 years). Do the shorter municipal lives reflect accounting choices or real replacement?
- HUD gives planning lives for US multifamily housing; the municipal rows are Ontario accounting lives. Neither is observed replacement data.
- No preventive maintenance tasks are sourced yet.
Know the answer? Send it with a source to [email protected].
Cite this
Citation
unfinished.one (2026). Sprinkler system, wet pipe, v0.1.0. https://unfinished.one/c/sprinkler-wet/v/0.1.0BibTeX
@misc{unfinished_sprinkler_wet_0_1_0,
title = {Sprinkler system, wet pipe},
author = {{unfinished.one}},
year = {2026},
version = {0.1.0},
url = {https://unfinished.one/c/sprinkler-wet/v/0.1.0},
note = {CC BY 4.0}
}Licence CC BY 4.0 · How to cite · JSON · Versions: 0.1.0