Why as-builts get stuck
Every fire protection job changes in the field: a main shifted to clear a duct, heads moved after a ceiling change, a valve relocated for access. The installer marks it on a paper set or a PDF, and the redlines sit in a truck or a project folder while retention money waits on the closeout package. Owners and maintenance contractors depend on accurate record drawings for inspection, testing and future renovation, so a careless as-built causes problems for years.
How redlines become record drawings
- Collect everything. Redlined sets, change orders, RFI responses, approved revisions and field photos.
- Draft the changes. The approved shop drawings are updated to match the marked field conditions, with a revision block that says what changed.
- Flag what's unclear. Illegible marks, missing dimensions and conflicts between markups go back to the field as questions, not guesses.
- Contractor confirms. The installing contractor reviews the record set and confirms it reflects what was built. A remote drafter can only draw what the field reports.
- Package for closeout. PDFs and native files in the format the specification and owner ask for.
Standpipe drafting under NFPA 14
NFPA 14, the Standard for the Installation of Standpipe and Hose Systems, covers standpipes in multi-story and large buildings. Requirements depend on the edition adopted locally, the building code and the AHJ, and system type and class are decided by the designer. Typical drafting scope:
- Riser diagrams showing each standpipe, floor control valves, hose connections and interconnections
- Floor plans locating hose connections, usually in stairs, as designed
- Fire department connection and its piping
- Pressure-regulating device locations where the designer has specified them
- Drain risers and test connections
- Details and notes tied to the hydraulic calculations
Standpipe hydraulic calculations follow the designer's basis of design, and in high-rise work often tie into a fire pump. The same rule applies as for sprinklers: a drafter builds and formats the calculation model, and the responsible designer sets the criteria and reviews the results.
What you provide
- Approved shop drawings as native files
- All field redlines, legible scans or PDFs
- Change orders and RFI responses
- Field photos of risers and valve locations
- Specification closeout requirements
- Stair and floor plans for standpipe work
- Designer criteria for standpipe class and sizing
- Your title block and revision conventions
Common questions
Can you create as-builts for an old system with no drawings?
Only from information someone collects on site, such as a field survey, measurements and photos. A drafter can't verify existing conditions remotely.
Do record drawings need a signature?
That depends on the contract, owner and AHJ. Many projects only need the contractor's confirmation; check the specification.
Closeout package waiting on as-builts? Send the redlines and approved set.
Send drawings for a quote