In brief
- A clerk of works who cannot read reinforcement drawings signs off on steel that does not match the design.
- Test drawing literacy at interview with one beam and one column detail, not with a certificate.
- Ask the municipal engineer's office what records the project file should hold, and check the file yourself.
Contents
Ask any clerk of works in Garowe to read a beam drawing out loud with the steel fixer before the bars are tied. If the two of them cannot agree on the bar mark, the diameter and where the bar stops, the clerk of works skills on that site do not cover reinforcement. The gap is one of reading details, not of attendance.
What does the clerk of works actually have to read?
The clerk of works reads the bar schedule, the section and the placing drawing together, then checks the steel on the ground against all three.
A reinforcement drawing carries the bar mark, the diameter and spacing, the shape code, the lap and cover, and the level at which the bar is placed. A beam section may show four bars at the bottom and two at the top, while the schedule sets different lengths for each. Reading only the section tells the fixer nothing about where a bar starts or ends. The clerk of works holds the drawing, the schedule and the tape, and matches each bar to its mark before the concrete arrives. In Puntland the engineer can be off site for days, so the clerk of works is often the only person checking against the design. Where the drawing set is incomplete, ask the design engineer for the missing section rather than letting the fixer decide a lap length from habit. General practice sets laps and cover by bar diameter and exposure, but the project's specification and engineer govern them, so confirm each value before the pour.
How does the gap show up in the work?
When nobody can read the detail, the steel is placed by eye and the error is buried in the beam.
A fixer working from memory places similar bars at similar spacing. If the schedule called for a shorter top bar or an extra link at a support, the mistake is invisible once the formwork closes and the concrete is placed. Cover suffers first: a bar pushed hard against the shutter leaves no concrete between steel and air. On the coast and in hot inland conditions, that cover controls how long the reinforcement lasts. Records suffer next. A clerk of works who cannot read the schedule cannot fill a reinforcement inspection sheet with bar marks and diameters, so the file holds a signature and no measurements. A client who later asks whether the beams were built as drawn gets no answer. The same gap appears in the steel delivered to site: bars sorted into the wrong pile by diameter are hard to spot without the schedule in hand. Ask to see whether the site keeps a bar schedule at all, and whether the clerk of works writes measurements on it during inspection.
How do you test the skill before you hire?
Give the candidate one beam section, one column section and the matching bar schedule, and ask for a marking out of where each bar goes.
The test takes thirty minutes and needs no site. Ask the candidate to call out each bar to a fixer standing beside them, because that is the job. Watch for three things: whether they name the bar mark and diameter from the schedule, whether they set the cover by the detail rather than by eye, and whether they stop and ask for a missing section instead of assuming. Certificates and years of attendance say little about this. For a client, the same test works on an existing clerk of works, and the answer tells you what to fix. Local practice varies, so ask the municipal engineer's office what the project file should contain, and walk a recent building with an engineer to see how the steel was actually placed. Confirm all limits against the project's specification.
What to do next
Pick one beam on your current job and one clerk of works. Hand over the section and the bar schedule, and ask for a marking out of every bar before the next pour, with measurements written on the sheet. Keep that sheet in the project file. If the marking out fails, arrange the training or replace the role before the steel is covered.
Frequently asked questions
Does a clerk of works in Garowe need a formal qualification?
Ask the employer and the project specification what the role requires. What matters on site is whether the person can read the reinforcement drawing and bar schedule, measure what is fixed and record it. Test that directly.
Local reporting: this article is written for building work in Garowe and Puntland. Ground conditions, prices and rules differ between places; confirm the details for your own site.