How do you sequence trades on a Hargeisa build?

Work sequencing skills gaps in Hargeisa appear when the order of trades is set by whoever is free that week, not by what the previous trade left behind. A crew starts blockwork before the setting out is checked, or lays floor screed over a slab that has not cured. The next trade then hides the defect, and the repair costs more than the original work.

A skills gap here is not the same as a missing trade. A mason can lay blocks well and still start too early, because nobody on site has the authority or the habit to say the wall is not ready. The gap sits with the person who plans the order of work, not only with the person holding the trowel.

What does a work sequencing skills gap look like on a Hargeisa site?

It looks like two trades working in the same place at the same time, or one trade starting on a surface that has not been signed off.

Set out the sequence of a small building and the failure points become clear. Excavate, blind, place reinforcement, pour, cure, then build up. Each step creates a surface or a level the next trade depends on. If the concrete is still green when blockwork starts, the wall loads a slab that has not gained strength. If floor screed goes down before the blockwork above is finished, dropped mortar and water sit in the screed.

On a Hargeisa build the pressure is often time, not skill. A crew finishes one trade and moves to the next plot, so the follow-on trade starts without anyone checking the previous work. The defect that appears months later, a hollow patch under tiles or a crack along a wall, is the trace of that decision. Ask the site supervisor which trade is allowed to start, and what evidence allows it. If the answer is "the crew was available", the sequence is being set by attendance rather than by readiness.

How do avoidable trade clashes start?

They start when the programme lists trades in parallel and nobody marks the point where one trade must stop for the other to be inspected.

Take the wet trades. Plaster, screed and tiling all need a dry, stable background. If the roof is not watertight, or the blockwork has not had time to move, moisture gets trapped. A supervisor who has never worked through a full build may not know that the plaster should wait. A supervisor who has only worked on one trade may not see the clash coming until both crews are on site.

The clash is usually avoidable because the information exists. The drawing shows the levels, the specification names the materials, and general practice says concrete needs curing time before it carries load. What is missing is the step where somebody reads the drawing against the site and writes the order down. Confirm the curing period and any cover requirements against the project specification rather than a rule remembered on site. Where the specification is silent, ask the design engineer to state the period in writing before the next trade starts.

How do you detect the gap before the defect shows?

Walk the site at the changeover between trades, and ask for the record that shows the previous trade was checked.

Three checks catch most sequencing gaps:

• Ask for the programme and look for the words that stop work: cure, inspect, approve. A programme with no hold points is a list of trades, not a sequence.
• Visit at a changeover, not at the end. Watch whether the next crew is working on a surface that has been signed off, and ask who signed it.
• Ask for test records or inspection sheets for the work now covered. If the reinforcement in a footing was inspected before the pour, there should be a dated record. If there is none, ask the supervisor how the cover was confirmed.

Where a Hargeisa site has no such records, treat the covered work as unverified and ask for a method to check it, such as a cover meter or a trial opening, before accepting the next stage. Ask the municipal engineer's office which inspection stages it expects to see on a permitted build, and match the site record to that list.

What to do next

Before the next trade starts, write a one-page sequence for the remaining work with a hold point at every changeover. Name who inspects, what they check and what record they sign. Walk the site with the supervisor at the first hold point and confirm the record is being kept. Repeat the walk at each changeover until the habit holds.