Sequencing Liquid Screed Pours Across Multiple UFH Zones

We look at the floor plan alongside access routes for the screed pump, agreeing with the main contractor which areas are poured first, and making sure that later access to unpoured zones isn't blocked by screed that needs time to firm up before it can be walked on.

Once a zone is poured it needs protecting from foot traffic and other trades until it has firmed up sufficiently, which has knock-on implications for site logistics when other work is continuing in adjoining zones on the same day.

A simple written or drawn pour sequence, shared with the main contractor and other trades ahead of time, reduces the chance of confusion about which rooms are accessible on a given day and which are off-limits while curing. This is a small piece of coordination that avoids costly damage to a freshly poured zone from someone unaware it had just been completed.

Where several trades are working across a large site at once, a short daily briefing on which areas have just been poured, alongside the written plan, keeps everyone up to date as the sequence progresses rather than relying solely on a plan drawn up at the start of the job.

Where zones fed from separate manifolds are poured on different days, we check that pipework in the zone not yet poured remains fully protected and that its manifold connections aren't disturbed by work continuing in the zone being poured that day, since the two areas often share access routes or adjoining walls.

This is particularly relevant where a manifold cabinet serves circuits crossing between two zones scheduled for different pour dates, in which case the sequence needs to account for that shared boundary explicitly rather than treating each zone as entirely separate.

Build programmes change, and a pour sequence agreed weeks in advance sometimes needs revisiting if another trade falls behind or a room isn't ready as expected. We stay in contact with the main contractor in the run-up to pour days so the sequence can be adjusted without losing the coordination benefits of having planned it in the first place.

Where a zone has to be pushed back, we flag any knock-on effect on adjoining areas already poured, such as how long they'll need protecting for before the next stage of work can safely proceed around them.