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Gypsum concrete underlayment

Gypsum concrete underlayment punch checklist

Gypsum concrete underlayment punch is where small misses become callbacks after the crew has demobilized. This checklist walks the finished work the way the owner and the next trade will see it, with the photo that closes each item instead of a note that reopens it. Work is commonly verified against manufacturer's published instructions. Confirm the edition your authority having jurisdiction has adopted.

Items
3
Photos required
5

Who runs it

The underlayment crew lead on a callback, or the GC's superintendent closing floor-prep punch before the flooring goes in.

When in the schedule

During closeout before floor goods, once other trades have trafficked the underlayment and any drying cracks have shown.

The checklist

Every item, and the photo that proves it

The photo count on each row is what RTI would require before the item can be submitted. Copy the list as is, or load it into RTI and let the gate enforce it.

01

Defects

  • Cracks and soft or dusting areas located

    Floor walked and sounded for cracks, soft spots and dusting, each marked with a close and a wide locating photo.

    2 photos
  • Edges and penetrations checked

    Thresholds, wall lines and pipe penetrations inspected for chipped, feathered-thin or crumbling edges.

    1 photo
02

Repair and proof

  • Repairs patched flush and re-photographed

    Soft areas cut back to sound material, patched flush with the surrounding surface and photographed before floor goods cover them.

    2 photos

What usually sends this back

The failures are almost always the evidence, not the work

  • A crack skimmed with patch that reopens because the deck movement under it was never addressed.
  • A dusting area primed straight over, so the floor-goods adhesive lifts with the loose surface.
  • Damaged edges at doorways and penetrations left ragged, telegraphing through a thin resilient floor.

Run it with the Photo Gate

A checklist nobody can submit half-finished

Load this list into RTI, stick a QR tag on the area it covers, and the submit button stays locked until every mandatory item is answered and the 5 required photos exist. Approved walks roll into a branded turnover package with a tamper-evident record behind every line.

Submission state

Mandatory items answered3 of 3
Photos attached2 of 5
Submit locked, 3 photos missing

The gate is enforced on the server, so it holds even if the phone is offline when the walk happens.

Common questions

What does this gypsum concrete underlayment punch checklist cover?
3 items across 2 sections, covering defects, repair and proof. Each item spells out what the person walking the job is actually looking for, not just a box to tick.
Who should run this inspection?
The underlayment crew lead on a callback, or the GC's superintendent closing floor-prep punch before the flooring goes in.
When in the schedule should this walk happen?
During closeout before floor goods, once other trades have trafficked the underlayment and any drying cracks have shown.
Why does every item ask for a photo?
5 of the 3 items call for photo evidence. A checklist answer without the photo is a claim; the photo is what makes the record worth something in a dispute and lets a reviewer approve work without re-walking the job.
What most often fails a gypsum concrete underlayment punch inspection?
A crack skimmed with patch that reopens because the deck movement under it was never addressed. A dusting area primed straight over, so the floor-goods adhesive lifts with the loose surface. Damaged edges at doorways and penetrations left ragged, telegraphing through a thin resilient floor.
Can I use this checklist in RTI?
Yes. Start a free RTI workspace, build this list as a checklist, and the Photo Gate holds the submit button until every mandatory item is answered and its photos are attached. Approved inspections roll into a branded turnover package with a tamper-evident audit trail.