What does this fluid-applied air barrier rough-in checklist cover?

15 items across 4 sections, covering product and conditions, substrate condition, joint and fastener treatment, openings and penetrations. 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 applicator's foreman prepping the wall, with the GC's superintendent walking the sheathing before the membrane is applied.

When in the schedule should this walk happen?

After the sheathing is fastened and before the field coat is applied, while joints, fastener heads and transitions are still open to treat.

Why do these items ask for a photo?

11 of the 15 items call for photo evidence, 14 photos in all. 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 fluid-applied air barrier rough-in inspection?

Sheathing joints and fastener heads left untreated because the crew assumed the field coat alone would bridge them, so the membrane cracks over every gap that moves. Membrane applied over a damp or dusty substrate so it never bonds, and it peels in sheets the first time the wall is loaded by wind. Rough openings and penetrations reached last with a different detail than the field, so the weakest points get the least-considered treatment.

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.

Free checklist

Fluid-applied air barrier

Fluid-applied air barrier rough-in inspection checklist

Fluid-applied air barrier rough-in is the last time the work is fully visible. Once the cover inspection passes and the walls, ceilings and slabs close, every defect left behind becomes a demolition bill. This checklist walks the rough-in in the order the work goes in, with the photo each item needs before it gets buried. Work is commonly verified against the applicable building/energy code, manufacturer's published instructions. Confirm the edition your authority having jurisdiction has adopted.

Start free with this checklist Download as PDF

The checklist

Every item, and the photo evidence it needs

The photo count on each row is what RTI would require before the item can be submitted. Work the list here and watch the gate hold, or load it into RTI and let it enforce the real thing.

Product and conditions

Membrane pail labels match the approved submittal
Product name, type and lot on the field membrane, liquid flashing and joint fill pails at the wall match the approved submittal, with no pail past its shelf-life date.
Compatibility letter covers the materials the barrier touches
Manufacturer's compatibility letter or list on file for the sheathing, window flashing tape, sealants and the roof and below-grade membranes this barrier laps onto.
No photo
Surface temperature and dew point read before application
Surface and air temperature and dew point spread read at the wall and logged before the first pass, inside the manufacturer's range, with no rain due before its rain-ready time.
Mockup or first area reviewed before production
Mockup with an opening and a dissimilar-material transition built to the approved details, or the first coated area where no mockup is specified, reviewed and recorded before production starts.
No photo

Substrate condition

Sheathing sound, dry and clean
Sheathing fastened flat with no loose or swollen panels, surface dry and free of dust, frost or bond-breaking residue within the manufacturer's moisture and temperature range.
Substrate moisture checked by the manufacturer's method
Moisture read on sheathing, concrete or masonry at each elevation, including low courses and around openings, within the manufacturer's published limit; wet areas left to dry before coating.
Joint gaps and overdriven fasteners within the detail's limits
Sheathing gaps no wider than the joint treatment is rated to bridge, overdriven or missed fasteners re-set, broken panel edges patched before treatment starts.
Dissimilar substrate joints located along the elevation
Every change from sheathing to concrete, masonry, steel or wood blocking found and marked, so each one gets the transition the detail shows instead of field coat alone.

Joint and fastener treatment

Joints, corners and fastener heads detailed
Sheathing joints, inside and outside corners and fastener heads treated with the specified fill, tape or liquid flashing before the field coat, so nothing relies on the field coat to bridge a gap.
Transition membrane bridging dissimilar materials
Transition sheet or reinforced liquid flashing across foundation-to-wall, slab-edge and framing-to-steel joints, lapped onto each substrate the width the detail shows and rolled tight.
Primer applied or waived per the substrate list
Primer used on each substrate the manufacturer's data requires it for, at the stated open time, and the waiver noted for substrates that need none.
No photo
Joint treatment cured before the field coat goes over it
Liquid flashing and joint fill at the cure the manufacturer requires before overcoating; tape seated flat with no fishmouths or wrinkles at laps.

Openings and penetrations

Rough openings and penetrations flashed
Rough openings, pipe and conduit penetrations and deck junctions flashed with the detailed material and shingle-lapped to shed water before the field coat ties in.
Rough-opening corners reinforced before the field coat
Head, jamb and sill corners wrapped with the corner patch or preformed piece the detail shows, liquid flashing carried onto the framing return inside the opening.
Sleeves and anchor plates set before the field coat goes on
Other trades' sleeves, anchor plates and conduit through the sheathing confirmed in place with the super before application, so they aren't cut in later.
No photo

What usually sends this back

The failures are almost always the evidence, not the work

Sheathing joints and fastener heads left untreated because the crew assumed the field coat alone would bridge them, so the membrane cracks over every gap that moves.
Membrane applied over a damp or dusty substrate so it never bonds, and it peels in sheets the first time the wall is loaded by wind.
Rough openings and penetrations reached last with a different detail than the field, so the weakest points get the least-considered treatment.

Common questions

6 answers

What does this fluid-applied air barrier rough-in checklist cover?: 15 items across 4 sections, covering product and conditions, substrate condition, joint and fastener treatment, openings and penetrations. 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 applicator's foreman prepping the wall, with the GC's superintendent walking the sheathing before the membrane is applied.
When in the schedule should this walk happen?: After the sheathing is fastened and before the field coat is applied, while joints, fastener heads and transitions are still open to treat.
Why do these items ask for a photo?: 11 of the 15 items call for photo evidence, 14 photos in all. 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 fluid-applied air barrier rough-in inspection?: Sheathing joints and fastener heads left untreated because the crew assumed the field coat alone would bridge them, so the membrane cracks over every gap that moves. Membrane applied over a damp or dusty substrate so it never bonds, and it peels in sheets the first time the wall is loaded by wind. Rough openings and penetrations reached last with a different detail than the field, so the weakest points get the least-considered treatment.
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.

Related checklists

Fluid-applied air barrier Pre-coverFluid-applied air barrier pre-cover inspection checklistContinuity, thickness and transition tie-ins verified as a hold point before cladding conceals the barrier14 items12 photos Fluid-applied air barrier FinalFluid-applied air barrier final inspection checklistThe completed barrier as it performs behind the wall assembly, with penetrations added later tied back in13 items7 photos Fluid-applied air barrier PunchFluid-applied air barrier punch checklistCloseout callbacks for lifted terminations, unsealed late penetrations and damage from following trades8 items3 photos

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 14 required photos exist. Approved walks roll into a branded turnover package with a tamper evident record behind every line.