ALOA AFL common mistakes
ALOA AFL · Understand the traps and how to avoid them.
Inspecting only the door leaf - swinging it, looking at the closer and latch - and never examining the frame, hinges, or anchorage, then signing the assembly off as satisfactory.
The leaf draws the eye and usually carries the visible label. Frame problems such as bent jambs, broken welds, missing anchors, gaps at the head, or a frame set in an opening with no proper attachment are easy to overlook, and candidates tend to treat the frame as building structure rather than as part of the fire door assembly.
What to do instead
Inspect the whole assembly as a system: confirm the frame label, plumb and alignment, tight corner joints, anchorage to the wall, and that the leaf fits the frame at the intended clearances. Record any frame repair involving cutting, welding, or patching as a deficiency that requires listed components and manufacturer-approved methods.
Watching a door drift shut and recording 'self-closing and latching: yes', without pulling the leaf to full open, releasing it, and confirming the latchbolt actually engages in the strike.
A slow-closing door looks correct in a quick walkthrough, and inspectors are often pressed for time on large openings counts. A closer that has lost its spring force, a bent arm, a missing strike, or a misaligned coordinator can produce a door that closes but never latches - a failure that defeats the assembly’s purpose.
What to do instead
Open each leaf to full travel, release it, and observe the entire closing cycle. Then push and pull on the closed door to confirm positive latching. Check the closer arm and mounting, hold-open devices, strikes, and the coordinator or astragal on pairs, and test each leaf separately.
Treating a painted-over, missing, or unrecognized label as a cosmetic note, or inferring the assembly’s rating from door thickness, core type, or the hardware that happens to be installed.
Labels are commonly buried under paint, mounted on the frame hinge jamb rather than the leaf, or removed during renovation. Candidates assume a heavy solid-core door in a rated wall must be a rated assembly, and they are reluctant to write up an opening that looks serviceable.
What to do instead
Locate and read the labels on both leaf and frame, and record the rating, the listing agency, and whether each label is legible. A missing or illegible label is a deficiency: the assembly must be relabeled by a qualified labeling service or replaced. An inspector cannot certify a rating that the label does not evidence.
Accepting field modifications and hardware substitutions because the door still closes - an added peep viewer, a field-applied kickplate, extra screws or holes, a trimmed leaf, an unlisted closer, or a hold-open not connected to the fire alarm.
Many modifications are neatly done and look original, and the exam tests whether the candidate knows that only listed components installed per the manufacturer’s instructions preserve the rating. Inspectors also confuse 'it functions' with 'it is listed for a fire door'.
What to do instead
Compare the installed hardware against the label listing and the manufacturer’s field-preparation instructions. Flag any hole, cut, or device the listing does not permit. Verify that friction and electromagnetic hold-opens are listed for fire door use and release on alarm signal or power loss.
Assuming a fire door must carry the same hourly rating as the wall it sits in, or rejecting a 20-minute label as 'wrong' because the surrounding wall is rated one hour.
Opening protectives carry a fire protection rating (20, 45, 60, 90, or 180 minutes) that is frequently lower than the fire resistance rating of the assembly they protect. Candidates blur the two terms and default to 'ratings must match'.
What to do instead
Determine the required door rating from the adopted building code’s opening table using the wall type and occupancy, then compare it with the fire protection rating shown on the label. Note that certain wall types, such as fire walls, do require equal ratings, so read the table rather than applying a rule of thumb.
Answering 'which standard requires the annual fire door inspection' with NFPA 101, or citing the newest edition of NFPA 80 when the authority having jurisdiction has adopted an older one.
The documents interlock: NFPA 101 governs life safety and egress, NFPA 80 governs installation, maintenance, and inspection of fire door assemblies, and NFPA 105 addresses smoke door assemblies and other opening protectives. Candidates memorize facts without attaching each fact to its source document or edition.
What to do instead
Build a one-page scope map for the standards and codes you will be tested on, and practice citing the document and section for every rule. Before any inspection, confirm the edition adopted by the authority having jurisdiction and apply that edition consistently in the report.
Recording 'door OK' or a single pass/fail per opening, with no location, rating, deficiency detail, corrective action, or evidence that the owner was notified.
Inspections are often run as a visual walkthrough, so the report becomes a checklist of ticks. Candidates underestimate how much the documentation requirements are tested, and they do not appreciate that the record is the deliverable the authority having jurisdiction and the owner will rely on.
What to do instead
Keep one record per opening: unique identifier, location, rating, each inspection item with its result, a specific deficiency description, photographs where useful, date, inspector name and credential, written notification to the owner, and a re-inspection entry closing each deficiency. Retain records and make them available on request.
Eyeballing the gaps at the head and jambs and never measuring the undercut, so that either clearance failures are missed or normal wear is reported as a defect.
Clearances are small and hard to judge by eye, and the limits differ between steel and wood doors and between fire and smoke applications. Candidates also forget that the measurement applies with the door closed and latched, and that new floor finishes, thresholds, or sweeps can change the gap after installation.
What to do instead
Measure with feeler gauges and a rule at the head, both jambs, and between the meeting edges of pairs, and measure the undercut at the floor. Typical limits are on the order of one-eighth inch at the frame and three-quarters inch at the floor, but confirm the numbers in the adopted edition and record the readings.
Performing the inspection and then quoting or carrying out the corrective work on the same openings, or writing deficiency reports that specify only the products the inspector’s employer sells, without disclosing the relationship.
Many inspectors are employed by door, frame, and hardware companies, and the commercial pressure to convert findings into sales is real. Candidates treat this as normal business practice and do not recognize it as an independence problem the professional-practice domain tests directly.
What to do instead
Disclose any financial interest in the corrective work in writing before the inspection begins. Keep findings factual and product-neutral, describing the condition and the applicable requirement rather than a favored part number. Where the client or authority requires an independent opinion, decline the repair work or have it verified by a third party.
Writing 'assembly approved' or 'code compliant' on the report, or offering opinions on wall ratings, structural framing, or other trades outside the fire door inspector’s scope of work.
Owners want a pass/fail verdict and candidates mirror that language, forgetting that the inspector documents condition and that approval rests with the authority having jurisdiction or the registered design professional. Certification also defines a scope that a report can easily exceed.
What to do instead
Use precise language: state what was inspected, on what date, against which standard and edition, and what deficiencies were observed and what corrective action is required. State the scope and limitations of the inspection, defer approval to the authority having jurisdiction, and refer out-of-scope conditions to the appropriate professional rather than ruling on them.