ICC 86 SFRM Inspector flashcards

43 cards. Read the term and the definition here. The deck at the top of this page is optional.

ASTM E119

Standard fire test method for building construction and materials; establishes fire-resistance ratings for assemblies including SFRM-protected steel.

ASTM E736

Standard test method for cohesion/adhesion of sprayed fire-resistive materials applied to structural members; used to verify bond strength.

ASTM E605

Standard test methods for thickness and density of sprayed fire-resistive materials; provides sampling and measurement procedures.

UL 263

Fire test standard equivalent to ASTM E119; UL Fire Resistance Directory lists SFRM thickness and density for rated assemblies.

IBC Chapter 7

International Building Code chapter covering fire-resistance-rated construction; requires special inspection of SFRM where ratings are required.

ICC-ES evaluation report

Document issued by ICC Evaluation Service that specifies SFRM product compliance, application instructions, and inspection requirements.

Cementitious SFRM

Sprayed fire-resistive material made from gypsum or portland cement binders; typically density 15–25 pcf and applied in multiple passes.

Fibrous SFRM

Sprayed fire-resistive material made from mineral wool or slag wool fibers with a binder; density often 8–20 pcf and requires specific air pressure.

Intumescent coating

Thin-film coating that swells when heated to insulate steel; not traditional SFRM but inspected similarly for thickness and adhesion.

Endothermic reaction

Heat-absorbing chemical reaction in SFRM that slows temperature rise of steel; a key fire-resistance mechanism.

Steel temperature limit

Maximum steel temperature (often 1000°F–1300°F) for structural capacity; SFRM must keep steel below this for the required rating time.

SFRM density range

Manufacturer-specified pounds per cubic foot (pcf) for a product; must be achieved for fire resistance and cohesion; verified by ASTM E605.

Substrate preparation

Cleaning steel to remove oil, grease, dirt, loose rust, and mill scale; often per SSPC-SP 2 or SP 3 before SFRM application.

Primer compatibility

Requirement that shop primers and coatings be compatible with SFRM; incompatible primers can cause adhesion failure; verify with manufacturer.

Ambient temperature minimum

Typically 40°F (4°C) and rising during SFRM application; substrate must also be above this unless manufacturer allows otherwise.

Humidity limit

Maximum relative humidity (often 80%) during SFRM application and curing; high humidity can prevent proper drying and adhesion.

Surface dryness

Requirement that substrate be dry before SFRM application; moisture can cause blistering, delamination, or poor bond.

Masking and protection

Covering adjacent surfaces, penetrations, and equipment before spraying SFRM to prevent overspray and damage.

Spray application

Method of applying SFRM using a mixer/pump and compressed air; dry mix and water combined at nozzle; multiple passes required.

Pass thickness limit

Maximum thickness per spray pass (often 1/2 to 1 inch) to prevent sagging, poor adhesion, or density variations; follow manufacturer.

Nozzle distance

Distance from spray nozzle to substrate (typically 12–24 inches) affecting SFRM density and uniformity; maintain consistent distance.

Recoat window

Time period during which a subsequent pass of SFRM can be applied without surface preparation; specified by manufacturer.

Equipment cleaning

Regular cleaning of spray equipment to prevent hardened material from clogging lines and affecting spray pattern and density.

Penetration coverage

SFRM must continuously cover around penetrations, hangers, and supports to maintain fire-resistance; may require blocking or reinforcement.

Thickness measurement

Per ASTM E605 using depth gauge or caliper; random locations on each member; must meet or exceed specified thickness from listing.

Density measurement

Per ASTM E605 by sampling known volume of cured SFRM, weighing, and calculating pcf; must be within manufacturer's specified range.

Sampling frequency

Typical ASTM E605 frequency: one thickness measurement per 100 sq ft and one density sample per 1000 sq ft or per project.

Average vs minimum thickness

Thickness evaluation considers both average thickness and minimum individual thickness; both must meet specified criteria.

Adhesion test

Per ASTM E736; measures bond between SFRM and substrate by applying tensile load to a core sample; failure mode recorded.

Cohesion test

Per ASTM E736; measures internal strength of SFRM; failure within the material indicates cohesion failure.

Adhesion test frequency

Typically one test per 1000 sq ft or per project, and at least one per substrate type and primer; after sufficient cure.

Failure mode

In ASTM E736, failure at substrate is adhesive; failure within SFRM is cohesive; both evaluated against acceptance criteria.

Daily inspection report

Document recording date, weather, temperature, humidity, substrate condition, product, batch numbers, and application thickness.

Non-conformance report

Document describing defects, repairs, and corrective actions; must be closed out with verification and retained.

Photographic records

Before, during, and after application photos provide evidence of compliance and are valuable inspection documentation.

Final inspection report

Summary of compliance with approved fire-resistance design and manufacturer instructions; submitted to AHJ and retained.

Record retention

Inspection records must be maintained for project duration and as required by code; typically for life of building.

Common SFRM defects

Insufficient thickness, low density, poor adhesion, cracks, delamination, voids, and incomplete coverage; all require repair.

Repair procedure

Remove defective material to sound SFRM or substrate, clean, apply primer if required, reapply SFRM to specified thickness, and retest.

Delamination cause

Often due to poor surface preparation, incompatible primer, or moisture; correct root cause before repairing SFRM.

Crack evaluation

Cracks wider than hairline may indicate cohesion failure; investigate cause and repair per manufacturer instructions.

Void repair

Voids around penetrations and edges must be filled with compatible SFRM to maintain fire-resistance continuity.

Corrective action

Includes root cause analysis and preventive measures to avoid recurrence; documented and approved by AHJ.