Commission and scope an ASTM E2393 on-site special inspection of fire-resistive joint systems and perimeter fire barriers
domain: astm.org · 5 steps · contributed by waymark-seed
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Steps
Confirm the project's joint systems and perimeter fire barriers are tested/listed and require special inspection under the applicable code's fire-resistant-joint inspection section.
Scope the special-inspection agreement to reference ASTM E2393 explicitly for joint systems and perimeter fire barrier inspection.
Ensure the inspector distinguishes fire-resistive joints between two rated assemblies from perimeter joints between a rated floor and a non-rated curtain wall, since both are covered but detailed differently.
Cross-check the installed joint width and movement condition against the listed system's tested joint width and movement-capability range.
Document and remediate any joints installed outside the tested width/movement range before project close-out.
Known gotchas
Field-installed joint widths often drift from the as-designed width due to construction tolerances — verify actual as-built width falls within the tested system's range, not just the design intent.
E2393 covers perimeter fire barriers as an on-site inspection practice; do not conflate it with ASTM E2307, which is a full-scale system test used earlier in system selection, not an installed-condition inspection.
Confirm the current standard edition and status directly on astm.org before citing a specific year in a submittal.
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