Intumescent drying and cure in the schedule: distinguish readiness stages
Millwork is booked around restaurant columns shortly after coating. The coordinator needs the contractor's actual readiness stages and review evidence before confirming access.
Break the coating activity into the readiness stages the actual product and project require. Dry-to-touch, recoat and handling are different decisions, and any topcoat or final release has its own requirements. One product sheet lists distinct stages and makes drying dependent on temperature, humidity and thickness. A date copied from that example is not this project's cure time or permission for another trade to enter.
Keep the coating decision traceable
- Ask which readiness stages apply. Have the qualified contractor identify the current instructions for recoating, handling, topcoating, checking and relevant exposure. Include full cure where the actual system defines it. Do not invent a standard 'fully cured' milestone when the documents instead require a particular condition or assessment for an activity.
- Record the basis of each allowance. Put the product, film build, expected conditions and required checks beside the proposed duration. Ask how uncertainty will be managed. A table value under stated conditions is a basis for planning, not evidence that every member will meet the corresponding requirement at the same elapsed hour.
- Tie stages to actual locations and completion times. Separate members or areas with different application sequences. Record the last relevant coat and pending work. An overall floor finish date can conceal columns still awaiting another stage and give the millwork contractor an incorrect picture of where access may be available.
- Define what the following trade will do. Ask about contact, enclosure, attachments, dust and access needs rather than requesting only its start date. Have the coating contractor and responsible reviewers assess the proposed interaction. Working near the steel and handling it are different activities and should not share an assumed readiness decision.
- Make the confirmation visible in the look-ahead. Name the person supplying the condition evidence and the person making the applicable release decision. Keep provisional dates labelled. When conditions or film build change, obtain the revised advice and update affected activities before another trade treats the old allowance as a promise.
- Preserve the actual release scope. Record which locations and activities are permitted, with remaining restrictions or evidence identified. Continue protection and change notifications after return. A readiness decision for one activity is not final acceptance of the entire fire protection package or approval for a new attachment.
Common mistakes
- Using dry-to-touch as permission for all contact.
- Leaving quoted times without their conditions.
- Turning a limited access release into final acceptance.
Checklist
Show the readiness stages
- Applicable product and current instructions.
- Stage-specific conditions and allowances.
- Locations and actual coat completion.
- Following trade's proposed interaction.
- Required checks and named decision maker.
- Limited release and remaining restrictions.
Check your understanding
Can a published dry-to-touch time be used as the millwork start date without further review?
Show the answer
No. Identify the intended work and the actual readiness requirement for it. Use the quoted value as a conditional planning input and obtain the required evidence and release for the defined activity.
