07 21 00 Thermal Insulation: Common Contradictions and RFI Guide
Insulation R-value and vapor barrier requirements in the spec routinely conflict with energy compliance notes on architectural drawings.
Most Thermal Insulation contradictions trace to the same root: the specification and the drawings are produced by different people at different stages, and never fully reconciled before the set goes out. By the time the conflict is found in the field, it is an RFI, a delay, or a change order.
Lintel cross-references section 07 21 00 against your full drawing set, schedules, and the rest of the project manual, flagging every disagreement with a citation to the exact page so it is resolved in review.
Common contradiction types
R-value vs. energy code compliance note
A frequent thermal insulation conflict. Lintel reconciles the drawings against the spec to surface it with a page-level citation, so it is caught in review rather than at rough-in.
Vapor barrier placement conflicts
A frequent thermal insulation conflict. Lintel reconciles the drawings against the spec to surface it with a page-level citation, so it is caught in review rather than at rough-in.
Continuous insulation vs. batt spec
A frequent thermal insulation conflict. Lintel reconciles the drawings against the spec to surface it with a page-level citation, so it is caught in review rather than at rough-in.
Frequent RFIs
- R-value not meeting energy code as specified
- Vapor barrier location conflict between spec and detail
- Continuous insulation thickness not matching energy model