A contractor prepares a concrete materials submittal that includes cementitious materials and aggregates, curing materials, floor and slab treatments, reinforcement accessories, an air-entraining admixture, and a floor sealer that is a substitution for the specified sealer. The architect approves the submittal without exception.
During installation of the tile flooring, it is discovered that the specified floor tile adhesive is incompatible with the substituted floor sealer. A compatible adhesive is ordered, which requires extra time to deliver, and the general contractor submits a claim for a time extension and the extra costs.
How should this claim be resolved?