Coinsurance
Coinsurance requires the building to be insured to a set share of its replacement cost, usually 80–90%. Insure it for less and the carrier pays claims in that same shorted proportion. It is rarely a decision: limits get carried forward year to year while construction costs keep moving, so a building that rebuilds at $200 a square foot sits on a policy still carrying $140. An agreed value endorsement removes the penalty, and it is one of the first things we look for.







