Two years after the completion of a new high school, it was determined that the window system used during construction was allowing water to infiltrate the building. Mold was discovered. Faulty installation was part of the issue. The cost to remediate the problem was shared by the General Contractor and the manufacturer of the windows. The sub-contractor who installed the windows was no longer in business. The General Contractor did not have pollution coverage for Mold and paid over $900,000.