Insurance — Homeowners — Coverage — Collapse — Insureds failed to show that loss fell within policy’s additional coverage for collapse where they did not establish that broken subfloor to shower was “abrupt falling down or caving in of building or part of building to flattened form or to rubble” — Further, insurer’s assertion that damage pre-existed policy coverage and was caused by repeated seepage or leakage of water or moisture over time was not contradicted and was, in fact, supported by insureds’ lawsuit against builder of home and deposition of insureds’ contractor — Insurer’s motion for final summary judgment is granted.