Coverage for loss brought on by administration of ordinances or regulations regulating construction and fix of damaged buildings. Older structures that are damaged might need enhanced electric; heating, ventilating, and air-conditioning (HVAC); roofing products; walls; and plumbing units based on town codes. Numerous communities have a building ordinance(s) needing that a building that has been damaged to a specified degree (typically 50 %) should be demolished and rebuilt according to present building rules instead of merely fixed. Unendorsed, standard commercial home insurance types usually do not cover losing the undamaged percentage of the building, the price of demolishing that undamaged percentage of the building, and/or increased price of rebuilding the complete framework in accordance with existing building codes. But coverage of these loss exposures is accessible by endorsement. Standard property owners policies feature a provision giving a finite amount (e.g., ten percent associated with the dwelling limit) to build regulation protection; this quantity can be increased by recommendation. See additionally Ordinance or law coverage.