Support for the $format Query Option. The OData protocol supports both JavaScript Notation (JSON) and Atom feeds, and OData provides the $format system query option to allow a client to request the format of the response feed. This system query option, if supported by the data service, must override the value of the Accept header of the request. WCF Data Services supports returning both JSON and Atom feeds. However, the default implementation does not support the $format query option and uses only the value of the Accept header to determine the format of the response.
1 According to RD.com, the average safe room costs $2,000 to $5,000 to build. 2  FEMA.gov claims that the average safe room can cost anywhere from $6,600 to as much as $14,300.3  The size of the safe room will be the largest determining factor in the price. If you need to have a safe room installed by the professionals, consider getting multiple quotes from contractors in your area on websites like HomeAdvisor.com. 2  For example, a 8-by-8-foot room can cost $9,000, while a 14-by-14-foot room can cost around $15,000.
Panic Safe Rooms. The type of home safe room known as a panic room can be quite a bit more expensive than tornado safe rooms. Remodeling costs to add a panic room to an existing home can run as much as $40,000 to $60,000.Top-line panic rooms may be protected by bullet-resistant Kevlar and have dedicated phone lines, backup generators and other security features.uality built tornado safe rooms are also affordable at between $4,000 and $5,000 and return as much as 84 percent of investment. The type of home safe room known as a panic room can be quite a bit more expensive than tornado safe rooms.