Description:320 sf one story frame on crawl family room addition.shall comply to 2007 krc rafter span r802.5; floor joist span r502.3;chapter 10 fireplaces and chimneys, girder spans r502.5 footings r403 stairs r311.5 handrail r311.5.6, guards r312, ceiling joist span r802.4; smoke alarms r313; energy efficiency chapter 11. a permanent energy efficiency certificate completed by the builder or registered design professional showing r-values in zone 4, shall be posted on or in the electrical distribution panel. shall provide written window installation instructions provided by the window manufacturer per r613.1 to be delivered to the field inspector .has neighborhood agency approval.-cc