These new requirements should have been sent as a supplement update to the 2005 CA Energy Code dated January 1, 2009 (aka the 2008 CA Energy Code). I called the Energy Commission and their response is that it is not valid to use this exception in vaulted ceilings.
When you block a person, they can no longer invite you to a private message or post to your profile wall. Replies and comments they make will be collapsed/hidden by default. Finally, you'll never receive email notifications about content they create or likes they designate for your content.
Note: if you proceed, you will no longer be following .