Roof framing at chimney

[Ducks13]

Hi,

Could use some advise/information. I had a new roof put on my house today. Some of the rotting decking and cricket around the chimney needed to be replaced. While they put it back just like it was I don't think it is correct. As I understand it a chimney should have about a 1/2" gap to the roof so there is not a rigid connection between the roof and the chimney. This is to allow the roof to move independently of the chimney.

Here are two links I found that show construction of a cricket so there is not rigid connection to the cricket.

http://www.aconcordcarpenter.com/200...f-cricket.html

http://www.hammerzone.com/archives/r...esm/frame.html

What my roofer did was nail nailer boards to the back of the chimney and then nailed the ridge member to the nailers on the chimney and then nailed it to the roof creating the rigid connection between the roof and the chimney. The also secured the plywood to the roof and the nailer boards

My contract with the roofer says everything shall be constructed in accordance with the IRC and NRCA standards. Am I correct that there should be rigid connections between the chimney and rood and is there anything in the IRC or NRCA standards that address this so I can get it corrected without additional expense?

Also, is there a minimum slope that the cricket has to slope away from the chimney is each direction?

Thanks much for you knowledge answering my questions.
John

[Bill Robinson]

Wrong place for your question.

Please take it off line.

Maybe someone will choose to respond directly if you left any contact information.