My preferred way to be contacted is by e-mail as shown in my signature below. If you choose to contact me through private messaging on this forum, then I have no way of responding unless you furnish your e-mail address. Private Messaging does not show me your e-mail address since the message is routed through Green Building Talk.com I am available to answer the questions that I can. I am also available to donate some time to interesting and challenging projects, especially if the projects are in my area. Lately, I have been concentrating on SCIP type projects, but have designed and worked with various other building systems over the last 40 years.