I am new to this forum so if this is posted in the wrong place...I apologize. I read and article that Tom Silva wrote in response to a readers question asking, "What's the best way to build a 2-foot-high fence on top of an existing cement-block retaining wall?" The advice that Mr. Silva gave was very good, here is the link http://www.thisoldhouse.com/toh/asktoh/question/0,,1037943,00.html
My question is what do you do if you do not have access to the cores? My block wall is flat on top I do not have access to these cores that Mr. Silva is telling us to fill with concrete. So if I take this 4X4 and place it on top of my block wall what is the best way to attach it?
What is the type of hardware I should be using? My wooden fence, once erected on the block wall, will be 3' high. I live in the southwest, albuquerque, a very dry climate and winds can get up to 45mph here a few months out of the year. I don't want to have to mess with these posts for a very long time so durability and longevity is my goal here.
Thank you all for your help.