Al wrote:
Can I install cedar shakes over T 1-11 siding? We would like to install the
shakes over the existing siding. Any hints?

There shouldn't be any problems AFAIK. You should check with both your
insance co and the local building department first. Cedar shakes are
banned outright in many places for roofs (I don't know about siding),
Many insurance companies won't insure if shakes are used.

Harry K