Installing vynil siding over existing cedar plank siding.
 

I have a question about the installation of vynil siding over cedar
plank siding. I am going to be doing the siding myself and wanted to
know if it would be easier to mount a thinner plywood over the
existing siding to create a smooth surface, or if I should fill the
gaps with a furring strip?

Any suggestions.

Installing vynil siding over existing cedar plank siding.
 

TheRegit writes:

I have a question about the installation of vynil siding over cedar
plank siding. I am going to be doing the siding myself and wanted to
know if it would be easier to mount a thinner plywood over the
existing siding to create a smooth surface, or if I should fill the
gaps with a furring strip?

When they did my house they used 4x8 foot foam sheets about 1/2 inch
thick.