Furring strips can be 1 by 2 inch or 1 by 4.
Covering wood siding.
Using existing siding for replacing siding the best place to start is to closely examine the existing siding to get a good understanding of what condition it is actually in.
Yes you can put vinyl siding over existing wood siding assuming its condition is still good.
If the wood siding is beveled or lapped you will need vertical furring strips 16 inches apart covered with rigid foam board to provide a flat surface.
Wood siding comes in clapboard also known as lap or bevel siding as well as shakes and shingles.
This goes for fiber cement hardwood and masonite siding.
Generally the best idea is to remove any existing siding from your exterior walls before installing the vinyl siding.
While covering lap siding with vinyl is an option for some siding other varieties of lap siding can t be covered by vinyl.
According to the best practices manual from james hardie existing siding can be used as a substrate as long as it is in good condition meaning that it is not warped.
Clapboard siding uses planks of wood installed horizontally with an upper piece that overlaps the lower piece.
Covering flat walls such as t 111 or stucco siding is usually a prime siding for re siding.