Remove any siding or exterior finish that isn t compatible with vinyl siding and make sure the walls are sheathed with a substrate to receive the siding.
How to add vinyl siding at the bottom.
Install trim under eaves rakes.
For horizontal siding install f channel trim at the soffit and gable rake.
Then measure from the eave to the bottom of the existing siding.
1 2 inch 1 3 cm plywood or osb are common substrates and these are generally covered with roofing felt or another moisture barrier prior to siding the walls.
For vertical siding install j channel trim.
If the top is mitered miter the sides as well.
If this distance is divisible by 8 in the finished width of a piece of siding you re in luck.