Yes you can put vinyl siding over existing wood siding assuming its condition is still good.
Installing vinyl siding over wood siding.
Generally the best idea is to remove any existing siding from your exterior walls before installing the vinyl siding.
Remember that vinyl siding expands and contracts so you can t nail it securely into place.
Since you need a firm base to install vinyl siding you first need to remove old vinyl and expose the underlying wood.
Because of expansion make sure to leave an extra of an inch 6 centimeters on each side of the panels.
Surface preparation for vinyl siding installation securely nail all loose boards and wood trim and replace any rotted boards.
Using chalk mark intervals around the house where you will install the vinyl panels.
If you do decide to cover your lap siding in vinyl you ll need to first layer the existing lap siding with highly durable foam insulation and a moisture prevention barrier.
Scrape away old caulking around windows and doors.
Vinyl also must be installed over a moisture barrier so if none exists under the wood siding the house will have to be wrapped with polyethylene or similar material.
Install the starter strip.
House wrap usually is placed.
While we recommend a full replacement vinyl siding can be installed over old wood siding but it requires an expert attention to detail knowledge of rotting wood mold and considerable preparation.
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The build up of old caulking interferes with the positioning of new trim for the siding.
Again we urge you to get a free property inspection from the best vinyl siding installers as you may even need to adjust your window door frames.
These products are designed primarily to pad imperfections on the walls so the new layer of siding will lay flatter.
This goes for fiber cement hardwood and masonite siding.
Never install vinyl siding over rotten wood.
Learn about buying vinyl siding how to prepare your house for vinyl siding and what materials to use.
The trims and all the siding have to hang somewhat loosely upon nails to enable the siding to grow and contract.