First laying deck boards on top of the existing patio without any joists to secure it from below will be free to move twist or just feel bouncy as you walk on it.
Build a low deck over concrete patio.
Building on top of the concrete slab patio is not a good idea for a few reasons.
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Layout the deck.
Check the drainage of the concrete patio.
How to build a wood deck over a concrete patio step 1.
They will run perpendicular to the decking material.
Plan the layout of your sleepers.
Or you can use the slab as the base of the deck and use wood as the top of this deck.
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You can build a raised deck over concrete base in two ways.
For a good conditioned concrete base building a raised deck is easy.
Now you are ready to deck over the low deck joist system as you would on any deck.
Lay the joists across the concrete perpendicular to the house wall at 16 inches on center.
One is to demolish your concrete patio completely and then build a wooden one as the replacement of concrete base.
Evaluate the concrete s condition.
Cracks and craters with minimal growth may still be covered without issue but be cautious if an area of your patio sinks year after year.