The wood is not sitting in a moist or wet condition so it is not wicking moisture.
Hpatio how far belwo siding.
Aluminum or fiberglass groundbreaker flashing is placed just up under the bottom of the trimmed siding and extends below the last wood element on the home the sill plate.
I opted for 3 1 2 in.
From the top of the decking to the bottom of the patio door threshold.
The bottom of the starter strip the part the bottom panel hooks on to should be at least 1 in.
This allows the patio to be constructed 1 2 away from the sheathing giving an air gap that will allow moisture to drain and evaporate.
That would vary with the installation but siding should pretty much never finish at the patio surface there should always be a gap and that will vary from 2 6 depending on the type of patio materials.
There s no magic number but i would recommend a minimum of 2 in.
Many doors have a sill or threshold that needs to be supported so don t forget to install a kick plate under the door.
All hardscape within 10 feet of a building must slope away from the building with a minimum slope of 2 percent.
Six inches would not be too far.
Moisture could build up and leak its way into your indoor flooring or between and under the siding inviting bigger problems.
It protects the sheathing from rain snow and pests.
The further the better.
That means that the patio must slope away from your house at least 1 4 inch per foot for at least the first 10 feet from the house exterior.
When it is higher from the ground splashing water onto the wood is minimized.
Wood siding should be 4 or so from the ground whether that be soil or solid surface.