The cement must have a clean surface to successfully adhere to.
Dryvit siding problems.
I have been applying dryvit for over 20 years successfully be sure to have an approved applicator do the work if you are going to put dryvit over wood you need to first apply a moisture barrier like stucco wrap.
And you should never attach anything to this siding that punctures the surface such as mailboxes hose holders street numbers and planter boxes.
Moisture damage is one of the biggest problems when it comes to synthetic stucco.
Something in the building envelope is usually the problem unless of course you have a burst pipe.
The contractors install the dryvit siding over plywood osb substrate or existing siding.
Always check after a windstorm as limbs may dent or pierce the siding.
The moisture problems are mostly due to a design problem.
That way if the dryvit does fail it does not destroy the substrate.
Dryvit seals out moisture.
Dryvit has an applicator problem.
There is nothing wrong with the material.
Dryvit siding works well with icf exteriors because the icf blocks have higher vulnerability to physical damage and uv radiation.
Woodpeckers can also create holes that will let water in.
Treat your home the same way your doctor treats your medical ailments.
If you have leaks in the ceiling it may be the roofing but it may also be flashing or clogged gutters.
Eifs should not contact the ground or another surface where water accumulates.