Apply a bonding adhesive over the existing patio and a thin coat of bond release agent over the stamps so they don t stick to the concrete.
Can you put stamped concrete over existing concrete.
You just have to consider the added height.
A stamped overlay offers all the aesthetic benefits of conventional stamped concrete but is applied over existing concrete.
If the new concrete is 3 inches thick or more you don t have to bond the new concrete to the old concrete.
The same principles as above apply to pouring concrete over an existing concrete driveway or sidewalk.
If done properly new concrete can often be poured right over an existing slab.
For this to be feasible the contractor needs to pour at least 2 inches thick use smaller aggregate and incorporate reinforcement such as welded wire mesh or fiber mixed into the concrete.
Overlaying is simply a matter of laying a concrete topping of only a quarter inch or so over an existing slab and stamping that new surface.
If you appreciate the functionality but want to add style to an existing concrete slab you can stamp new concrete overlay over the surface.
You can if the concrete is sound solid with minor cracks pitting scaling surface damage or just plain ugly.
Aesthetically you can end up with the same coloring and texture that mimics the look of brick stone marble or whatever texture you re after on a newly poured thicker slab.
First you pour the new concrete then you press the stamps.
My rule of thumb is this.
If the existing concrete is structurally sound is not heaving or settling then you can pour concrete over concrete.
Pouring concrete over an existing concrete driveway or sidewalk.
With some supplies and a full day of dedicated labor you can transform an otherwise plain surface.