A scratch coat will give the mortar something to hold on to instead of the layer of paint over concrete.
How to install brick over concrete wall.
Wipe the back of the panels with a wet cloth.
This surface is called a scratch coat.
Brick veneer made with full size brick is laid on top of a ledge built into the concrete foundation walls or concrete footings.
Mortar cannot be installed directly over painted concrete itself.
Snap a level chalk line onto the wall 6 inches above the driveway.
It need not be soaked but a thin layer of water helps the mortar cure properly.
Add 2 inches of water to a 5 gallon bucket.
Start at the base of the wall and work your way up to the top of the wall.
Start installing the stone veneer at the wall corner.
First a surface more textured and solid must be applied over the painted concrete.
Concrete and masonry surfaces should not vary more than 1 4 in 8 feet.
This will create a inch space beneath the 6 inch wide stone veneer panels.
Applying concrete over brick can be done successfully if the proper steps are taken to prepare the bricks and the correct concrete is used during the application process.
Taking the steps required to successfully pour concrete over brick is less time consuming less physically demanding and less expensive than removing the brick before you pour.
If the walls are wet the water source must be discovered and eliminated.
Use over clean sound dimensionally stable masonry or concrete.
Painted concrete should be brush hammered or heavily sand blasted.
Pour in one quarter bag of s type veneer mortar mix designed for stone veneer.
The base of the wall must be flashed to prevent moisture from getting behind the brick.
Laying bricks over concrete is the only way to make a mortared brick wall structurally sound.
Concrete makes a serviceable patio walkway or driveway but with stones and brick you can add color and design for an aesthetically.
Once the entire structure is complete keep the joints moist for 2 or 3 days afterward.
In this video i will show you how to drill into brick concrete and cement with a drill and also how to attach fix mount or anchor into a brick concrete or.