Wipe the back of the panels with a wet cloth.
Installing stone veneer over painted concrete block.
Use a pre blended polymer fortified type s mortar and water known as svm stone veneer mortar.
A scratch coat is a rough coat of mortar that provides a firm porous surface for the veneer to stick to.
Now the wall is ready for a layer of mortar that will adhere to the scratch coat.
Tap the stone panels to the wall with a rubber mallet.
Natural stone veneer over painted cinder block natural stone does not require mesh to adhere to another surface unlike the manufactured variety.
At best you install a firm layer of cement board over the brick then install the veneer on the cement board.
If it s any other material you ll need to install a weather resistant barrier metal lath and a scratch coat before installing manufactured stone no need to sandblast if this is the case.
Cover the lath with a scratch coat of mortar to.
If you are applying stone veneer to a painted or sealed concrete foundation attach a layer of metal lath to the concrete wall with masonry anchors.
Spread inch of mortar onto the back of the stone veneer panel and press it to the wall.
It requires a sound footing and a somewhat bondable surface as well as fasteners such as galvanized hot dip l shaped wall ties to bond the stone to the concrete.
Start installing the stone veneer at the wall corner.
If your substrate is cmu or concrete then you can sandblast it remove the residue and install stone veneer with a polymer modified mortar or thinset.
If you re using the mortar to hold on stone veneer the mortar should be scraped onto the back of the stone and then pressed into the scratch coat.
Applying stone vaneer to painted concrete block a stone veneer would be full depth 3 5 inches which would not require any change to the block.
Mix according to manufacturer s directions.
It is also recommended to work your way from the bottom to top.
Call an rcp block brick near you for available products and tips.
It is recommended to install all corner pieces first before installing the field.
The mortar that squishes out over the stone will then form the mortar joint between that stone and the next stone.