Natural Stone Thin Veneer Installation
1. When installing colonial thin stone veneer, always make sure that whatever type of surface you are covering is clean and free of debris.
2. If you are applying the veneer to an exterior surface, cover the entire surface with a moisture control barrier.
3. The MTI rainscreen is an effective drainage plane / mat to get the water out quickly. Even a small amount of water can lead to mold and rot.
4. Secure a galvanized metal lath to the surface to ensure that the lath is secured properly. Use heavy staples or galvanized roofing nails long enough to penetrate into the studs.
5. Apply a scratch coat of Type S mortar and allow mortar to set. Leave the face texture flat and yet rough in texture to assure a good grip to next adhering product.
6. Evenly spread the back of the back of the thin stone veneer with a very sticky thin set material (MasonBond 400 or equivalent). Press stone firmly into place and hold for a moment.
7. Then fill the joints with a grout bag to keep the stone clean. When joints become firm, finish to desired appearance.