Professionally install valuable natural stone slabs

Natural stone paving makes a particularly noble impression - and blend in beautifully with a green environment. Do you like natural stone slabs of porphyry, slate or granite? You can easily lay these boards yourself after instructions.

Step 1: Apply frost protection for the natural stone slabs

Raise the area to be paved approximately to the frost line to protect your precious stone slabs sufficiently: This may well mean an excavation of 80 cm in the lowlands. Create a gravel bed that you carefully compact with the vibrating machine. Include a slight incline to drain off rainwater - put up a wooden strip-attached guideline for the pavement surface.

2nd step: Clean natural stone slabs before laying

Clean the natural stone slabs as far as possible before installation so that the mortar sticks firmly to the surface.

Step 3: Pour concrete slab, apply mortar bedding

Preferably pour approximately 10 cm thick concrete slab underground for your natural stone slabs. After applying the sealing slurry, lay the stones in a special mortar made of cement, pit sand and water, which you apply about 4 cm thick. Make sure that there is a gap of a few millimeters between them and avoid the formation of voids under the panels that cause frost damage. As a cost-effective but not so perfect alternative, you can lay the natural stone slabs directly on the top layer of gravel using the mortar already mentioned.

4th step: jointing the natural stone slabs

Close the joints of your finished natural stone slabs with a mixture of trass cement and quartz sand in a ratio of 1: 3. Carefully pour the water-diluted material into the joints or fill with a thickened mass. As an alternative, a Fertigfugenmasse offers. Clean the stone surfaces with clear water as soon as the joints have dried a bit. For possible residues of the trass cement quartz sand mixture it is worth buying a cement curtain remover.

Video Board: How to install natural stone tiles.