Pave a balcony

If a balcony is laid with a stone covering, these are in most cases tiles. But even paving with appropriate paving or concrete blocks is a possibility. Due to the special requirements on a balcony, however, the paving differs significantly from other surfaces.

Flooring for the balcony

Among the stone coverings for the balcony floor, ceramic and natural stone tiles are the most common. However, in addition to these conventional tiles and slabs, pavement and concrete slabs are often laid on balconies. However, this paving from the balcony is significantly different from laying tiles on a balcony.

Construction of the cantilever plate on the balcony

Paving and concrete blocks are used when drainage of the flooring is not desired. To understand this, but first a look at the balcony structure (from bottom to top):

  • Concrete slab (cantilever)
  • separating layer
  • screed
  • Sealing or drainage
  • Flooring

Slope in the screed for draining

Conventionally, a gradient of 1.5 to a maximum of 2 percent should be present in the screed layer. This ensures drainage. The separating layer between screed and concrete slab takes into account the different thermal movements of the two materials.

As protection, a drainage layer

Actually, the screed layer is now suitable for drainage. This does not mean that it is protected against moisture. But the screed on the balcony is worth protecting. Today, therefore, a polyethylene drainage (or other plastic) is laid on the screed layer.

For tiles, the drainage must be done on the surface

This ensures good drainage. But now that the slope can be compensated for the actual flooring, it must be permeable to water. Tiles are grouted and are largely impermeable to water. On a leveled floor, the water would now be on the tiles. Especially in winter with frost that could have devastating consequences.

Concrete blocks in the water and pave loose

If you pave the balcony with appropriate concrete blocks, they will be loosely laid. The water can then drain between plates. It reaches the drainage layer, from there the water then runs into the surrounding gutter and is drained.

For this, the plates are put in stock

However, chippings or gravel are not used to lay the concrete blocks in it. Instead, the plates are put in stock. The following bearings are the most common:

  • mortar camp
  • stilt bearings

Pave on mortar

The mortar bearing is nothing more than a plastic ring with a diameter of about 15 to 20 cm. These rings can be cut in half so you can lay them on the edges as well. Around the paving area a finishing profile is mounted, which has drainage openings. Then the drainage mat follows. On this mat now the bearing rings are distributed.

Then the rings are heaped up with earth-moist mortar. Heaped so you can later bring the plates into the water with the plastic mallet. Are all rings including half rings (circulating) laid and laid with mortar, the actual paving begins. The concrete blocks are now placed on the bearings and balanced.

Lay plates with stilt bearings

The stilts are narrower. They can also be set much higher than the mortar. About a mechanism, the height is set exactly. The further procedure of loose paving is otherwise the same.

Tips & Tricks

For tiles, the problem is that they should be laid with the slope, so that the balcony can be well drained. By contrast, with the loosely laid slabs, the drainage level is laid under the slabs so that they can be paved level.

Video Board: How to install paving onto insulation on a terrace