This lightgrey sEptEm 7045 with subtle shading carries our ECO-7-size label and it is also part of our Kaliber series. In addition, it's produced according to the popular wasserstrich method. Unlike a classic Waal format which is 10 cm deep, this facing brick is 7 cm deep, which means that it leaves more room for insulation or living space.
What should you pay attention to before you start paving?
Any loose soil should be removed so that work can start on solid ground which is sufficiently water-permeable.
Depending on the substrate, a non-woven geotextile should be installed in order to prevent fine material in the sub-foundations from rising up. This is definitely recommended in the case of clayey or loamy soil.
How do you provide proper drainage?
A minimum slope of 1 to 2% is recommended. The water should always run away from the building. If the water is collected by a (slotted) gulley, then that gulley is to be cleaned out thoroughly at least once a year in order to ensure that proper drainage is maintained.
When are sub-foundations required?
It will depend on the stability, quality and compactness of the substrate as to whether or not sub-foundations need to be laid. The excavated thickness of loose soil can be backfilled with crushed stone which is compacted. So the actual foundation works will start with a solid and water-permeable sub-foundation layer in order to avoid subsequent subsidence.