A conscientiously prepared greenhouse substrate is essential for the stability and durability of frames, wall and window elements and the roof construction. The frost-proof design supports the growth of the plants and helps to minimize heating costs in winter.

A stable base is the prerequisite for a long life of the greenhouse

Even if it is a relatively small and usually not very heavy building, the Greenhouse base stable and load-bearing and therefore requires particularly good preparation. Neither a self-assembled nor a prefabricated house may simply be placed on the ground, as it damages the stability and the plants, due to the associated leakage near the ground, as well.

A stable base ensures a long service life

While it is up to you to decide whether you want to choose a wooden, concrete or brick foundation as a solid basis for walls and roof construction when building your own, prefabricated houses usually come with a precise foundation plan, which is binding for the assembly work and must be observed got to. We have already reported on the various options that are common when building a foundation. From a structural point of view, the foundation as a greenhouse subsoil has mainly the task all horizontal and vertical forces of the superstructure. Nevertheless, it also plays an enormously important role, which will be essential for the later growth of the plants and may even relieve your wallet.

The thermal function in the greenhouse underground

Even if we have only been able to enjoy relatively short winter impressions in our climatically moderate Central European latitudes in recent years, one should never completely rule out longer and severe frost periods for the future. With normal soil structures, the frost line in the average garden would be one Soil depth between 70 to 80 cm. Anyone who carefully prepares their greenhouse substrate to these dimensions has a good chance, even without heating, that the interior will remain largely frost-free and that the possible heating costs incurred for air conditioning will remain within a tolerable range.

Preparation of the subsoil

Especially with the planned ground-level planting, the digging of a "construction pit" will certainly pay off during later use. A concrete ring foundation insulated with hard foam panels down to a depth of 70 to 80 cm ensures that the geothermal heat can rise unhindered, so that even in unheated houses there will normally not be frost on the ground. The temperature measured on the surface is in such houses even during longer periods of frost average at 3 °C.

tips

Only use hard foam panels for insulation that are moisture-resistant and root-resistant, which is not the case with styrofoam panels, for example.

Category:

Garden design