Why are most basement walls 8 thick

_ Masonry

Exterior cellar walls have to withstand particular loads. If the cellar is used, the cellar walls must also be permanently protected against moisture.

A brick cellar wall can - in connection with the usual sealing systems - be created for the following load cases:

  • Seals against soil moisture and non-accumulating seepage water DIN 18533-1: Sealing of components in contact with the ground - Part 1: Requirements, planning and execution principles; Subsection 5.1.2 W1-E - Soil moisture and non-pressing water
  • Seals against external pressing water and accumulating seepage water DIN 18533-1: Sealing of components in contact with the ground - Part 1: Requirements, planning and execution principles; Subsection 5.1.3W2-E - pressing water
Pressing water with accumulating seepage water is mostly intercepted by a white tank (waterproof concrete).

Bitumen, polymer bitumen sheeting and cold self-adhesive bitumen sealing sheeting are mainly used as sealing systems for exterior basement walls. In residential construction, plastic-modified bitumen thick coatings make up the largest proportion of sealing measures; they are considered the most cost-effective alternative.

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