Knee wall

As a knee wall (or jamb or Trempel ) refers to the. At the eaves of a house on the bare floor of the attic addition brick exterior wall on which rests the roof structure The higher the knee wall, the more floor space under the sloping roof available. In Bavaria was or knee wall on the long side runs frequently unrendered in wood. Since there is no legal definition of Drempelhöhe exist, it needs further provisions as shall be measured. It is generally accepted that the knee wall starts from the top of the bare floor of the attic. For the end of the toggle stick there is no uniform use of the term. In the largest extension of the knee floor that extends to the imaginary point of intersection of the outer wall to the upper edge of the rafters. The smallest definition exists when under the knee wall only the wall is understood beyond the attic ceiling (excluding eaves purlin ). Between these possibilities further methods of measurement are used. Often a maximum Drempelhöhe is determined to creatively subordinate to the attic on the lower floors in the development plan.

Harmonization in Switzerland

In the inter-cantonal agreement on the harmonization of Baubegriffe the measuring points for the knee wall in section 5.3 are regulated. But there are also different rules possible, provided that they are properly documented.