Floors and base structures

Vertical insulation of foundations or buried walls

Application I S O L Remarks
Vertical insulation of peripheral foundations or buried walls constructed on soil; internal or external insulation used with formwork or applied 2 1 3 3 DTU 20.1 and 23.1

Insulation of floor slabs laid directly on soil

Application I S O L Remarks
Insulation of floor slabs laid directly on soil for individual homes 3 1 2 2 DTU 13.3 Part 3
Insulation of floor slabs laid directly on soil for other types of building 5 1 2 2 DTU 13.3 Part 1 or 2


 Factsheet

Insulation of ground slab

Application I S O L Remarks
External peripheral insulation for base structures 3 1 3 3 Technical Assessments and Technical Application Documents
Insulation fixed mechanically to the underside floors above unheated spaces 1 1 1 2 Technical Assessments and Technical Application Documents
Insulation of floors above crawlspaces 2 1 3 3 Technical Assessments and Technical Application Documents

Insulation beneath floor screed

Application I S O L Remarks
Coatings sealed with adhesive compound applied directly to the installation and subject to operating loads of ≤ 500kg/m² 5 1 2 2 DTU 52.1 and 52.10
Coatings sealed with adhesive compound applied directly to the installation and subject to operating loads of ≤ 200kg/m² 4 1 2 2
Floor screed subject to operating loads of ≤ 500kg/m² 3 1 2 2 DTU 26.2 and 52.10
Floor screed subject to operating loads of ≤ 200kg/m² 2 1 2 2
Low-temperature water-heated floors 3 1 2 2 DTU 65.14
Electrically heated floor laid on cellular plastic insulation 4 1 2 2 Technical Assessments and Technical Application Documents
Electrically heated floor laid on mineral wool insulation 3 1 2 2 Technical Assessments and Technical Application Documents