e.g. rafters (6 x 18 cm).
EnEV: U-value: 0.30 W/(m²K) (Exception: In the case of a refitting of an insulation between the rafters where the height of the rafters does not allow for a sufficient insulation.)
DIN 4108: R ≥ 1.20 (m²K)/W.
No calculation of condensate is necessary if the conditions of DIN 4108-3: 22.214.171.124 (non-ventilated roofs) are met.
Insulation on top of the Rafters:
2 x 80 mm reed insulation panels on top of the rafters, coated with clay from below and covered with sarking felt.
U-value : 0.29 W/(m²K).
Details on the Use and Application of Reed Insulation Panels as Insulation on top of the Rafters:
The information given above is based on the calculations and information of HISS REET Schilfrohrhandel GmbH and the product specifications of the manufacturer. The content is only a selection of especially important information. The author reserves the right not to be responsible for the topicality, correctness, completeness or quality of the information provided. Liability claims regarding material or ideal damage caused by the use of any information provided, including any kind of information which is incomplete or incorrect, will therefore be rejected, unless there is evidence of intentional or gross negligence on part of the author.
The information provided cannot substitute individual specialist advice by a planner.
Dipl. Ing. Stefan Neumann
Dipl. Kfm. Philip Kullmann