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Construction system
BEMO-Thermohalter Softdach

Component id: 1642rc03
Manufacturer: BEMO Systems GmbH
Category: Roof 
Construction type: Steel 
Window: The analysis was carried out for a Lamilux skylight: an openable glass skylight (Usk = 0.97 W / m²K with Ug = 0.71 W / m²K) based on the dimensions 1.5 x 1.5 m. It is installed using an upstand. The calculations show that the installation situations are suitable for the cool, temperate climate zone, without the risk of surface condensation and mold formation. 
Airtightness: The airtightness is achieved by the following procedure: Skylights with curbs are adapted airtight to the outer roof cladding. Inner surfaces made airtight by applying a vapor barrier to the profiled sheets (supporting shells). Components: BEMO DS 3, cold selfadhesive, fire-load-reduced vapor barrier membrane made of a reinforced aluminum composite film, accessible and penetration-proof, sd value:> 1,500 On rising components, run up to the upper edge of the insulation and fix mechanically if necessary. Absorbent substrates (connection areas) must be pretreated with a primer. Longitudinal seams are to bearranged on the top chord, transverse joints are to be underlaid. 
Illustration: The BEMO soft roof system with a standing seam made of aluminum with thermal brackets made of fiberglass-reinforced plastic (0.30 W / mK, E-Rovings Sinorma) and mineral wool insulation and a supporting shell made of steel, provides both weather protection and the requirements for thermal insulation for passive house comfort. The calculations and connection details were carried out with an EIFS for the cool, temperate climate zone (<0.15 W / m²K). Punctual penetrations are determined by 3D-FEM simulation. The system was evaluated according to the criteria of the Passive House Institute for roof systems and is considered suitable for passive house projects in the cool-temperate and warm-temperate climate zone. 
Climate zones: Cool, temperate

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