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Construction system
Wood Steel Constructor

Component id: 1078cs03
Manufacturer: Wood Steel Constructor d.o.o.
Category: Construction 
Construction type: Light (Wood) 
Window: Analysis was undertaken using a generic, passive house-standard timber-framed, triple-glazed window unit, featuring "Superspacer Triseal" thermal performance values for the spacer. Felxible PUR insulation (ISO Bloco One, 0.048 W/(mK)) is used at the window installations. The calculations undertaken demonstrate that the window installation locations are suited to the cool-temperate climate zone, with no risk of surface condensation. 
Airtightness: The airtightness of the construction system is achieved through the use of an airtight membrane in the wall, roof and floor build-ups, to the inside of the structural elements. Connections are taped using specialist air tightness tape. 
Illustration: The Passive House Institute has defined international component criteria for seven climate zones based on hygiene, comfort and affordability criteria. In principle, components which have been certified for climate zones with higher requirements may also be used in climates with less stringent requirements. Their use might make economic sense in certain circumstances. 
Climate zones:
Remark: Wood Steel Constructor is a timber frame construction system. The external walls comprise solid timber studs and wood fibre insulation (Schneider Flex 50, 0.039 W/(mK); Schneider Wall 180, 0.045 W/(mK)). The walls are designed to be used with a render finishing system to the exterior; where a rainscreen is used, additional point thermal bridges may need to be taken into account in the PHPP. The pitched roof comprises solid timber beams and wood fibre insulation (Schneider Flex 50, as above; Schneider Top 180, 0.045 W/(mK)). The floor slab has been designated as an unheated basement ceiling, comprising EPS forms (0.038 W/(mK)) suspended between reinforced concrete beams, topped with poured concrete, pressure resistant wood fibre insulation (Schneider Floor 220, 0.049 W/(mK)) and cement screed. The system has undergone analysis by the Passive House Institute against the thermal performance criteria for the cool-temperate climate zone.

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