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Construction system
The Alpha System

Component id: 1170cs03
Manufacturer: Phoenix Haus
Category: Construction 
Construction type: Light (Wood) 
Window description of the system: Analysis was undertaken using Pro Passivhausfenster GmbH 'Smartwin Compact' timber-aluminum frame, featuring a SuperSpacer Tri-Seal spacer and polysulfide secondary seal. Two window installation types have been calculated, '01' refers to the standard window installation, '02' refers to the glazed door installation, with the installed U-value displayed in the 'window threshold' section. 
Airtightness description of the system: The airtightness of the construction system is achieved through the use of an airtight membrane (Intello Plus), fixed to the inside of the supporting joists and behind the service cavity. Joints are secured with specialist air tightness tape (Tescon Vana). The system also includes a wind- and waterproof membrane, fixed to the outside of the wood fiber insulation, with joints secured as above. 
Explanatory Note: - 
Climate zones: Cool, temperate
Remark: The Phoenix Haus Alpha System is a lightweight timber frame construction system, insulated with cellulose (0,040 W/mK), mineral wool (0,040 W/mK) and wood fiber (0,042 W/mK). The system uses solid timber supports for the external walls and timber I-beams for the roof construction. The system is intended to be used with a ventilated rainscreen to the exterior; steel fastenings through the exterior insulation have been taken into account in the U-value calculation by means of 3D thermal simulation. The system has been designed to meet the Passive House Institute criteria for opaque components in the cool-temperate climate zone, and is also suitable for use in the warm-temperate zone.
Certified since: Jan. 26, 2018

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