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construction:quality_assurance:thermal_bridges [2017/11/17 14:15] kdreimaneconstruction:quality_assurance:thermal_bridges [2018/11/05 11:40] (current) cblagojevic
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 |{{ :picopen:abb_1a_thermal bridges_quality assurance.jpg?250 }}|{{ :picopen:abb_1b_thermal bridges_quality assurance.jpg?250 }}|**Connection of basement to external wall:**\\ the insulation has been embedded only 25cm\\ into the ground for financial reasons;\\ in addition, a frost apron has been laid\\ along the outside;\\ Ψ<sub>a</sub> = 0.134W/(mK)| |{{ :picopen:abb_1a_thermal bridges_quality assurance.jpg?250 }}|{{ :picopen:abb_1b_thermal bridges_quality assurance.jpg?250 }}|**Connection of basement to external wall:**\\ the insulation has been embedded only 25cm\\ into the ground for financial reasons;\\ in addition, a frost apron has been laid\\ along the outside;\\ Ψ<sub>a</sub> = 0.134W/(mK)|
-|{{ :picopen:abb_2a_thermal bridges_quality assurance.jpg?250 }}|{{ :picopen:abb_2b_thermal bridges_quality assurance.jpg?250 }}|**Connection of internal celler wall to \\ brickwork on the ground floor:**\\ due to the vertical continuation of the\\ basement wall insulation downwards\\ (30cm), a Ψ <sub>a</sub> of 0.30W/(mK)\\ was achieved; for walls with a thickness\\ of 38cm, this Ψ<sub>a</sub> = 0.46W/(mK)|+|{{ :picopen:abb_2a_thermal bridges_quality assurance.jpg?250 }}|{{ :picopen:abb_2b_thermal bridges_quality assurance.jpg?250 }}|**Connection of internal cellar wall to \\ brickwork on the ground floor:**\\ due to the vertical continuation of the\\ basement wall insulation downwards\\ (30cm), a Ψ <sub>a</sub> of 0.30W/(mK)\\ was achieved; for walls with a thickness\\ of 38cm, this Ψ<sub>a</sub> = 0.46W/(mK)|
 |{{ :picopen:abb_3a_thermal bridges_quality assurance.jpg?250 }}|{{ :picopen:abb_3b_thermal bridges_quality assurance.jpg?250 }}|**Knee wall:**\\ Completely insulating the knee wall\\ with a thickness of 20cm laterally\\ and 10cm above gave a\\ Ψ<sub>a</sub> = 0.056W/(mK) | |{{ :picopen:abb_3a_thermal bridges_quality assurance.jpg?250 }}|{{ :picopen:abb_3b_thermal bridges_quality assurance.jpg?250 }}|**Knee wall:**\\ Completely insulating the knee wall\\ with a thickness of 20cm laterally\\ and 10cm above gave a\\ Ψ<sub>a</sub> = 0.056W/(mK) |
 |{{ :picopen:abb_4a_thermal bridges_quality assurance.jpg?250 }}|{{ :picopen:abb_4b_thermal bridges_quality assurance.jpg?250 }}|**Windows:**\\ thermal bridges comparable to the situation\\ in a new build with Ψ<sub>a</sub> = 0.017W/(mK)\\ for the connection detail on the side;\\ the lower area of the metal window sill has\\ Ψ<sub>a</sub> = 0.030W/(mK) | |{{ :picopen:abb_4a_thermal bridges_quality assurance.jpg?250 }}|{{ :picopen:abb_4b_thermal bridges_quality assurance.jpg?250 }}|**Windows:**\\ thermal bridges comparable to the situation\\ in a new build with Ψ<sub>a</sub> = 0.017W/(mK)\\ for the connection detail on the side;\\ the lower area of the metal window sill has\\ Ψ<sub>a</sub> = 0.030W/(mK) |
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 [{{ :picopen:the_thermographic_image_shows_warm_surfaces.png?nolink400|//**Illustration 4:** The thermographic image shows warm surfaces for the glazing, frames and external wall as well as the thermal bridge at the glass edge system. The base point thermal bridge below at the transition of the external wall and basement ceiling can also be seen. (source: PHI)//}}] [{{ :picopen:the_thermographic_image_shows_warm_surfaces.png?nolink400|//**Illustration 4:** The thermographic image shows warm surfaces for the glazing, frames and external wall as well as the thermal bridge at the glass edge system. The base point thermal bridge below at the transition of the external wall and basement ceiling can also be seen. (source: PHI)//}}]
  
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 A particularly interesting aspect is the comparison of the thermographic imaging with the set values of the thermal bridge calculation. It is important that the respective boundary conditions that exist are also compared in the process. The set values of the thermal bridge calculation are compared with the measured values of the thermographic images using two examples for the building’s base.\\ A particularly interesting aspect is the comparison of the thermographic imaging with the set values of the thermal bridge calculation. It is important that the respective boundary conditions that exist are also compared in the process. The set values of the thermal bridge calculation are compared with the measured values of the thermographic images using two examples for the building’s base.\\
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 ===== See also ===== ===== See also =====
-[[construction:quality_assurance:airtightness_and_wind_proofing|]]\\ +[[construction:quality_assurance:airtightness_and_wind_proofing|]]  {{:picopen:members_only.png?25|}}\\ 
-[[construction:quality_assurance:final_approval_and_initial_use|]]\\+[[construction:quality_assurance:final_approval_and_initial_use|]]  {{:picopen:members_only.png?25|}}\\
 [[construction:quality_assurance:nuremberg_case_study|]]\\ [[construction:quality_assurance:nuremberg_case_study|]]\\
  
  
  
construction/quality_assurance/thermal_bridges.1510924523.txt.gz · Last modified: 2017/11/17 14:15 by kdreimane