Building corner thermal insulation - QuickField simulation example
Temperature fields for alternative insulation arrangements at an external building corner, comparing thermal bridging and surface temperatures near the corner.
How to calculate the reduction in thermal bridging from alternative insulation designs at an external building corner?
Answer Typical applications Geometry
Given
Task
Result
Engineering question
Compare the calculated temperature fields and dew-point isotherm for the original corner and each proposed insulation geometry.
building envelope corners, wall corner insulation zones, thermal bridge locations
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Simulation problem
Problem Type
Plane-parallel problem of heat transfer.
thermal conductivity of brickwork: 0.8 W/K-m
thermal conductivity of plaster: 0.93 W/K-m
air temperature outside: -20 °C, convection coefficient: 14 W/K-m²
air temperature inside: +20 °C, convection coefficient: 8.7 W/K-m²;
Plot temperature fields of various options for external corners thermal insulation.
Temperature distribution and dew point isotherm (10.7°C) for the initial wall corner structure (A) and for the different insulation design options:
B. Rounding the inner corner with plaster
C. Rounding the corner of a wall with bricks
D. Adding the brick layer to the outside corner surface
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