0001 Image showing heat flux in the ground. Approximately 50% of the ground that should be included in the model is displayed in this image. Typically the ground will be modelled to a 20m depth for accurate results. Simulated in AnTherm.
2D DETAIL HEAT FLUX - A
2D DETAIL GROUND FLUX - A A heat flux visualisation from AnTherm, showing a high resolution close up of the wall/floor junction
2D DETAIL TEMP - A
0005
0006
0007
0008
0009
00010
00011
00013
00015
00014
00017
corner close up flux
corner close up
EARTH
OPTION 1 - MODEL A Highly insulated wall and floor with insulated services cavity. The thermal analysis indicated that the linear heat loss through the corner would not meet building regulations. There is also a risk of condensation at the skirting area. If moisture was present in the wall there would be severe risk of interstitial condensation, the dew point is very close to the internal face of the wall. This is a detail often recommended by external insulation companies in Ireland.
OPTION 1 - FLUX - A Highly insulated wall and floor with insulated services cavity. The thermal analysis indicated that the linear heat loss through the corner would not meet building regulations. There is also a risk of condensation at the skirting area. If moisture was present in the wall there would be severe risk of interstitial condensation, the dew point is very close to the internal face of the wall. This is a detail often recommended by external insulation companies in Ireland.
OPTION 1 - TEMPERATURE A bright Highly insulated wall and floor with insulated services cavity. The thermal analysis indicated that the linear heat loss through the corner would not meet building regulations. There is also a risk of condensation at the skirting area. If moisture was present in the wall there would be severe risk of interstitial condensation, the dew point is very close to the internal face of the wall. This is a detail often recommended by external insulation companies in Ireland.
OPTION 1 - TEMPERATURE A Highly insulated wall and floor with insulated services cavity. The thermal analysis indicated that the linear heat loss through the corner would not meet building regulations. There is also a risk of condensation at the skirting area. If moisture was present in the wall there would be severe risk of interstitial condensation, the dew point is very close to the internal face of the wall. This is a detail often recommended by external insulation companies in Ireland.
OPTION 2 - MODEL A The insulated service cavity is removed to move the dew point towards the external face of the wall. External insulation is continued below ground level to solve the problem of thermal bridging at the corner. The thermal bridge is still present and the detail performs worse than the previous setup. This is because the thermal envelope has a larger break due to the removal of the service cavity
OPTION 2 - FLUX - A The insulated service cavity is removed to move the dew point towards the external face of the wall. External insulation is continued below ground level to solve the problem of thermal bridging at the corner. The thermal bridge is still present and the detail performs worse than the previous setup. This is because the thermal envelope has a larger break due to the removal of the service cavity
OPTION 2 - TEMPERATURE A bright The insulated service cavity is removed to move the dew point towards the external face of the wall. External insulation is continued below ground level to solve the problem of thermal bridging at the corner. The thermal bridge is still present and the detail performs worse than the previous setup. This is because the thermal envelope has a larger break due to the removal of the service cavity
OPTION 2 - TEMPERATURE A The insulated service cavity is removed to move the dew point towards the external face of the wall. External insulation is continued below ground level to solve the problem of thermal bridging at the corner. The thermal bridge is still present and the detail performs worse than the previous setup. This is because the thermal envelope has a larger break due to the removal of the service cavity
OPTION 3 - MODEL A The foundation insulation is continued on the opposite face of the rising wall and an insulating course of foamglass is introduced below DPC level. This has the effect of drastically reducing the thermal bridge. The energy performance exceeds the building regulations and could be considered sufficient in some situations. The thermal performance of this detail is at an acceptable level.
OPTION 3 - FLUX - A The foundation insulation is continued on the opposite face of the rising wall and an insulating course of foamglass is introduced below DPC level. This has the effect of drastically reducing the thermal bridge. The energy performance exceeds the building regulations and could be considered sufficient in some situations. The thermal performance of this detail is at an acceptable level.
OPTION 3 - TEMPERATURE A bright The foundation insulation is continued on the opposite face of the rising wall and an insulating course of foamglass is introduced below DPC level. This has the effect of drastically reducing the thermal bridge. The energy performance exceeds the building regulations and could be considered sufficient in some situations. The thermal performance of this detail is at an acceptable level.
OPTION 3 - TEMPERATURE A The foundation insulation is continued on the opposite face of the rising wall and an insulating course of foamglass is introduced below DPC level. This has the effect of drastically reducing the thermal bridge. The energy performance exceeds the building regulations and could be considered sufficient in some situations. The thermal performance of this detail is at an acceptable level.
OPTION 4 - MODEL A By introducing a horizontal element of perimeter insulation the most severe effects of cold penetration are diverted away from the floor slab. As a result, the floor slab insulation can be reduced by a large amount and the linear thermal bridge is reduced by a further 21%. The heat loss through the thermal bridge is now smaller than the heat loss through the floor and wall.
OPTION 4 - FLUX - A By introducing a horizontal element of perimeter insulation the most severe effects of cold penetration are diverted away from the floor slab. As a result, the floor slab insulation can be reduced by a large amount and the linear thermal bridge is reduced by a further 21%. The heat loss through the thermal bridge is now smaller than the heat loss through the floor and wall.
OPTION 4 - TEMPERATURE A By introducing a horizontal element of perimeter insulation the most severe effects of cold penetration are diverted away from the floor slab. As a result, the floor slab insulation can be reduced by a large amount and the linear thermal bridge is reduced by a further 21%. The heat loss through the thermal bridge is now smaller than the heat loss through the floor and wall.
OPTION 4B - FLUX - A
OPTION 4B - TEMPERATURE A
OPTION 4C - DETAIL - A
OPTION 4C - FLUX - A
OPTION 4C - TEMPERATURE A bright
OPTION 4C - TEMPERATURE A
SPR - T7 - Bad Detail 3D - Colour Temp - B Highly insulated wall and floor with insulated services cavity. The thermal analysis indicated that the linear heat loss through the corner would not meet building regulations. There is also a risk of condensation at the skirting area. If moisture was present in the wall there would be a severe risk of interstitial condensation, the dew point is very close to the internal face of the wall. This is a detail often recommended by external insulation companies in Ireland.
SPR - T7 - Bad Detail 3D - Colour Temp - A Highly insulated wall and floor with insulated services cavity. The thermal analysis indicated that the linear heat loss through the corner would not meet building regulations. There is also a risk of condensation at the skirting area. If moisture was present in the wall there would be a severe risk of interstitial condensation, the dew point is very close to the internal face of the wall. This is a detail often recommended by external insulation companies in Ireland.
SPR - T7 - Bad Detail 3D - Corner Weak Point - A Highly insulated wall and floor with insulated services cavity. The thermal analysis indicated that the linear heat loss through the corner would not meet building regulations. There is also a risk of condensation at the skirting area. If moisture was present in the wall there would be a severe risk of interstitial condensation, the dew point is very close to the internal face of the wall. This is a detail often recommended by external insulation companies in Ireland.
SPR - T7 - Bad Detail 3D - Heat Flux Magnified Coloured - B 3D Heat flux model of the ground floor detail using AnTherrm. A large thermal bridge is easily identified in red. The problem is intensified at the internal corner of the detail. Highly insulated wall and floor with insulated services cavity. The thermal analysis indicated that the linear heat loss through the corner would not meet building regulations. There is also a risk of condensation at the skirting area. If moisture was present in the wall there would be a severe risk of interstitial condensation, the dew point is very close to the internal face of the wall. This is a detail often recommended by external insulation companies in Ireland.
SPR - T7 - Bad Detail 3D - Heat Flux Magnified Coloured - A Highly insulated wall and floor with insulated services cavity. The thermal analysis indicated that the linear heat loss through the corner would not meet building regulations. There is also a risk of condensation at the skirting area. If moisture was present in the wall there would be a severe risk of interstitial condensation, the dew point is very close to the internal face of the wall. This is a detail often recommended by external insulation companies in Ireland.
SPR - T7 - Bad Detail 3D - Heat Flux Magnified Coloured - C Highly insulated wall and floor with insulated services cavity. The thermal analysis indicated that the linear heat loss through the corner would not meet building regulations. There is also a risk of condensation at the skirting area. If moisture was present in the wall there would be a severe risk of interstitial condensation, the dew point is very close to the internal face of the wall. This is a detail often recommended by external insulation companies in Ireland.
SPR - T7 - Good Detail 3D - Colour Temp - A By extending the external insulation to footing level, introducing a perimeter insulation course in the rising wall and introducing a horizontal element of perimeter insulation the most severe effects of cold penetration are diverted away from the floor slab. As a result, the floor slab insulation can be reduced and the linear thermal bridge is reduced to 29% of the heat lost through Detail 02
SPR - T7 - Good Detail 3D - Colour Temp - B By extending the external insulation to footing level, introducing a perimeter insulation course in the rising wall and introducing a horizontal element of perimeter insulation the most severe effects of cold penetration are diverted away from the floor slab. As a result, the floor slab insulation can be reduced and the linear thermal bridge is reduced to 29% of the heat lost through Detail 02
SPR - T7 - Good Detail 3D - Corner Weak Point - A By extending the external insulation to footing level, introducing a perimeter insulation course in the rising wall and introducing a horizontal element of perimeter insulation the most severe effects of cold penetration are diverted away from the floor slab. As a result, the floor slab insulation can be reduced and the linear thermal bridge is reduced to 29% of the heat lost through Detail 02
SPR - T7 - Good Detail 3D - Heat Flux Magnified Coloured - A By extending the external insulation to footing level, introducing a perimeter insulation course in the rising wall and introducing a horizontal element of perimeter insulation the most severe effects of cold penetration are diverted away from the floor slab. As a result, the floor slab insulation can be reduced and the linear thermal bridge is reduced to 29% of the heat lost through Detail 02
SPR - T7 - Good Detail 3D - Heat Flux Magnified Coloured - B By extending the external insulation to footing level, introducing a perimeter insulation course in the rising wall and introducing a horizontal element of perimeter insulation the most severe effects of cold penetration are diverted away from the floor slab. As a result, the floor slab insulation can be reduced and the linear thermal bridge is reduced to 29% of the heat lost through Detail 02
