A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Thermal Bridges in Extra Insulated External Walls
The effect of the thermal bridges which already exist and those which sometimes occur when additional insulation is applied to external walls is discussed. The thermal bridges dealt with here are connections between external walls and inner walls or joists, balcony slab connections, window splays and corners of external walls. The importance of thermal bridges in walls increases when the insulation of existing houses is improved by means of additional insulation of the external walls. The effect of a thermal bridge is considerable if the inside of the external walls is insulated, as the insulation is interrupted, for example, at joist connections. Internal insulation is therefore less efficient than external insulation from an energy saving point of view. The consequences which were studied are the effect on the heat losses through the external walls and the risk for condensation on the internal surfaces. The constructions which were studied were selected according to the criterion that they should be commonly used in blocks of apartments built between 1900 and 1950 and particularly during the latter part of that period. The following types of external walls were selected: (a) 38 cm brick wall, internally plastered; (b) 25 cm brick wall, internally insulated with a 50 mm wood--wool board; (c) 250 mm porous concrete wall; and (d) 150 mm concrete wall, externally insulated with 100 mm porous concrete. (ERA citation 04:016458)
Thermal Bridges in Extra Insulated External Walls
The effect of the thermal bridges which already exist and those which sometimes occur when additional insulation is applied to external walls is discussed. The thermal bridges dealt with here are connections between external walls and inner walls or joists, balcony slab connections, window splays and corners of external walls. The importance of thermal bridges in walls increases when the insulation of existing houses is improved by means of additional insulation of the external walls. The effect of a thermal bridge is considerable if the inside of the external walls is insulated, as the insulation is interrupted, for example, at joist connections. Internal insulation is therefore less efficient than external insulation from an energy saving point of view. The consequences which were studied are the effect on the heat losses through the external walls and the risk for condensation on the internal surfaces. The constructions which were studied were selected according to the criterion that they should be commonly used in blocks of apartments built between 1900 and 1950 and particularly during the latter part of that period. The following types of external walls were selected: (a) 38 cm brick wall, internally plastered; (b) 25 cm brick wall, internally insulated with a 50 mm wood--wool board; (c) 250 mm porous concrete wall; and (d) 150 mm concrete wall, externally insulated with 100 mm porous concrete. (ERA citation 04:016458)
Thermal Bridges in Extra Insulated External Walls
A. C. Andersson (author)
1978
81 pages
Report
No indication
English
Slotted steel studs to reduce thermal bridges in insulated walls
| British Library Conference Proceedings | 1998
Slotted steel studs to reduce thermal bridges in insulated walls
| Online Contents
Slotted steel studs to reduce thermal bridges in insulated walls
| Online Contents | 1998