Case
Winter cold.
How a heating break effects the room temperature
In all 10 houses we simulated a heating break of two days. The initial interior temperature was 21 °C, the outer temperature was -12 °C.
We recorded interesting results: after 2 days, in non-insulated house the wall temperature was 1 °C and the interior temperature was 4 °C.
Insulated houses with massive walls kept the both – the wall and interior temperatures between 15 °C and 17 °C.
House No. 1
Wall material
Concrete
Mass of wall material (kg/m2)
475
Insulation
Resolution XS 022
Insulation thickness
14 cm
Inner temperature
17 °C
Wall temperature in plaster
17 °C
House No. 2
Wall material
Concrete
Mass of wall material (kg/m2)
475
Insulation
openTherm reflect
Insulation thickness
20 cm
Inner temperature
17 °C
Wall temperature in plaster
17 °C
House No. 3
Wall material
25 cm brick
Mass of wall material (kg/m2)
245
Insulation
-
Insulation thickness
-
Inner temperature
4 °C
Wall temperature in plaster
1 °C
House No. 4
Wall material
25 cm brick
Mass of wall material (kg/m2)
245
Insulation
openTherm reflect
Insulation thickness
18 cm
Inner temperature
15 °C
Wall temperature in plaster
15 °C
House No. 6
Wall material
Wooden frame construction
Mass of wall material (kg/m2)
60
Insulation
StarTherm
Insulation thickness
6 cm
Inner temperature
11 °C
Wall temperature in plaster
7 °C
House No. 7
Wall material
Wooden frame construction
Mass of wall material (kg/m2)
60
Insulation
StarTherm
Insulation thickness
6 cm
Inner temperature
11 °C
Wall temperature in plaster
7 °C
House No. 9
Wall material
50 cm brick filled with mineral wool
Mass of wall material (kg/m2)
347
Insulation
-
Insulation thickness
-
Inner temperature
13 °C
Wall temperature in plaster
12 °C
House No. 10
Wall material
Massive wood
Mass of wall material (kg/m2)
155
Insulation
Pavatex wooden fibre
Insulation thickness
20 cm
Inner temperature
13 °C
Wall temperature in plaster
13 °C
Thermal insulation saves energy costs:
The measurement between December 2015 and January 2016 showed that for keeping the pleasant 21 °C interior temperature the insulated houses (U=0,15) needed only 40% of energy in comparison to non-insulated house.