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

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

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

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

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 wood fibre

Insulation thickness

20 cm

Inner temperature

13 °C

Wall temperature in plaster

13 °C

17 °C
12 °C
7 °C
1 °C
13 °C
17 °C
7 °C
15 °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.