Material

Thermal conductivity

(j/m.s. ˚C)

Thickness

(m)

Area of surface

(m2)

Time

(s)

Outdoor temperature. T2

(˚C)

Indoor temperature. T1

(˚C)

Heat ransferred Q

(J)

Brick

0.17

0.2

10.7

36000

27

26.5

16371

Glass

0.8

0.01

8.6

36000

25.6

23.1

6192000

Stone

1.6

0.26

7.6

36000

26

25.4

109440

Gypsum

0.3

0.1

10.7

36000

24.2

23.7

57780