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Specification

Definition

how to choose materials for our home?

How calculate the costs for materials?

How made Foam Mortar ( Aerated Cellular Concrete) ?

 Evolution of specific consumption heat energy for buildings worming

 

Existent building

       New building

            Period of construction

Period of construction

before 1985

1985 - 1996

1996 - 2000

2000 - 2010

Global media thermal resistance of  building

0,6 - 0,7

0,9 - 0,95

1,75

2

 

Rom [ m2K/W ]

Specific necessary heat for worming

1

0,8

0,5

0,4

 

G [W/m3K]

Maximum necessary  power for worming

 

 

 

 

 

 

 

 

 

[KW/apart]

7

5,6

3,5

2,8

Annual necessary energy for worming

 

 

 

 

 

 

 

 

 

[KWh/apart]

15 750

12 600

7 875

6 300

 

 

 

 

 

 [GJ/apart]

56,70

45,36

28,35

22,68

 

 

 

 

 

 

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Usually material
Material Density, kg/m3 Heat conductivity  W / m² ?K
Marble 2700 2.9
Concrete  2400 1.3
Porous clay brick  2000 0.8
Porous clay brick with vertical holes  950 0.46
Foam concrete  1200 0.38
Foam concrete  1000 0.23
Foam concrete 800 0.18
Foam concrete 600 0.14
Foam concrete 400 0.1
Cork  100 0.03
Foamed polystyrene 25 0.03
Foamed polystyrene 35 0.022

     wall characteristic thermal efficiency calculator  

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Calculate yourself the thermal resistance ( R ) for the wall with layer thickness and thermal conductivity( K ) metric units            

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Wall and brick thermal resistance