Calculul coeficientului global de izolare termică G

1) Determinarea caracteristicilor geometrici ale cladirii:

• Aria planseului peste subsol:

A1 = A2 = (11.7 x 10.8) = 126.36 m2

• Perimertul cladirii:

P = (2 x 11.7) + (2 x 10.8) = 45 m2

• Inaltimea :

H = 5.8 m

• Aria tamplariei exterioare :

A3 = [7 x (1.8 x 1.2)] + [5 x (1.5 x 1.2)] + [2 x (1.2 x 1)] + [2 x (1.2 x 2.1)] + (0.6 x 1).

A3 = 32.16 m2

• Aria peretilor exterior :

A4 = (P x H) – A3 = (45 x 5.8) – 32.16 = 228.84 m2

• Aria anvelopei :

(A1 + A2 + A3 + A4) = (126.36 + 126.36 + 32.16 + 228.84) = 513.72 m2

• Volumul cladirii :

V = A1 x H = (126.36 x 5.8) = 732.88 m3

Detaliu Denumire

Strat Greutate

Spec. “ρ” Grosime

Strat “d” Conductivitate

Termica “λ” Reziztenta

Termica “Rs”

[Kg/m3] [m] [W/mK] [m2K/W]

Pardoseala

Calda 1)Tenc. Mortar 1800 0.02 0.93 0.21

2)B.A. Monolit 2100 0.25 1.62 0.15

3)Polistiren Extr. 30 0.03 0.04 0.75

4)Dala Mortar 1800 0.13 0.93 0.14

5)Folie Polietil. 15 0.002 0.04 0.5

6)Parchet 800 0.02 0.41 0.05

1.61

Pardoseala

Rece 1)Tenc. Mortar 1800 0.02 0.93 0.02

2)B.A. Monolit 2100 0.25 1.62 0.15

3)Polistiren Extr. 30 0.03 0.04 0.75

4)Dala Mortar 1800 0.13 0.93 0.14

5)Folie Polietil. 15 0.002 0.04 0.5

6)Gresie 1100 0.01 0.41 0.02

1.58

Perete Ext. 1)Tenc. Ext. 1800 0.02 0.93 0.02

2)Polistiren Exp. 20 0.1 0.04 2.5

3)Zid. Caramida 1650 0.3 0.8 0.38

4)Tenc. Int. 1800 0.02 0.93 0.02

2.92

Planseu

Peste Subsol 1)Pard. Mozaic 2000 0.05 1.6 0.03

2)Polistiren Extr. 30 0.1 0.04 2.5

3)Placa B.A. 2100 0.1 1.61 0.06

4)Strat Pietris 1800 0.15 0.7 0.21

5)Argila 1800

2.8

Planseu De

Sub Pod 1)Sapa Beton 2100 0.1 0.93 0.1

2)Polistiren Extr. 30 0.15 0.04 3.75

3)Placa B.A. 2100 0.25 1.62 0.15

4)Tenc. Mortar 1800 0.02 0.93 0.02

4.02

2) Rezistenta termica superficiala :

• Pentru pereti exteriori : Rsi = 1/8 = 0.125 m2K/W

Rse = 1/24 = 0.042 m2K/W

• Pentru planseu sub pod : Rsi = 1/8 = 0.125 m2K/W

Rse = 1/12 = 0.083 m2K/W

• Pentru pardoseala peste subsol : Rsi = 1/6 = 0.166 m2K/W

Rse = 1/12 = 0.083 m2K/W

• Pentru pardoseala calda : Rsi = 1/8 = 0.125 m2K/W

Rse = 1/12 = 0.083 m2K/W