TERRAZZO DUBAI CO. L.L.C.AL QUOZ, DUBAI, LLC

Sheet No.: 1

Project Name : DUBAI MALL - Fashion Avenue Expansion

DUBAI Cal.: C1 Rev.: 2

Customer : DUTCO BALFOUR BEATTY LLC Date 11/1/2015

Prepared by: Hareesh

Consultant: WSP Checked by: Date

Calculation of the Thermal Resistance (R-value) and Thermal Transmittance U-value for Insulated GRC Wall Panel

Elements REMARKS

1 External GRC Panel 15 0.034 0.441

2 Rockwool 225 0.037 6.08

3 Block wall 150 0.311 0.483

Total R-Value 7.01

= 7.01 m²K/W

Therefore :

U value = 1 = 1 U value = 0.143 0.2W/m²K

(Specification (As perValue = 0.2) DM AR No.66

Requirement)

Weighted Average With Above thicknessThermal transmittance 'U' value calculated is as per the requirement in the specification.

Item No.

Thickness (mm)

K-Value (W/mK)

R - Value ( m²K/W )

Existing Rock

wool(150) Added 50 Total:200

RT = RGRC + RROCKWOOL+ RBLOCKWALL

RT = 0.441 +5.41+ 0.483

W/m²K <

RT 7.01 m²K/W

.°. OK Safe ( lesser U - value is better )

0.180 W/M2K

TERRAZZO DUBAI CO. L.L.C.AL QUOZ, DUBAI, LLC

Sheet No.: 2

Project Name : DUBAI MALL - Fashion Avenue Expansion

DUBAI Cal.: C1 Rev.: 2

Customer : DUTCO BALFOUR BEATTY LLC Date 11/1/2015

Prepared by: Hareesh

Consultant: WSP Checked by: Date

Calculation of the Thermal Resistance (R-value) and Thermal Transmittance U-value for Insulated GRC Wall Panel

Elements Remarks

1 External GRC Panel 15 0.034 0.441

2 Rockwool 125 0.037 3.4

3 Concrete 400 1.300 0.31

Total R-Value 4.1

= 4.1 m²K/W

Therefore :

U value = 1 = 1 U value = 0.242 0.2W/m²K

(As perDM AR No.66Requirement)

Weighted Average With Above thickness

Item No.

Thickness (mm)

K-Value (W/mK)

R - Value ( m²K/W )

Existing Rock

wool(50) Added 50 Total:100

RT = RGRC + RROCKWOOL+ RBLOCKWALL

RT = 0.441 +2.7 + 0.31

W/m²K <

RT 4.1 m²K/W

.°. OK Safe ( lesser U - value is better )

0.180 W/M2K

TERRAZZO DUBAI CO. L.L.C.

Sheet No.: 3Project Name : DUBAI MALL - Fashion Avenue Expansion

DUBAI Cal.: C1 Rev.: 2

Customer : DUTCO BALFOUR BEATTY LLC Date 11/1/2015

Prepared by: HareeshConsultant: WSP Checked by: Date

Calculation of the Thermal Transmittance U-value for Insulated GRC Wall Panel

Thermal Resistance considering different areas in the building (Typcial)

AREA 1

Assume the highlighted column and beam concrete structure

AREA 1GRC cladded Sections Area % U value average

10.143 50.66 0.072

20.242 24.23 0.059

30.242 15.20 0.037

40.242 9.91 0.024

Average U Value for Area 1 0.192

Item No. U Value

Calculated

(Elev 3-Typ Floors)

Block Wall (9565 x 5000 - 7826000)= 39999000 mm2

Concrete Beam (9565 x 1000 x 2)= 19130000 mm2

Concrete Column (6000 x 1000 x 2)= 12000000 mm2

Concrete column stiff (9565 x 400 + 400 x 5000 x 2)= 7826000 mm2

TOTAL AREA = 30608000 + 19130000 + 12000000 + 17217000 = 78,955,000 mm2

AREA 2

Assume the highlighted column and beam concrete structure

AREA 2GRC cladded Sections Area % U value average

10.143 39.32 0.056

20.242 9.68 0.023

30.242 48.36 0.117

40.242 2.64 0.006

Average U Value for Area 2 0.203

(Elev 3-Level 3 & Level4 )

Item No. U Value

Calculated

(Elev 3 - Level 3 & Level4 )

Block Wall ( 12483 x 10300) - 8080000 = 120494900mm2

Concrete Beam (10083 x 1000 x 2) + ((6236 + 1370 + 2947) x 900) = 29663700mm2

Concrete Column (13000 x 1000) + (13000 x 1400) = 148208000 mm2

Concrete column stiff (( 5550 + 5100 +5000 + 4550) x 400) = 8080000 mm2

TOTAL AREA = 120494900 + 29663700 + 148208000 + 8080000 = 306,446,600 mm2

Assume the highlighted column and beam concrete structure

AREA 3GRC cladded Sections Area % U value average

(Elev 3 - GF) 10.143 55.09 0.079

20.242 21.61 0.052

30.242 13.56 0.033

40.242 9.74 0.024

Average U Value for Area 3 0.187

Summary based on values obtained at different areas

Considering the average values of Area 1 , Area 2 & Area 3Average Thermal transmittance U = 0.192+0.203+0.187 0.194

3

U value = 0.194 0.2W/m²K(As perDM AR No.66Requirement)

Item No. U Value

Calculated

Block Wall (9565 x 6000 - 8626000)= 48764000 mm2

Concrete Beam (9565 x 1000 x 2)= 19130000 mm2

Concrete Column (6000 x 1000 x 2)= 12000000 mm2

Concrete column stiff (9565 x 400 + 400 x 6000 x 2)= 8626000 mm2

TOTAL AREA = 48764000 + 19130000 + 12000000 + 8626000 = 88,520,000 mm2

W/m²K <

TERRAZZO DUBAI CO. L.L.C.AL QUOZ, DUBAI, LLC

Sheet No.: 4

Project Name : DUBAI MALL - Fashion Avenue Expansion

DUBAI Cal.: C1 Rev.: 2

Customer : DUTCO BALFOUR BEATTY LLC Date 11/1/2015

Prepared by:

Consultant: WSP Checked by: Date

Calculation of the Thermal Transmittance U-value for Insulated GRC Wall Panel

Total Thermal Resistance considering different areas and combining in parallel the total resistance of all possible heat flow paths through the building element.

Summary

1 7.01 W/m²K

2 4.1 W/m²K

3

7.01 + 4.1 5.555 2 2

Therefore :

U value = 1 = 1 U value = 0.180 0.2W/m²K

(As perDM AR No.66Requirement)

Upper resistance limit (Rupper)

Lower resistance limit (Rlower)

Thermal Resistance (RT) from

RT = R upper + R lower RT =

W/m²K <

RT 5.555 m²K/W

.°. OK Safe ( lesser U - value is better )