TABLE 1

GROSS ANNUAL HEATING & COOLING FOR THE 2,000M2 OFFICE EXPRESSED IN KWH

Climatic Zone Zone 01 Zone 02 Zone 03 Zone 04 Zone 05 Zone 06Wall Type Bloemfnt Pretoria Musina Cape Town Durban Upington

220mm SolidClay Brick

51 088 82 892 222 937 67 032 140 756 190 548

270mm Cavity (50mm)Clay Brick - Uninsulated

52 630 87 268 228 858 71 218 148 191 192 934

280mm Cavity (50mm)Clay Brick - Insulated

56 178 93 772 236 063 78 817 158 572 197 806

140mm HollowConcrete Block

45 731 85 317 225 654 69 127 143 983 191 781

Light Steel Frameto SABS 517

68 921 117 083 250 258 105 389 180 980 209 769

Timber Framewith Fibre Board

76 207 113 005 245 870 97 846 177 095 206 635