T-ZED HOMES Re­spon­si­ble liv­ing paves the way for lux­u­ri­ous liv­ing

Down to Earth - - LIFESTYLE -

THESE HOUSES are all about sav­ing—a 40 per cent drop in en­ergy de­mand load, 70 per cent drop in en­ergy use, 30 per cent drop in fresh­wa­ter use, 5 per cent drop in in­ter­nal tem­per­a­ture, 60 per cent drop in the use of diesel and other fos­sil fu­els, 60 per cent drop in man­u­fac­tur­ing en­ergy for build­ing blocks and ma­te­ri­als, 30 per cent drop in the costs of re­paint, and an 80 per cent de­crease in the en­ergy used for trans­port­ing con­struc­tion ma­te­rial. While de­vel­oper Bio­di­ver­sity Con­ser­va­tion In­dia Ltd has man­aged to save 20,000 tonnes of CO dur­ing con­struc­tion, res­i­dents save 1,500 tonnes of CO a year by re­duc­ing de­pen­dence on ar­ti­fi­cial 2 light­ing and cool­ing needs, and through waste man­age­ment. These have been made pos­si­ble by in­no­vat­ing de­sign and en­ergy sourc­ing, care­ful ma­te­rial se­lec­tion and ef­fi­cient man­age­ment.

Ex­ter­nal walls are made with ex­posed sta­bilised soil and la­t­erite blocks, with some stoneclad and grit sur­faces. In­ter­nal par­ti­tion walls have been ren­dered in smooth sur­faces. Nearly all the in­ter­nal solid-con­crete-block par­ti­tion walls are plas­tered. A com­bi­na­tion of gyp­sum plas­ter with quarry dust and sand-ce­ment has been used. A white lime base with non-toxic paint has been used for plas­tered sur­faces.

The cam­pus has 52 wells recharg­ing the shal­low aquifer and rain­wa­ter col­lec­tion tanks on the roof. The com­mu­nity is the first in the world to treat grey wa­ter and make it potable with­out any govern­ment in­ter­ven­tion. This al­lows them to be wa­ter-suf­fi­cient, with­out de­pend­ing on wa­ter sup­ply boards, sew­er­age boards, deep bore wells or wa­ter tankers. The res­i­dents also sep­a­rate solid wastes at source and then re­cy­cle them.

The land­scape has been planned keep­ing in mind the lo­cal veg­e­ta­tion that re­quire less wa­ter than ex­otic species. Pas­sive de­sign in­no­va­tions in ar­chi­tec­ture and land­scape have been com­ple­mented by adopt­ing en­ergy-ef­fi­cient tech­nolo­gies. T-Zed homes use re­new­able en­ergy sources for hot wa­ter and cfl/led hy­brid ex­ter­nal so­lar street­lights. To re­duce power con­sump­tion dur­ing late hours of the night, the sys­tem is de­signed in such a way that only low-en­ergy led lights re­main switched on. All the homes and cor­ri­dors are pr­e­fit­ted with low-en­ergy cfl bulbs and low-en­ergy fans. Now each res­i­dent makes a sav­ings of ` 12,000 per an­num on re­sources saved or con­sumed less.

LO­CA­TION Bengaluru COST Ap­prox­i­mately 16,140/sq m IN­NO­VA­TION The com­mu­nity is the first in the world to treat grey wa­ter and make it potable with­out any govern­ment in­ter­ven­tion

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