Rakesh Reddy, Di­rec­tor, Aparna Con­struc­tions

Rakesh Reddy, Di­rec­tor, Aparna Con­strucɵons & Es­tates Pvt Ltd, shares details of the com­pany’s green­ing in­iɵaɵves in Aparna Sarovar Grandé at Nal­la­gandla, Hy­der­abad

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Aparna Sarovar Grandé sets a bench­mark for sus­tain­able site se­lec­tion and plan­ning that suc­cess­fully en­gages with ar­chi­tec­ture to en­hance life qual­ity and con­ti­nu­ity by max­i­miz­ing en­ergy and water con­ser­va­tion, and min­i­miz­ing waste and heat gen­er­a­tion.

The over­all project de­sign de­picts high-per­form­ing ar­chi­tec­tural, me­chan­i­cal and elec­tri­cal de­sign el­e­ments. It fea­tures ef­fi­cient en­ergy con­ser­va­tion mea­sures like in­su­lated roof, high-per­for­mance glaz­ing, and re­duc­tion in LPD (light­ing power den­sity) of 30% from base­line, along with light­ing con­trols that re­sult in av­er­age en­ergy cost sav­ings of upto 16% from base­line build­ing.

Use of high-grade Pilk­ing­ton Glass en­sures bet­ter nat­u­ral light, noise con­trol, ther­mal in­su­la­tion, and fire pro­tec­tion, with­out com­pro­mis­ing on strength and sta­bil­ity of the build­ing. It keeps the indoors cool in sum­mer, warm in win­ter, and re­duces monthly en­ergy costs.

The glass, as well as the in­su­la­tion of the ter­race with a low U-value ma­te­rial, re­duces heat trans­fer into the build­ing. So­lar cells gen­er­ate 2.5 per­cent of the elec­tric­ity used in the project, and 1 per­cent of the con­struc­tion ma­te­ri­als are from sal­vaged sources. Be­sides this, in­door en­vi­ron­ment qual­ity is main­tained with 80% of all reg­u­larly oc­cu­pied spa­ces hav­ing an open­ing to the out­doors. Fresh air ven­ti­la­tion has been de­signed for liv­ing spa­ces, kitchen and bath­rooms.

Mother Earth was pre­served in 15% of site area by re­strict­ing the ex­tent of the cel­lar. Dur­ing ex­ca­va­tion, all the top soil was pre­served as a mound in the ad­ja­cent site, to be later used in land­scap­ing, ow­ing to its high fer­til­ity. 95% of con­struc­tion waste gen­er­ated has been di­verted from dis­posal in land­fills. More than 75% woods used in the project are rapidly re­new­able & FSC cer­ti­fied wood. Ex­ca­va­tion and fill­ing were min­i­mized by opt­ing for a Stepped Podium con­cept, where half of the blocks were de­signed on a raised podium, which gives stilt-like ac­cess to park­ing be­neath, with­out the need for ramps.

Land­scap­ing has been done with des­ig­nated spa­ces for util­i­ties and pro­vi­sion of on-site fa­cil­i­ties. Plants and trees have been care­fully se­lected to suit the lo­cal en­vi­ron­ment and the turf area has been re­duced to less than 20% of the to­tal land­scape since it re­quires water for main­te­nance. The project land­scape has been de­signed keep­ing in mind the site con­di­tions and the need to pre­serve the bio­di­ver­sity of the re­gion, and a thou­sand species of flora have been planted.

By treat­ing and reusing on-site waste water for land­scap­ing etc, there will be re­duced con­sump­tion of potable water. So­lar en­ergy sys­tems have been in­stalled for out­door light­ing and for other pur­poses. Sep­a­rate bins for seg­re­ga­tion of waste & cen­tral­ized waste col­lec­tion in each floor. 100% of rain­fall flow is been har­vested.

We ex­plained to ev­ery oc­cu­pant the ad­van­tages, fea­tures and ex­pec­ta­tions of a green build­ing and ed­u­cated them how to prop­erly main­tain and uti­lize the en­ergy con­ser­va­tion fea­tures.

Aparna Sarovar Grandé is a Green­field hous­ing project that sym­bol­izes how a lux­u­ri­ous life­style can pros­per more within an en­vi­ron­ment­friendly one

Built up area: 1,49,138 sq.mt Ar­chi­tects: Ge­n­e­sis Plan­ners Green Con­struc­tion Con­sul­tants: Con­serve Con­sul­tants Con­struc­tion: Aparna Con­struc­tion & Es­tate Type of cer­ti­fi­ca­tion: IGBC Green Homes Ver­sion 2.0 Plat­inum rat­ing with 81 points Site Se­lec­tion & Plan­ning: 17 points Water Ef­fi­ciency: 18 points En­ergy Ef­fi­ciency: 14 points Ma­te­ri­als & Re­sources: 16 points In­door En­vi­ron­men­tal Qual­ity: 11 points In­no­va­tion & De­sign Process: 5 points

Green Highlights

• Low VOC paints, ad­he­sives and sealants used to

min­i­mize air con­tam­i­na­tion. • Con­struc­tion ma­te­ri­als like steel, glass, ce­ment, sand, etc., used were man­u­fac­tured within 400 km dis­tance from project site, thus re­duc­ing fuel con­sump­tion and car­bon foot­print. • FSC cer­ti­fied wooden door frames and shut­ters. • Water-ef­fi­cient plumb­ing fixtures with flow rates lower from the base line in­stalled, re­duce water con­sump­tion up to 50.4%. • On-site sewage treat­ment plant for treat­ing waste water gen­er­ated to re­use for flush­ing and land­scap­ing. In­stalled Roof Assem­bly U val­ues or the heat loss value is well-con­trolled from re­tain­ing heat and trans­mit­ting it to the apart­ments. This main­tains a bal­ance in the heat gained. So­lar-e Blue-green glass with low U Value from Pilk­ing­ton for win­dows re­duces heat ingress into res­i­den­tial units. En­ergy ef­fi­cient elec­tri­cal fixtures and park­ing garage ex­haust sys­tems Timer con­trols in dis­tri­bu­tion box for non-emer­gency ex­te­rior and com­mon area light­ing. Pro­fes­sion­ally planned land­scap­ing for avoid­ing ‘heat is­land’ ef­fect. 96% of non-roof im­per­vi­ous area cov­ered with grass pavers and shaded by trees. • China mo­saic tiles and veg­e­ta­tion on roofs. • Hy­brid DG sets that run on bio­fuel re­duce emis­sion of green­house gases and de­pen­dency on ex­pen­sive fos­sil fuel. • On-site re­new­able en­ergy sys­tems to off­set build­ing en­ergy costs. • BEE 4-star rated pumps & mo­tors and group con­trols in lift. • So­lar PV panel sys­tems (off-grid) with a ca­pac­ity of 140 KW in­stalled on roof of ev­ery tower. • Cen­tral shut-off valves, drip ir­ri­ga­tion for land­scape plant­ing beds, mois­ture sen­sor con­trollers, and pres­sure reg­u­lat­ing de­vices for water con­ser­va­tion. • The Build­ing En­ve­lope uses ma­te­ri­als for lesser en­ergy con­sump­tion and re­duced ad­verse health im­pact on oc­cu­pants. The roof has over deck in­su­la­tion and China mo­saic tiles, glaz­ing, ce­ment with fly ash con­tent, CC blocks with re­cy­cled con­tent, vit­ri­fied tiles, FSC cer­ti­fied wood, low VOC paints, sealants and ad­he­sives.

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