COOL EX­TER­NAL SUR­FACES

Gadgets and Gizmos (India) - - GG TOP 40 -

When the tem­per­a­ture is soar­ing out­side, we rely on air con­di­tion­ers to cool the in­te­ri­ors. But there are sim­ple ways to re­duce the tem­per­a­ture of the home by a cou­ple of de­grees. This in­volves in­stalling shades over win­dows/doors to stop so­lar ra­di­a­tion from en­ter­ing the build­ing dur­ing sum­mers (re­move them to al­low warm­ing in win­ters). This nat­u­ral way of pre­vent­ing over­heat­ing dur­ing sum­mers and warm­ing the house in win­ters helps re­duce power con­sump­tion by ACs and heaters. Dou­ble glazed win­dows with air gaps can sub­stan­tially re­duce in­door heat­ing too. Also, heat re­flec­tive paints are ca­pa­ble or re­flect­ing 70-80 per cent of the sun’s rays. Ap­ply on the ex­ter­nal walls and the rooftop. Lastly, in­su­la­tion can be added to walls and roofs to re­duce heat trans­fer.

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