Passive cooling involves using non-mechanical methods like reflecting heat, blocking heat and using shade to maintain comfortable temperatures in a home. Walton EMC recommends several ways to apply passive cooling methods.

Reflecting Heat

Reflecting heat away from a house can be accomplished by using white or light colors on outside walls and installing reflective window coatings. White walls absorb less heat and help increase the life of siding. Sun control film or low-e windows can reflect incoming heat and harmful UV rays while allowing the sun to shine in.

Blocking Heat

Using insulation is an excellent method to block heat, says Walton EMC energy experts. Ceiling insulation helps protect living spaces against gaining heat from extreme temperatures found in summertime attics. Adding storm windows helps single pane windows become more efficient heat blockers.

Using Shade

Exterior and interior shades like awnings, louvers, shutters, drapes, curtains and Venetian blinds can reduce heat gain. Exterior shades are generally more effective than interior shades because they block sunlight before it enters windows. When deciding on the type and location of shading devices, consider whether you are willing to open and close them daily or simply use them during hotter months. Shading from trees and strategically placed landscaping can also provide protection from the sun. Plant on the west side of the building to block hot summer afternoon sun. Deciduous trees that lose their leaves each fall will allow sun to help warm your home during the winter.

Walton EMC is a consumer-owned cooperative providing electricity and related services to 103,000 members in ten Northeast Georgia counties.

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