Energy efficient: two magic words

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Story at a Glance

EINERGY efficiency is a powertul frlfenestration product selling tool.

Concerned with high utility bills and the environment, shoppers are looking for windows and skylights that conserve energy. Helping them select the best products for new construction, remodeling or replacement has become an important and profitable task for a retailer.

Salespeople must understand today's products are different. Options are unlimited in both appearance and energy saving perfomtance.

Window specialists should know glazing options, performance and energy efficiency. High performance, insulated glass, double and triple glaze, low-emissivity, tint, argon gasfilled air space, weatherstripping, sound transmission, R-value, U-value, air infiltration and structural performance must be in their vocabulary.

Since individual manufacturers have various terms and performance ratings, their literature and sales reps can provide specific information. However, certain basics apply to all fenestration products.

Ijo*;S,,,*r,,,,low..'ruissiviryi.'. ffi ssivityr iS::ar:fi eq$urci:Of :how,:mu$::a::glass':Surr face tr.antfers adinnt.,.[eai , tfls 1.ss qalsfend the beuer- :I-o*-emissivity Coatin8S..Uecrffi.'dtrS$itlryr....',,,,i,;,;,,, ihted:::glat#,,:,e,, hgr-flI::?4 L!!l{giS: inco d:::iilrthe::igta$$i:fd$ulting in: a degree, of tinting that reduces both visual ard rdiant transmittancC.

HC$t..$ein...=....Similtr ,transfer...of heat. from outside to inside. ,, IIfSt .loss...= .trrulSfer::of nC6i....,rio4,. inSliUC.:,.,.to ouS!.de...,.by,,,. fi eans ...o,f CQnd0Ctidil,::r:convecdon m,mUiatiO,n,,, llll..l....ll. lli:,::,!t:i:t:t:l

ShedinE....aoctnCitnt.,,,+ iatio..,of ,,,Solal..,heat..gain fi pugh:, a:.speoifi c:: gWt: ingi,..sy,slon [o the...lotalr solq4 i..heatt..gain ','tntoughe...single.;,laler...of ..,clear,' ft ubte, Sreneft i.

S,9.s',|, liii.. Thermal,.,.brCel(rr:.=.. 8n leiefient of to*.:.mnUuc;: rtiVity,::.pla0ed.:::bet$iteen a19.6x1$, o-f rrrhighei ::.aondD cti vity, ieduce .'the flo*.,.0f,,heat,,and cold,

The National Fenestration Rating Council, a national non-profit certification and rating organization, has mechanisms for rating u-value, solar heat gain and air-infiltration. NFRC labels with standardized energy ratings are being developed.

Their unifonn energy rating aims to provide dealers with "apples to apples" energy performance comparisons. They will make it easier for customers to select windows and take advantage of perks available to those who install energy efficent products. Utility company energy rebates, special mortgage progfirms and low inter- est loans for homebuyers who purchase energy saving homes arc some of the bonuses.