Kungani I-U-Values ​​Ibalulekile Ekusebenzeni Kwamandla Ewindi

Amawindi adlala indima enkulu kakhulu ekusebenzeni kwamandla kwekhaya lakho kunalokho abantu abaningi abakuqaphelayo. Ngokuvamile ziyisixhumanisi esibuthakathaka emvilophini eshisayo yesakhiwo, umgoqo ongabonakali phakathi kwendawo yakho ethokomele yasendlini nezinto ezingaphandle.

Nakuba sivamise ukuqaphela okusalungiswa noma ukufiphala lapho okuthile kungasahambi kahle, kukhona into ethulile esebenza ngemva kwezigcawu enquma ukuthi amawindi akho akuphatha kahle kangakanani ukushisa: inani le-U. Le nombolo eyodwa ithonya ukunethezeka kwakho, izikweletu zakho zanyanga zonke zamandla, kanye nokusimama kwesakhiwo sakho ngokuhamba kwesikhathi.

Kungakhathaliseki ukuthi uvuselela, wakhela kusukela ekuqaleni, noma umane uthengela amawindi okushintsha, ukuqonda amanani e-U kungakusiza wenze izinqumo ezihlakaniphile ezizokhokha iminyaka eminingi ezayo.

Iyini I-U-Value? 

Emgogodleni wayo, inani le-U likala ukuthi ukushisa kudlula kalula kanjani ezintweni noma inhlanganisela—kulokhu, iwindi. Ivezwa njengenombolo, ngokuvamile isukela ku-0.2 kuye ku-1.5 noma ngaphezulu kumawindi.

Umthetho olula: Lapho liphansi inani le-U, iwindi liba ngcono ekugcineni ukushisa lapho kufanele khona. Iwindi elinenani elingu-U elingu-0.8 livumela ukudluliswa kokushisa okuncane kunelilodwa elilinganiselwe kokuthi 1.4.

Cabanga ngalokhu: i-thermos ene-insulation ewugqinsi igcina ikhofi lakho lishisa amahora amaningi ngoba ukushisa kuphuma kancane. Inkomishi yepulasitiki encane? Isiphuzo sakho sibanda ngokushesha. Amawindi asebenza ngendlela efanayo—amanani e-U aphansi asho ukunyakaza kokushisa okunensa, noma ngabe uzama ukugcina imfudumalo ngaphakathi ebusika noma ngaphandle ehlobo.

Kubalulekile ukuqaphela ukuthi inani le-U alikona nje ingilazi. Iyunithi yonke yefasitela—uhlaka, ukucwebezela, ama-spacers, nama-seal—inikela esilinganisweni sisonke. Kungakho amawindi amabili anengilazi efanayo angaba nama-U-values ​​ahluke kakhulu kuye ngokuthi akhiwe kanjani.

Amanani aphansi aqhathaniswa nama-U aphezulu

Uma uqhathanisa amawindi, uzoqaphela ukuthi amanye ane-U-values ​​ephansi kanti amanye aphakeme. Amanani e-U aphansi asho ukuthi iwindi lingcono ekumiseni ukushisa ukuthi kungahambi. Lokhu kukusiza ukuthi ugcine ikhaya lakho linethezekile futhi ukonge imali ezindlekweni zamandla. Amawindi anamanani e-U aphansi asebenza kahle ezindaweni ezibandayo nezishisayo. Avimbela ukulahlekelwa ukushisa ebusika futhi avimbele ukwanda kokushisa ehlobo. Uma ukhetha amawindi anamanani e-U aphezulu, ukushisa okwengeziwe kuzodlula, okungenza amagumbi akho azizwe emoshekile noma efudumele kakhulu.

Nali ithebula elilula ukukusiza uqonde umehluko:

Amanani e-U aphansi asho ukuphuma okuncane kokushisa, okubalulekile ekusebenzeni kahle kwamandla. Uzoqaphela izinzuzo ekunethezekeni kwakho kanye nezikweletu zakho zanyanga zonke.

Kungani I-U-Values ​​Ibalulekile Ekuphileni Kwangempela (Hhayi KumaSpredishithi Akhethekile)

Amazinga Okushisa Angaphakathi Anethezeke Kakhudlwana

Wake wahlala eduze kwefasitela ngosuku olubandayo futhi wezwa ukubanda okuhlukile, ngisho noma kuvuliwe? Lokho ukulahlekelwa ukushisa okukhazimulayo emsebenzini. Amafasitela anamanani e-U ampofu avumela ukushisa komzimba wakho ukuthi kukhanye endaweni yengilazi ebandayo, okwenza isikhala esiseduze kwawo singakhululeki.

Amanani we-U angcono anciphisa lo mphumela. Amagumbi ahlala eshisa ngokulinganayo, amakhaza ayancipha, futhi ungasebenzisa leyo ndawo yokufunda ethokomele ngefasitela unyaka wonke. Ehlobo, isimiso esifanayo siyasebenza—amafasitela anokusebenza okushisayo okuqinile asiza ukugcina izindawo zangaphakathi zipholile ngaphandle kokusebenza ngokweqile kwesimo somoya wakho.

Izindleko Zokushisisa Nezokupholisa Eziphansi

Izikweletu zamandla zinqwabelana inyanga nenyanga, futhi amafasitela avame ukubophezeleka ku-25-30% wokushisa kwendawo yokuhlala nokusetshenziswa kwamandla okupholisa. Amawindi anamanani aphezulu e-U asebenza njengezisefo ezishisayo, avumela umoya opholile uphume futhi aphoqelele isistimu yakho ye-HVAC ukuthi isebenze kanzima.

Ukuthuthukela kumafasitela anamanani e-U angcono akukhona nje izindleko zangaphambili—kuwutshalomali olunciphisa izindleko zokusebenza phakathi nokuphila kwesakhiwo. Ezimweni eziningi, ukonga amandla kungangeza amanani abalulekile phakathi neminyaka embalwa nje.

Ukusebenza Okungaguquguquki Kuso sonke Isakhiwo

Emakhaya amakhulu noma ezakhiweni zezentengiselwano, iwindi elilodwa elingasebenzi kahle lingadala ukungakhululeki kwasendaweni futhi lilahle ibhalansi yesistimu yakho yokushisisa nokupholisa. Uma amafasitela egumbi lokuphumula esebenza kahle kodwa amafasitela ekamelo lokulala awekho, uzobona amazinga okushisa angalingani kanye nokusetshenziswa kwamandla okunamandla.

Ukucacisa amanani e-U afanayo kuwo wonke amafasitela kusiza ukugcina izimo zasendlini ezingaguquki esakhiweni sonke—into ebalulekile ikakhulukazi kubakhi, abathuthukisi, nabaphathi bezakhiwo abengamele amayunithi amaningi noma amaphrojekthi amakhulu.

Izimo Lapho I-U-Values ​​Ibaluleke Kakhulu

Izimo Zezulu Ezibandayo Nezixubile

Uzwa imiphumela ye-U-values ​​kakhulu ezindaweni ezibandayo nezixubile. Kulezi zindawo, amawindi anamanani e-U aphansi asiza ukugcina ukushisa ngaphakathi kwekhaya lakho. Lokhu kusho ukuthi uhlala ufudumele ebusika futhi usebenzise amandla amancane ukufudumeza. Amakhodi wokwakha ezindaweni ezibandayo ngokuvamile adinga amawindi ane-U-factors engu-0.30 noma ngaphansi. Ungabona ukuthi lezi zidingo zishintsha kanjani ngokwendawo yesimo sezulu kuthebula elingezansi:

Uma uhlala endaweni exubile, uyazuza futhi ngamafasitela anamanani aphansi we-U. Lawa mawindi asiza ukulinganisa izinga lokushisa lasendlini phakathi nezinkathi ezishisayo nezibandayo.

Izifunda ezishisayo nezinelanga

Ezifundeni ezishisayo nezinelanga, ufuna ukugcina umoya opholile ngaphakathi futhi uvimbele ukushisa elangeni. Amawindi anamanani aphansi e-U ahlinzeka ngokufakwa okungcono, okusiza ikhaya lakho lihlale lipholile. Lokhu kunciphisa isidingo se-air conditioning futhi kwehlisa izikweletu zakho zamandla. Kufanele futhi ubheke amawindi ane-Solar Heat Gain Coefficient ephansi (SHGC), ngokufanelekile ngaphansi kuka-0.25. Le nhlanganisela ivimba ukushisa okungafuneki futhi igcina indawo yakho inethezekile, ngisho nangezinsuku ezishisa kakhulu.

Ithiphu Ewusizo: Ukukhetha amawindi anakho kokubili amanani aphansi e-U kanye ne-SHGC ephansi kungenza umehluko omkhulu ekunethezekeni kwakho nokonga amandla.

Iwindi Lezindawo Ezinkulu

Uma ikhaya lakho linamafasitela amakhulu noma izindonga zezingilazi, amanani e-U abaluleke kakhulu. Amafasitela amakhulu avumela ukukhanya kwemvelo okuningi, kodwa futhi avumela ukushisa okwengeziwe ukuthi kungene kuphume. Nakhu okudingeka ukwazi:

• Amawindi amakhulu andisa ukushintshana kokushisa ngaphandle.

• Uthola ukukhanya kwelanga okwengeziwe, okunganciphisa izindleko zokukhanyisa.

• Ungabona izikweletu eziphakeme zokushisisa ebusika kanye nezindleko zokupholisa eziphakeme ehlobo.

• Idizayini ecophelelayo nokukhetha okufanele kwewindi kukusiza ukuthi ujabulele ukubuka ngaphandle kokumosha amandla.

Uma unaka ama-U-values, uqinisekisa ukuthi amafasitela akho amakhulu angeza ubuhle nokukhanya ngaphandle kokubangela izindleko eziphezulu zamandla.

Indlela Ama-U-Values ​​Asebenza Ngayo Nezinye Izici Zewindi

Uma uthenga amawindi awonga amandla , uzobona izinombolo ezimbalwa kulebula. I-U-value ibalulekile, kodwa akuyona ukuphela kwemethrikhi okufanele uyazi. Amanye amagama abalulekile amabili yi-SHGC kanye ne-R-value. Ngayinye ikutshela okuthile okuhlukile mayelana nendlela iwindi elisebenza ngayo.

U-Values ​​vs SHGC

Inani lika-U likala ukuthi iwindi likugcina kahle kangakanani ukushisa ukuthi kungadluli. I-SHGC, noma i-Solar Heat Gain Coefficient, ibonisa ukuthi kungakanani ukushisa kwelanga okungena ngengilazi. Udinga ukubheka izinombolo zombili ukuze ukhethe iwindi elingcono kakhulu lesimo sezulu sakho.

Nali ithebula elilula ukukusiza uqhathanise:

Ithiphu: Ezimweni ezibandayo, ungase ufune iwindi elinenani eliphansi le-U kanye ne-SHGC ephezulu. Ezimweni ezishisayo, bheka kokubili inani eliphansi le-U kanye ne-SHGC ephansi.

Amanani we-U vs R-Value

Ungase futhi ubone inani le-R uma uqhathanisa imikhiqizo yokuhlanganisa. Inani lika-R kanye nenani le-U kuxhunyiwe, kodwa akufani. I-R-value ikutshela ukuthi into imelana kahle kangakanani nokugeleza kokushisa. Inani le-U libonisa ukuthi ukushisa kuhamba ngokushesha kangakanani. Nazi izinto ezimbalwa ezibalulekile okufanele uzazi mayelana nobudlelwano phakathi kwabo bobabili:

• Inani lika-U liwukubuyelana kwenani lika-R.

• Ukuthola inani le-U: U = 1/R.

• Ukuze uthole inani elingu-R: R = 1/U.

Nasi isithenjwa esisheshayo:

Uma ubheka kokubili inani le-R kanye ne-U-value, uthola isithombe esigcwele sokuthi amafasitela akho nezindonga kuligcina kanjani ikhaya lakho linethezekile. I-R-value ijwayelekile ezindongeni nophahla. I-U-value ijwayelekile kumawindi nezicabha. Ndawonye, ​​lezi zinombolo zikusiza ukuthi ukhethe imikhiqizo engcono kakhulu yokonga amandla nokunethezeka.

Khumbula, ayikho inombolo eyodwa exoxa yonke indaba. Njalo hlola inani le-U, i-SHGC, kanye nenani elingu-R ukuze wenze ukukhetha okuhlakaniphe kakhulu kwekhaya lakho.

Ungenza ikhaya lakho libe ntofontofo futhi wonge imali ngokukhetha amawindi ane-U-Values ​​efanele. Lezi zinombolo zibonisa ukuthi amawindi akho amisa kahle kangakanani ukulahlekelwa ukushisa futhi akusize ehlise izikweletu zakho zamandla. Sebenzisa ithebula elingezansi ukuze ukhumbule okubaluleke kakhulu:

Uma uthenga amawindi, hlola i-U-Values ​​ukuze uthole ukunethezeka okungcono kakhulu nokonga.

Yeka I-U-Value 'Enhle' ebukeka ngayo

Alikho inani le-U elilodwa elilungele yonke iphrojekthi. Okubalulekile 'njengokuhle' kuncike esimweni sakho sezulu, uhlobo lwesakhiwo, namakhodi endawo wamandla.

I-U-Value Ejwayelekile

• Amawindi okuhlala: Amanani e-U ngokuvamile asukela ku-0.25 kuya ku-1.2. Ezindaweni ezibandayo, ukuhlosisa u-0.30 noma ngaphansi kuvamile ezindlini ezisebenza kahle kakhulu.

• Amafasitela ezohwebo: Izidingo ziyahlukahluka kakhulu ngokusekelwe kumakhodi wokwakha nezinjongo zephrojekthi, kodwa amanani e-U ka-0.40 kuya ku-0.60 ngokuvamile aqondiswe kumihlangano esebenza kahle ngokushisa.

Amakhodi okwakha endawo ngokuvamile abeka izimfuneko eziphansi, kodwa lawo amelela phansi—akusho ukuthi kufanele. Uma wakha noma uvuselela ukuze uthole ukunethezeka nokusebenza kahle kwesikhathi eside, ukucabangela amanani e-U okweqa ubuncane bekhodi ngokuvamile kuyafaneleka.

Indawo yesimo sezulu, umumo wamawindi, kanye nokusetshenziswa kwesakhiwo konke kuyisici esicacisweni esifanele.

Kungani I-U-Values ​​Ibalulekile Lapho Uthenga I-Windows Ku-inthanethi noma Esikalini

Ukuthenga amawindi kungase kudideke ngokushesha. Amagama okuthengisa afana nokuthi 'konga amandla' kanye 'nokusebenza okuphezulu' asetshenziswa ngokukhululekile, kodwa awasho into efanayo ngaso sonke isikhathi.

Amanani e-U anikeza indlela eqondile yokuqhathanisa imikhiqizo. Uma abakhiqizi ababili bethi amawindi abo 'ayonga amandla,' inani le-U likutshela ukuthi iyiphi eyenza kangcono ngaphansi kwezimo zokuhlola ezijwayelekile.

Indlela Yokuqhathanisa Imikhiqizo Ngokufanele

• Bheka amalebula e-NFRC (National Fenestration Rating Council) e-US, noma izitifiketi ezifanayo kwezinye izifunda

• Qhathanisa amanani e-U eyunithi yewindi eliphelele, hhayi nje isilinganiso esimaphakathi sengilazi

• Qinisekisa ukuthi uqhathanisa osayizi bewindi abafanayo kanye nezilungiselelo

• Cela imibiko yokuhlola uma amanani e-U engashiwongo ngokucacile

Ukugwema Izimangalo Ezidukisayo

Abanye abakhiqizi bagcizelela izici ezizwakalayo ezihlaba umxhwele ngaphandle kokunikeza idatha yangempela yokusebenza. Amagama afana nokuthi 'ubuchwepheshe be-thermal' noma 'ingilazi evalekile' azwakala kahle kodwa asho okuncane ngaphandle kwezinombolo ukuze enze ikhophi yasenqolobaneni.

Abakhiqizi abathembekile bahlinzeka ngamavelu e-U ahloliwe, aqinisekisiwe emikhiqizo yabo. Uma inkampani ingakwazi ukukunikeza idatha yokusebenza ecacile, lokho ifulegi elibomvu okufanele licatshangelwe.

Isetshenziswa Kanjani I-U-Values ​​Ukwenza Isinqumo Sewindi Elihlakaniphile

Imibuzo Embalwa Ebalulekile Ongayibuza Abahlinzeki Noma Abakhiqizi

• Lithini inani le-U lewindi lonke lalo mkhiqizo (hhayi nje indawo emaphakathi yengilazi)?

• Ingabe leli nani le-U lihlolwe ngokuzimele futhi laqinisekiswa?

• Yiziphi uhlaka kanye nezinketho zokucwebezelisa ezingathuthukisa inani le-U uma kudingeka?

• Ingabe i-U-value ihluka kanjani kumasayizi amawindi ahlukene emugqeni wakho?

Nini Ukubeka Kubaluleke Kakhulu I-U-Value Kunezinye Izici

Inani le-U kufanele licatshangelwe ngokuyinhloko lapho:

• Wakha noma ulungisa endaweni ebandayo noma exubile

• Amawindi amele ingxenye enkulu yendawo yakho yodonga

• Izindleko zamandla zesikhathi eside zibalulekile

• Ukunethezeka eduze kwamafasitela kubalulekile (amagumbi okulala, izindawo zokuhlala, amahhovisi)

Sekushiwo lokho, inani le-U liyisici esisodwa phakathi kweziningana. Ukulinganisa ukusebenza okushisayo nobuhle, ukusebenza, ukuqina, kanye nesabelomali kuyingxenye yokwenza ukukhetha okulungile kwesimo sakho esithile.

Ukulinganisa Ukusebenza, Ubuhle, kanye Nesabelomali

Iwindi elingcono kakhulu lephrojekthi yakho akulona ngempela leli elinenani eliphansi le-U—yilelo elihlangabezana nezidingo zakho zokusebenza kuyilapho lihambisana nombono wakho wokuklama kanye nemikhawulo yesabelomali.

Ukusebenza nabakhiqizi abanikeza izinhlobonhlobo zezinketho futhi abangakuqondisa ekufinyeleleni kubhalansi efanele ngokuvamile kubaluleke kakhulu kunokujaha inombolo ephansi kakhulu ngangokunokwenzeka.

Imicabango Yokugcina: Kungani I-U-Values ​​Ifanele Ukunakwa Kwakho

Ama-U-values ​​awabukhazikhazi, kodwa angenye yezinkomba ezithembeke kakhulu zokuthi iwindi lizosebenza kanjani esakhiweni sakho. Banqamula ulimi lokumaketha futhi bakunike isisekelo esiphathekayo sokuqhathanisa.

Ngo Derchi Door , siyaqonda ukuthi zonke izinqumo zewindi zibandakanya ukulinganisa ukusebenza, ubuhle, nokucatshangelwa okungokoqobo. Ithimba lethu lilungele ukukusiza ukuthi uhlole imininingwane yobuchwepheshe—okuhlanganisa namanani e-U—ukuze uthole amawindi alingana ngempela nephrojekthi yakho. Kungakhathaliseki ukuthi usebenza ekhaya elilodwa noma ukuthuthukiswa kwezakhiwo eziningi, silapha ukuze sikunikeze ubuchwepheshe nemikhiqizo yekhwalithi eyenza umehluko wangempela.