Siyini isilinganiso se-NFRC samawindi?
Ilebula ye-NFRC ikusiza ukuthi uqhathanise phakathi kwamawindi akonga amandla, iminyango, nama-skylights ngokukunikeza izilinganiso zokusebenza kwamandla ezigabeni eziningi. I-U-Factor ikala ukuthi umkhiqizo ungagcina kanjani ukushisa kungaphumi ngaphakathi kwegumbi. Uma inombolo iphansi, umkhiqizo uba ngcono ekugcineni ukushisa.
Isitifiketi se-NFRC sinikeza abathengi isiqinisekiso sokuthi umkhiqizo we-Vinco ukalwe uchwepheshe ophambili emhlabeni ekusebenzeni kwamafasitela, umnyango, nokukhanya kwesibhakabhaka, ngaphezu kokuqinisekisa ukuthotshelwa kwemithetho.
Imelelani i-AAMA emafasiteleni?
Esinye sezitifiketi ezibaluleke kakhulu zamafasitela sinikezwa yi-American Architectural Manufacturers Association. Kukhona futhi uphawu lwesithathu lobuhle bewindi: isitifiketi esivela ku-American Architectural Manufacturers Association (AAMA). Ezinye izinkampani zamafasitela kuphela ezithatha Isitifiketi se-AAMA, futhi iVinco ingenye yazo.
Amawindi anezitifiketi ze-AAMA ahlangabezana namazinga aphezulu ekhwalithi nokusebenza. Abakhiqizi bamafasitela banakekela kakhulu ubuciko bamafasitela abo ukuze bahlangabezane nezindinganiso ezibekwe yi-American Architectural Manufacturers Association (AAMA). I-AAMA ibeka wonke amazinga okusebenza embonini yewindi.
