U-Factor | Isiseko kumzobo wevenkile | SHGC | Isiseko kumzobo wevenkile |
VT | Isiseko kumzobo wevenkile | CR | Isiseko kumzobo wevenkile |
Umthwalo ofanayo | Isiseko kumzobo wevenkile | Uxinzelelo lwamanzi oMbhobho | Isiseko kumzobo wevenkile |
Ireyithi yokuvuza komoya | Isiseko kumzobo wevenkile | Iklasi yoThutho lweZandi (STC) | Isiseko kumzobo wevenkile |