Mawindo opanda chimango amalowa mu milimita iliyonse yomaliza ya mawonekedwe akunja. Kulumikizana kosasunthika pakati pa galasi ndi chipolopolo cha nyumbayo kumapanga mawonekedwe apadera chifukwa cha kusintha kosalala. Mosiyana ndi mawindo achikhalidwe, mayankho a LEAWOD amagwiritsa ntchito chimango cha aluminiyamu cha thermla break.
M'malo mwake, ma pane akuluakulu amasungidwa m'ma profiles opapatiza obisika padenga ndi pansi. Mphepete mwa aluminiyamu yokongola, yosaoneka bwino imathandiza kuti pakhale kapangidwe kakang'ono, kooneka ngati kopanda kulemera.
Kukhuthala kwa aluminiyamu n'kofunika kwambiri pakulimbitsa kapangidwe kake ndi moyo wautali wa mawindo. Ndi makulidwe a 1.8mm, aluminiyamuyo imapereka mphamvu yapadera, kuonetsetsa kuti mawindowo amatha kupirira mphepo yamphamvu, mvula yamphamvu, ndi mphamvu zina zakunja zomwe zingakumane nazo m'madera a m'mphepete mwa nyanja.