Transfer is because of temperature distinction on each side from the glass caused by air during the cold and hot aspect down while in the facet up, produce air convection, causing the lack of Power. l'utilisation de ciment sous contrainte ou d'additifs expansifs dans la construction de constructions monolithiques ; https://modtp-cas-no-72030-25-238148.blogdon.net/details-fiction-and-naphthalene-sulfonate-in-concrete-51597367