1: Dace da Flat Rooftop/Ground. 2: Hoto da yanayin shimfidar wuri. Kirkira Na Musamman, Sauƙin Shigarwa. 3: Zai iya tsayayya da matsanancin yanayi, wanda ya dace da AS / NZS 1170 da sauran ka'idoji na duniya kamar SGS, MCS da dai sauransu.