Working with local materials he mixed cement and crushed coral at the site in an effort to build a massive elevated vault that could span 28.5 feet. To this end he had a single pair of centering frameworks made in England and shipped to him in pieces.
Aliamua kujenga paa la zege badala ya kutumia mbao kwa sababu ya kuhofia mbao hizo kuharibiwa na mchwa na hatari ya moto na hakuweza kujenga paa hilo kwa kutumia vifaa vya chuma kwasababu hakuwa na fedha ya kugharimia.Alitumia vifaa vya kienyeji katika ujenzi, alichanganya saruji na kokoto katika juhudi zake za kujenga paa kubwa lenye upana wa futi 28.5. Ilikuikamilisha kazi hii alitumia mbea moja ya chombo kilicotengenezwa Uingereza mbacho kililetwa hali ya kuwa hakijaunganishwa pamoja.