Building roof structure

The invention relates to a building roof structure which comprises a mounting rack, mounting boards, reinforcing ribs and a weather-resistant adhesive. The reinforcing ribs are arranged on the mounting rack and are provided with grooves, folded edge portions are arranged on the peripheries of the mounting boards and are clamped in the grooves, and the weather-resistant adhesive is arranged among the folded edge portions. The building roof structure is simple in installation and stable in structure and improves security coefficients. In addition, the poor waterproofness of a reconstructed ancient architecture roof is overcome, namely the load of a roof can be reduced, and a waterproof roll base layer cannot shed in a later period of adhesion so that the waterproof performance of the reconstructed ancient architecture roof is stably improved. 本发明涉及种建筑屋顶结构包括安装架，安装板，加强筋和耐候胶，所述加强筋设置在安装架上，加强筋具有凹槽，所述安装板周边设有折边部，折边部卡设在所述凹槽中，相邻折边部之间设有耐候胶。本发明的建筑屋顶结构安装简单，结构稳定，提高了安全系数；此外，解决了屋顶古建改造防水性能不足，即能降低屋顶的荷载，还可以让防水卷材基层粘结后期不会脱落，使古建改造屋