Roofing system and method of installation

A roofing system comprising:

• a plurality of riser blocks disposed on a surface structure, the plurality of riser blocks including a first group of riser blocks aligned in a first row, wherein each of the riser blocks is tapered so as to have a greater depth at a lower side and a smaller depth at an upper side;
• a first batten extending along the first row and supported by the first group of riser blocks, the first batten including a first clip portion;
• and
• a first group of roofing panels disposed along the first row and supported by the first batten, each of the roofing panels of the first group of roofing panels including a front surface, a rear surface, and a second clip portion extending from the rear surface, the second clip portion being configured to engage the first clip portion of the batten so as to secure the roofing panels to the batten.