- air-tightness, GFS/enamel roof is suitable for anaerobic digestion condition
- cone shape roof with external/internal beams according to the requirement
- optimum material same as tank sidewall
- economic option for potable water, wastewater, and fire water storage etc.
- only protect from raining and wind, without air-tightness
- suitable for anaerobic digestion condition with biogas collection purpose
- integrated AD tank with the cover on top of tank, air-tightness
- suitable for no air-tightness required situation such as drinking water, agriculture, fire water, and wastewater storage
- the shape of FRP roof can be dome or flat