Specification of Roof of Onduvilla Bitumen
Onduvilla is derived from Onduline, material is equal to Onduline bitumen cellulose fibers, but it looks like tile tesusun contents 3.
Size 1060mm x400mm.
Batten spacing = 30cm.
coverage per lbr = 0, 31m2
1 m2 = 3 pcs
demand spikes = 8 pcs / sheet