Rubber roofing is single sheet rubber membrane that is sized to your individual flat roof. There are no joins or welds to leak or split. 

The correct name for the synthetic sheet is EPDM which stands for ethylene propylene diene M-class rubber. EPDM flat roofing is totally inhert and UV stable - it will not crack or perish and is virtually maintenance free. 

You can download the Technical Information sheet here.