It depends on the material you use, but if your flat roof is installed correctly it should last for at least 10 years, and at least 20 if a material other than felt is used. Always question a roofing company when they quote to find out what materials they use and what guarantee's they offer.
Isle Of Bute
The Isle of Bute, referred to as Bute, is an island in the Firth of Clyde in Scotland, United Kingdom. It is split right into highland as well as lowland locations by the Highland Boundary Fault. Formerly a constituent island of the bigger Area of Bute, it is now part of the council location of Argyll as well as Bute. Bute's resident population was 6,498 in 2011, a decline of simply over 10% from the number of 7,228 recorded in 2001 versus a history of Scottish island populations as a whole expanding by 4% to 103,702 for the same period. The name "Bute" is of uncertain beginning. Watson and Mac an Tàilleir support a derivation from Old Irish bót ("fire"), probably in reference to signal fires. This recommendation to beacon fires may date from the Viking duration, when the island was possibly known to the Norse as Bót. Other feasible derivations include Brythonic budh ("corn"), "triumph", St Brendan, or both, his reclusive cell. There is no most likely derivation from Ptolemy's Ebudae. The island was likewise understood throughout the Viking era as Rothesay, perhaps referring to the personal name Roth or Roderick as well as the Old Norse suffix ey ("island"). This name was at some point taken by the primary town on the island, whose Gaelic name is Baile Bhòid ("community of Bute").