Kerriewarm

"As a minimum, expect to pay £100/m2 for zinc roofs", Rebecca Foster states, but Jonathan Lowy from VMZinc adds that "The location, size and complexity of your project will obviously have an influence on the cost."

Most fibreglass roof guarantees are for years, and there will be no problems at all if correctly installed.

Your gutters should be sized according to local rainfall and roof area demands, with larger half-round or deepflow profiles increasing capacity.

Installed correctly, a green roof not only looks great but provides many different benefits including water storage, decreasing flood risks and new habitat creation.