Sheffield Cathedral
We renovated a section of Sheffield Cathedral roof in 2018, works included:
Installing a vapour control layer (this is the silver material laid onto old roof) new roof timbers were then installed on top
PIR insulation was added between the rafters and then a breathable roof felt laid over the top
Whats called penny gap boarding was then laid over the breathable felt ready for the sand cast lead sheets to go back on
Box gutters and corners to all parapet walls had to be formed
Lead work was then installed complete with lead lined box gutters