Which part of an older roof tires first?
Often the covering outlasts its surroundings. Marley's figure for concrete tiles is about 60 years, with a note that it is not a warranty. Clay carries a 60-year minimum in Building Research Establishment figures. Well-maintained slate, the Confederation of Roofing Contractors says, may outlive a century. The weaker links tend to be the mortar under a ridge, the nails, the metal at a chimney and the underlay where it hangs down into the gutter.
The loft gets the same attention. Where the felt is the old non-breathable kind, BS 5250 expects air to move along the eaves, and insulation packed tight into that gap stops it. Warm damp air from the rooms then settles on cold timber. Our pitched roofing page covers mending tiles, battens and underlay, and if a ceiling is already stained we make the roof safe first, as the emergency and general roof repairs page describes.
Why does a Rusthall price follow the survey?
Because four things move it: the area of roof, the covering, the height and access, and whatever the survey finds under the tiles. For a sense of scale, Checkatrade's cost guide (table dated October 2026) gives a typical UK range of £170 to £500 for replacing up to five roof tiles, the highest figure being the job done with scaffold. Your written price is one total after we have been on the roof.