Bedworth has two roofing populations and assuming the wrong one is expensive.
The colliery terraces and the older housing are largely slate on cut timbers, built in long runs with shared party details and valleys where the rows meet. Valleys and abutments are where water gets in, and a valley patched for twenty years will keep failing in the same place until the lead is renewed properly.
The interwar, post-war and modern housing is concrete tile on trussed rafters. The common mistake runs the other way: a roof built for concrete tile will generally take slate, but a roof built for slate cannot always take concrete tile, because concrete is heavier. On a terrace built to 1893 economics that is not a theoretical concern. If somebody offers to re-cover an old slate roof in concrete without examining the structure, get a second opinion.
Re-covering is where Building Regulations become involved, because replacing a substantial part of a covering triggers a requirement to look at insulation. We arrange the inspection for that and see it through to sign off.
In Bermuda and the conservation areas the covering material is not a free choice, and where an Article 4 direction applies the control is tighter still. We check before quoting and quote what will actually get through. More on our roofing page.