Re-Roof or Overlay the Old Roof? Why Stripping Is Right

When a roof's getting tired, someone will usually offer to "just tile over the top" to save money. It sounds tempting — but it's one of those shortcuts that costs more in the end. A proper re-roof means stripping the old covering off, inspecting and renewing the battens and membrane underneath, and re-tiling to current standards — so the whole roof is sound, not just the bit you can see. Overlaying skips all of that and hides the very faults you're paying to fix.

What overlaying really does

Laying new tiles over old buries the existing battens, fixings and underlay out of sight — the exact things that fail with age. It adds weight the roof structure was never designed to carry, it rarely meets the current BS 5534 standard for tiling and fixing, and it can leave rot and nail fatigue quietly working away beneath a fresh-looking surface. You get a roof that looks new and behaves old.

What a proper re-roof involves

• Strip the old covering back to the rafters.
• Inspect and renew the battens — new treated, graded timber where needed.
• Fit a fresh membrane (a breathable one where the roof space needs to breathe — see breathable membranes).
• Re-tile on new fixings, to current standards.
• Finish ridges, verges and vents — mechanically fixed, so there's no mortar to fail.

Done this way, the whole build-up is renewed and inspected. There are no nasty surprises hiding under the surface, because there's no surface hiding them.

When a repair is still the answer

None of this means every roof needs replacing. A covering with plenty of life left, and a fault in one area, just needs a good repair — and we'll say so. A re-roof is for when the covering, battens or fixings are genuinely spent across the whole roof. The test is honest assessment, not a sales target.

The value question

Overlaying wins on the day and loses over the years — trapped faults tend to surface early, and then you're paying a second time. A re-roof done once, properly, with a written workmanship guarantee of up to 15 years, is usually the better value across the real life of the roof.

Frequently asked questions

Can you just put a new roof over the old one?

It's sometimes offered as a cheaper option, but it hides the real condition of the battens and underlay, adds weight the structure wasn't designed for, and rarely meets current standards. A proper strip-and-re-roof is almost always the right call.

Why is stripping the old roof better?

Because you can only fix what you can see. Stripping lets us inspect and renew the battens, fit a fresh membrane and re-tile to current standards — so the new roof is sound all the way through, not just on the surface.

Isn't overlaying much cheaper?

It looks cheaper on the day, but it often traps existing faults and can fail years earlier — so you can end up paying twice. A re-roof done once, properly, is usually the better value over the life of the roof.

Do I always need a full re-roof, or will a repair do?

Plenty of roofs just need a targeted repair. A re-roof is for coverings that are genuinely at the end of their life. We'll tell you honestly which one yours is, in writing.

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Wondering whether your roof needs a repair or a proper re-roof? We give straight, free, written answers across Hull, Beverley, Hessle and the East Riding — re-roofing by our own team, guaranteed. Call 07447 352091.