Slate Roof Storm Damage in Porthcawl: Repair or Replacement?

First, Establish What You Have

This matters because slate and concrete tile fail differently, and the repair-or-replace question has different answers for each.

• Natural slate. Thin, flat, no profile, usually dark grey with slight colour variation between individual pieces. Laid in overlapping courses with a visible double thickness at each lap.
• Fibre cement slate. Also flat and thin, but uniform in colour with no variation, and often with a small visible fixing hook at the tail. Common on later twentieth-century housing.
• Concrete or clay tile. Thicker, usually profiled, and visibly interlocking with its neighbours rather than simply overlapping.

If you are unsure, a photograph from the ground is normally enough for us to tell you, and a piece that has come down settles it immediately. It is worth knowing before you get quotes, because it changes what a reasonable one looks like.

If It Is Natural Slate: The Nails Are Usually the Issue

Welsh slate outlives its fixings on most roofs. It is held by two nails near the head, and those corrode over decades — faster in salt-laden air, which reaches well inland here.

So the decision turns on whether that corrosion is local or has reached the whole slope. The evidence is what came down.

• Whole slates with clean holes: the nails failed
• Whole slates with rusted nail fragments still in them: the same, further advanced, and the clearest evidence available
• Broken slates with no impact: the slate itself may be delaminating
• Losses from several unconnected areas, or in successive storms: a general condition rather than a local fault

If It Is Fibre Cement: A Different Lifespan Entirely

Worth separating out, because people apply natural-slate thinking to it and reach the wrong conclusion.

Fibre cement slates have a service life measured in decades rather than a century, and they become brittle towards the end of it. On a roof at that stage, individual replacements are difficult without cracking the neighbours, and each repair tends to create the next one.

If your roof is fibre cement, the age of the covering matters far more to the decision than it would on natural slate, and a roofer should be asking about it.

The Hipped Roof Complication

This is the Porthcawl-specific part, and it is a genuine cost factor that people are not told about often enough.

Recovering a hipped roof is a bigger job than recovering a gabled one of the same floor area. There is more cutting, because slates and tiles have to be cut to the angle at every hip. There are four hip lines to re-form rather than two verges. And the corners, where hip meets eaves, are fiddly detailing that takes time.

• More cut material, and more waste
• Four hip lines to bed or mechanically fix
• More scaffolding, because access is needed on all four elevations rather than two
• More perimeter detailing overall, which is where the labour is

None of that is a reason not to do it. It is a reason to expect the quotation for a hipped bungalow to be higher per square metre than a gabled two-storey, and to be suspicious of one that is not.

The Case for Upgrading While It Is Open

A recover is the one opportunity to fix the underlying problem rather than repeat it, and on an exposed coastal roof that is worth real money over the following decades.

• Fixings specified for a marine atmosphere rather than standard ones, which is the single most useful change on a roof here
• Mechanically fixed ridge and hips instead of mortar, so the whole failure mode goes away rather than restarting
• Underlay where there was none, which is a second line of defence the original roof never had
• Additional clipping at the perimeter and in the field, which is specifically an exposure measure

Ask for these to be priced as options. A quotation that recovers a roof on an exposed coastal site with standard fixings and mortar hips is putting it back exactly as it was, which on a roof that has just failed is a strange thing to pay for.

When in the Year to Do It

A recover is a job with the roof open, and on this coast timing it well is worth real money and real aggravation.

The roof is stripped in sections rather than all at once, and each open section is temporarily covered overnight and in poor weather. That works. It works considerably better between roughly April and October, when the weather windows are longer and a run of wet, windy days is less likely to stop work for a week with the roof part-finished.

• Mortar and bedding need conditions to cure; cold and wet delay them
• A part-stripped roof in a winter gale on this coast is a genuine risk to the building, not just an inconvenience
• Scaffolding standing for longer than planned is a cost, and winter weather is what makes it stand longer
• Good roofers are booked further ahead in summer, so a spring enquiry for summer work is sensible

None of which means a roof that has failed in November should wait until April. It means that if the roof is holding and the decision is a planned one, choosing when is a lever you have. Make it safe now, recover it in a decent spell, and you get a better job for the same money.

The Arithmetic

Access is a large part of the cost of any roof repair, and on a hipped roof it means scaffolding on more elevations. You pay it every time somebody comes out.

Three repairs over three winters is three lots of access on a roof that is no better than it was. Ask for both options priced, with a view on how long the repair is expected to hold, and compare real numbers.

T & T Roofing South Wales will tell you what covering you have, which situation we think you are in and why, across Porthcawl, Nottage, Newton and Rest Bay. If a repair is the right answer, that is what we will quote for.