Walk around St Mellons and you will notice how many houses have a flat roof somewhere. It might be a garage built in as part of the original estate, a porch over the front door, or a rear extension added by a later owner. These roofs do a lot of work and tend to be forgotten until a stain appears on the ceiling.
Flat Roofing South Wales repairs and replaces flat roofs across St Mellons, Rumney, Llanrumney and the east Cardiff area. We work in EPDM rubber, GRP fibreglass and felt, and we choose the system to suit the roof and how it is used, not the other way round. Where a repair will do, we say so.
Much of St Mellons was built from the 1970s onwards, and the house designs of that time often included an integral or attached garage with a flat roof. Many of those roofs are still the original build, or have been recovered once, and are now well beyond what anyone expected of them. Porches and small lean-to sections are just as common.
Extensions are the other big source. Over the years owners have added kitchens, utility rooms and bedrooms at the back, and the simplest way to roof them was flat. Some were done well, and some were not, with poor falls and weak joints against the house wall. Round Pontprennau and Old St Mellons you also see a mix of newer builds with small flat sections over bays and dormers.
The weather does the damage. Rain sits on any roof that does not drain properly, and ponding water finds the smallest weakness. Wind driven rain across open ground, winter frost and strong summer sun all stress the surface, and felt in particular cracks and blisters. Blocked outlets, failed edge trims and lifting laps are the usual points of failure.
A single sheet of rubber that is bonded across the roof, so there are very few joints to fail. It suits garages and extensions with a simple shape, and it copes well with the movement and weather an exposed roof gets.
Fibreglass is laid in one seamless layer and sets hard, which makes it a good choice for roofs with awkward corners, small porches and balconies, or places where people may walk. It follows tricky shapes well.
Modern layered felt is a sensible option for larger roofs, sheds, outbuildings and some repairs where the existing roof is sound. It is a familiar system, and it suits the budget-conscious job when installed with proper detailing.
A leak inside is not always where the water gets in. Water can run along a deck or down a wall before it shows. We trace it back by checking the surface, the joints, the edges and the junction with the house wall. If the damage is local and the deck is dry and sound, a repair is a fair answer and we will not talk you into more.
If the covering is cracked all over, the deck is soft or damp, or the roof has been repaired several times already, replacement is usually the better choice than chasing leaks. We explain what we found, show you where we can, and put the options in the written quote so you can decide at your own pace.
At Flat Roofing South Wales, we provide professional flat roofing installation, replacement and repair services throughout South Wales, helping homeowners, landlords and businesses maintain watertight and dependable roofs.
Often it is a repair if the deck underneath is dry and firm and the damage is in one spot. If the surface is cracked across or the boards are soft, replacement makes more sense. We look at the whole roof before saying which.
Yes. We cover new and existing extension roofs with EPDM, GRP or felt, and we pay attention to the falls, the outlets and the joint against the wall, since that is where most failures start. Building Regulations or planning checks may apply for a new structure, and we advise before work starts.
All three can last well when fitted properly, so the detail matters more than the name. EPDM suits simple shapes, GRP suits awkward ones, and felt suits larger or budget-led jobs. We recommend the one that fits your roof and tell you the reasons.
Yes. If water is coming in, call us on 07766 547309 and we will talk through what is happening and arrange a visit as soon as we can. A temporary fix may be possible first, with a proper repair or replacement planned afterwards.
Standing water means the roof is not draining as it should, because of poor falls, a sagging deck or a blocked outlet. Puddles speed up wear and make leaks more likely. Sometimes clearing the outlet helps, but often the roof needs re-laying to the right fall.
Tell us about the job and we'll get back to you — usually the same day.
Prefer to talk? Call 07766 547309.
