When a repair is needed in North Walsham, choosing the right materials from the outset saves money and headaches further down the line.
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Roof repairs are not simply about replacing like-for-like. Sometimes like-for-like is exactly right. Other times the original material was the source of the problem, or is no longer available, or a better option now exists. Understanding what is on your roof and what the alternatives look like helps you make an informed decision rather than just accepting whatever a roofer recommends.
Pantiles - the S-curved clay tiles associated with older Norfolk properties - are a traditional roofing choice. They are distinctive and, on the right roof pitch, highly effective. Second-hand pantiles are usually the best match for repairs because new production clay pantiles often differ slightly in colour and size from older stock. A good roofer should source matching reclaimed tiles rather than substituting a modern concrete alternative that will stand out for decades.
The downside of pantiles is that they are brittle and the interlocking profile means a single broken tile can let water track sideways under its neighbour. On steeper pitches they perform well; on lower pitches - below about 35 degrees - they need careful pointing at verges and ridges to prevent wind-driven rain getting underneath. If you are having pantiles repaired, ask the roofer what mortar or dry-fix system they intend to use at the verges.
Post-war housing was often roofed in concrete interlocking tiles. They are inexpensive, widely available and straightforward to replace. The main issue is colour fade: concrete tiles lighten and mottle over decades, so a new replacement tile on an older roof will be noticeably darker. This is largely cosmetic and most homeowners accept it on a repair. Where a large section is being replaced, some roofers will shuffle older tiles from a less visible slope to the front and put new tiles at the rear.
Concrete tiles can also crack from frost if water sits in a damaged section. Cracked tiles should be replaced rather than patched - silicone or roof sealant applied to a cracked tile is a short-term fix that delays the inevitable and can trap moisture.
Natural slate is the premium option for pitched roofs and appears on many older properties. Welsh slate - from the Penrhyn or Cwmorthin quarries, for example - is widely regarded as the best available and can last well over a century when properly laid. Spanish slate is a common alternative and costs less, but it varies considerably in quality and some grades are noticeably more porous.
When matching slate on a repair, thickness and texture matter as much as colour. A roofer should be willing to show you sample slates and explain where they are sourced. Using a thin, low-grade slate to patch a roof originally covered in thick Welsh slate will mean the repair fails sooner and looks wrong. Reclaimed Welsh slate is available and is often preferable to new imported material for small patch repairs.
Lead remains the standard for flashings around chimney stacks, in valleys and at abutments. Code 4 lead (1.8mm thick) is generally used for flashings and soakers, and Code 5 (2.24mm) for valleys and larger areas. Properly installed lead work expands and contracts with temperature changes and, if correctly fixed, can last fifty years or more without needing attention.
Alternatives to lead exist - lead-effect aluminium and EPDM-based flashing tape among them - but these are generally used as patch repairs rather than full replacements. Flashing tape used over failed lead is a temporary measure; it will not bond permanently to a rough masonry surface and will fail again within a few years. If lead flashing has cracked or lifted, replace it properly rather than applying tape over the top.
For flat or low-pitch roofs on extensions, outbuildings and garage roofs, the two main repair and replacement options are torch-on felt and EPDM rubber membrane.
Chimneys on older North Walsham properties are frequently a source of leaks. The mortar pointing between the brickwork erodes, the flaunching (the cement around the base of the pots) cracks, and the lead flashing at the junction between chimney and roof lifts or splits. Each of these needs a different repair. Repointing the stack with an appropriate lime or sand-cement mortar mixture, renewing the flaunching and replacing the flashing are often done together when scaffolding is already in place - it makes no sense to repair the flashing and leave failing pointing that will bring the scaffold back within two years.
Before agreeing to a repair, ask your roofer:
We carry out repairs across North Walsham and the surrounding area, including work in nearby Stalham, Overstrand and Mundesley, as well as villages such as Trunch and Bacton. For honest advice on what material suits your roof and what the repair involves, call Aylsham Roofers to arrange a survey.
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Call any time. Calls are answered day and night and passed straight to our roofers.
