New roof - Signs that your roof needs replacing

New RoofA new roof on an existing structure is always the last resort as it tends to be a large and expensive job compared to a roof repair.

However, in some cases a repair is unavoidable, for example if a roof is damaged beyond repair or you have purchased an older home with pre-existing roof damage – or even no roof at all.

Your roof has to be in tip top condition if it is going to be able to bear the brunt of the unpredictable British weather, which can range from heavy downpours of rain to high winds, hailstorms and snow, depending on the season.

Signs of deterioration to look out for

Roofs deteriorate with age and their deterioration can be intensified due to the elements. Symptoms worth looking out for, which could indicate a problem, include:

  • Missing or loose slates or tiles
  • Dislodged slates or tiles
  • Moss/algae growth
  • Roofing that is buckling or sagging
  • Curling
  • Damaged flashing
  • Leaks

Different types of roofs

There are generally two roof types – a flat roof and a pitch roof. The latter type features slates or tiles while a flat roof is constructed from single ply membranes such as Thermoplastic Polyolefin (TPO), Elastomeric membranes (EPDM) and PVC, mastic asphalt and built up felt.

New Flat Roof

Flat roofs use tar and gravel based surfaces, but unfortunately these are susceptible to pooling, especially in the winter months, which can lead to damage from sagging to complete roof failures.

These type of roofs utilise materials which enable water to run off their horizontal surface easily. More modern flat roofs tend to be covered with a membrane to prevent pooling and standing water. However, it’s time for a repair or even a new roof if this doesn’t happen.

It’s worth bearing in mind that flat roofs are very sensitive to human traffic, and cracks or punctures to a flat roof surface will lead to leaks.

New Tile or Slate Roof

Roof tiles are specifically designed to move rain away from the roof and are traditionally made from clay or slate. Tiles are hung to a roof from the framework using nails and are hung in parallel rows with each one overlapping the row below to ensure the rain water travels down the roof and also protects the nails from damage.

There are special tiles that are required for specific parts of the roof where the planes of several pitches meet and include ridge, hip and valley tiles.

Despite being a lengthy process to install, they are the most popular roof styles in the UK because they move water off the roof better than most other styles. A stand-out fixture of a traditional British home, a tiled/slate roof is the best option for any home with a slanted roof.

New Metal Roof

A metal roof, also referred to as tin roofs, is a roofing system made from a selection of metal tiles pieced together. Commonly used in commercial and outbuildings, as opposed to residential properties, metal roofs are not only lightweight, portable and durable, they are also fire resistant, wind resistant and recyclable.

Although a cheaper option, they can be subject to a lot of noise from the weather, and can cause corrosion when added to another product

Whether you’re in the market for a new flat roof, or require the installation of a new slate or tiled roof, you will need to find a qualified roof installer who is registered with The National Federation of Roofing Contractors (NFRC) to install a new one

Builder Guide can aid you in your search for qualified roofers. We offer the services of national and local recommended roofers for all different types of roofs – be it flat, tile, slate or metal.

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