Jan
24

How to Check Your Roof for Damage

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Your roof may go for years without needing any maintenance or repairs, but over time deterioration will occur. You may feel inclined to periodically check your roof in the interests of ‘prevention is better than cure,’ and after – say – a major weather incident such as a violent storm. Clearly if there are symptoms of roof damage such as a water leak detectable in the house, you will be keen to ascertain what the problem is.

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Limitations of ‘DIY Checking’ of the Roof

Clambering about on a roof is a specialism best left to professional roofing contractors, so actually going out on to the roof surface yourself is not recommended. Even if you have a head for heights, you can inadvertently cause damage through an incorrect ‘roof treading’ technique. The most you should consider in terms of checking your roof is to go up a ladder so as to view the roof just above gutter level. Another checking activity you can undertake is going into the loft/attic area and inspecting for internal symptoms of possible damage.

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How to Check Without Mounting the Roof

As well as a ladder (ensure it is leaning against the wall not the guttering/fascia) you can try viewing your roof from an adjacent building such as a neighbour’s upstairs window or similar. A pair of binoculars will help, and from this vantage point it should be possible to carry out some useful checks.

What to Look For

From outside:

Algae/moss – After a while many roofs have green or brown algae on them. In some cases, it actually gives the house some character and is often not a major cause for concern. That said, if you feel levels of algae are too high it is worth seeking a professional opinion from a roofing expert.

Loose/missing slates – If you are inspecting soon after a loosening/loss of a slate, consequential damage may not have occurred but it is clearly something that will need attention promptly.

Buckling/Sagging – If part of the surface of your roof appears to look corrugated (buckled), then it should be professionally inspected.

Damaged Flashing – The metal sheets/strips usually found where structures, such as chimneys, join the roof. If it looks warped or damaged, then have it inspected. Flashing damage is a main cause of leaks/damp in the house.

Guttering – Any obvious blockages? Build ups of silt being washed from the roof by rainwater or other debris can cause blockages and thus water overflow.

From inside (in the loft/attic):

Leaks/moisture – Be aware that where you see moisture/water may not necessarily be where the leak is. Water can travel away from the leak site and appear elsewhere.

Discolourations – If present, they will be found on the rafters and indicate water/moisture somewhere. Have it checked professionally.

Holes/cracks – Better to check on a bright day as these will be easier to spot.

Remember: seek professional verification of what you discover with your checks.