Roof problems rarely announce themselves clearly. A slipped tile or a small crack in a flashing detail does not usually cause an obvious leak straight away, it lets water in gradually, and by the time you notice a stain on a ceiling the damage underneath can already be significant. Knowing what to look for, both from the ground and inside the loft, means you can catch problems while they are still a small repair rather than a full re-roof.
Signs visible from ground level
Walk around the outside of your house and look up at the roof from a few different angles. Slipped, cracked or missing tiles are the most obvious sign of damage, and on a terraced house they are often easiest to spot by comparing your roof to your neighbours'. Sagging in the roofline, moss build-up concentrated in one area rather than spread evenly, and staining or streaking on the roof slope can all indicate an underlying problem with the felt or structure beneath. Guttering that is pulling away from the fascia, overflowing in heavy rain, or has visible plant growth in it is also worth checking, since blocked or damaged guttering pushes water back under the roof edge.
Signs visible from inside the loft
A loft inspection with a torch will often tell you more than looking from the ground. Daylight showing through the roof structure, damp or dark staining on the timbers, sagging or wet insulation, and a musty smell are all signs that water is getting in somewhere. Check around chimney stacks and roof lights particularly closely, as flashing details around these penetrations are the most common place for leaks to start, more so than the main field of tiles.
What causes most roof damage in North London
Older Victorian and Edwardian roofs, common across Barnet, Haringey and Camden, often have original slate or clay tiles that have simply reached the end of their working life, alongside lead flashing that has cracked with age. Storm damage, particularly from strong wind gusts, is the most common cause of sudden tile loss. Poor previous repairs, where a patch has been bodged rather than properly re-flashed, are another frequent source of recurring leaks that keep coming back in the same spot.
- Check your roof from ground level after any storm or period of strong wind
- Look inside the loft with a torch every few months, especially after heavy rain
- Pay close attention to flashing around chimneys, roof lights and party walls
- Clear gutters at least twice a year to stop water backing up under tiles
- Deal with small leaks immediately, they very rarely stay small
- Get a professional roof survey before buying or extending a period property
Most of the emergency call-outs we get started as a small, unnoticed leak months earlier. A five minute check of your loft after a storm can save you thousands in ceiling and timber repairs later on.
If you have spotted any of these signs, or just want peace of mind before winter, contact Hozea Construction for a roof inspection and honest advice on what, if anything, needs doing. Call 07969 378509 to arrange a visit.
Common questions
- How often should I check my roof for damage?
- A visual check from the ground a couple of times a year, plus a loft inspection after any significant storm, is enough to catch most problems early. Older roofs benefit from a professional survey every few years.
- What is the most common cause of roof leaks?
- Failed flashing around chimneys and roof lights is the most common cause, followed by slipped or cracked tiles after storm damage and general wear on ageing roof coverings.
- Can I repair a roof myself?
- Minor jobs like clearing gutters are fine to do yourself with the right safety equipment, but tile replacement, flashing repairs and any work at height are best left to a professional roofer to avoid further damage or injury.