Roof problems
What each common roof fault actually looks like, what causes it and what the repair involves.

Finding where a roof leak actually starts
For homeowners who can see damp inside but cannot tell what is causing it.
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Chimney flashing leaks
For anyone with damp appearing on a chimney breast or in the loft beside a stack.
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Storm damage to a roof
For property owners dealing with wind damage right now, and the insurance claim afterwards.
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Slipped, cracked and missing tiles
For owners who can see a gap or a displaced tile from the ground.
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Loose ridge tiles and failed mortar
For owners who can see cracked mortar along the top of the roof or have had a ridge tile come down.
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Ponding water on a flat roof
For anyone who has looked at their garage, extension or dormer roof and seen a puddle that never dries.
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Blisters, splits and cracks on a flat roof
For owners deciding whether a tired flat roof can be patched or needs replacing.
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Loft damp that is condensation, not a leak
For homeowners with wet timbers, black mould or dripping felt but no obvious hole in the roof.
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Moss, debris and blocked gutters
For owners of shaded or tree-lined properties where the roof is greening over.
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A roof that is sagging or dipping
For owners of older properties worried about a visible dip in the roof line.
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Failed valleys and crumbling verges
For roofs leaking where two slopes meet, or losing mortar along the gable edge.
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Leaks on commercial and industrial roofs
For property managers and business owners with water coming into a working building.
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Damp patch on the ceiling: leak or condensation?
For anyone who has just spotted a stain and wants to know whether to ring a roofer tonight or in the morning.
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Why a roof leaks only in driving rain
For owners of exposed properties where a roof is watertight in a downpour but wet in a gale.
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