Find the right guide
Rotten Roof Battens: Does the Roof Need Replacing?
A roofer reports decayed battens below tiles or slates.
Rotten Roof Rafters: How Serious Is It?
A rafter is discoloured, soft or visibly cracked near a leak.
Black Timber in the Loft: Mould or Rot?
Roof timbers have turned black or have dark surface staining.
Rotten Roof Wall Plate: Warning Signs
The timber along the top of a wall beneath the roof is decayed.
Can a Roof Leak Cause Hidden Timber Rot?
A long-standing roof leak has been repaired, but the timber underneath still looks damaged.
Woodworm Holes in Loft Timbers
Small holes have been noticed in roof rafters or purlins.
Before you arrange a repair
Establish why timber became wet and whether it has actually lost strength. Local signs do not always justify wholesale replacement, but load-bearing damage must be checked.
