When timber decks and
pergolas are poorly detailed and constructed, or when inappropriate timber
species are used, there is often severe rot deterioration at connections,
end grains and places where water tends to remain after cessation of
rainfall or after plant watering etc. Richard Cortis can advise on remedial
works to rectify rot damage and extend the durable service life of the
structure.
The timber is a useful structural material which will accept significant overstress for short periods. However, if the overstress is maintained in the longer term, the timber will develop a permanent bend
Timber structures are susceptible to termite attack and should be regularly inspected
Geotechnical problems can cause building movement.
If there is building movement, a detailed geotechnical investigation is recommended before attempting remedial works.
Buildings on difficult sites with difficult access will be more costly to maintain than buildings on sites with easy access
Structures close to the sea will have specific maintenance issues
It is necessary to provide temporary access during remedial works and the cost can be significant
When structures are repaired, some attempt should be made to match the existing material
Marine structures tend to suffer deterioration in the inter-tidal zone and the splash zone