Roof joists and beams from an old stone house in central Portugal

Roof joists and beams from an old stone house in central Portugal

Often when we remove an old roof here in central Portugal we can’t believe just how thin the roof timbers are.

Roof joists may be cut from strong wood like eucalyptus or even stronger oak trees but they are rarely cut from the correct part of the log. It could be back in the old days 50 years ago the good quality timber was sold abroad and the locals bought the cheep off cuts. Whatever the reason it wasn’t a good idea.
Being cut from the sides of the log causes the timber to be weaker and they also twist when they bend due to the weight of the roof tiles or wind pressure. Twisting roof joists allow the roof tiles which are not nailed on to slip and they will eventually let the rain in causing more serious problems. Some of these joists are so bent and twisted it’s hard to believe that the roof was still in place.
One thing that the joists in the photograph all have in common is serious infestations of woodworm. For more information on woodworm go to www.casteloconstruction.com

All of the above makes it very difficult to repair a seriously damaged roof. It is often better to replace it because you can’t imitate the old sagging timbers with new strong timbers.

This piece of joist had a hook made from an olive branch. The hook was for holding cooking pots similar to a witch’s cauldron that was hung over an open fire to cook the family meals. Its still common to see old artefacts in rural Portugal. From ox drawn carts to crochet head cushion for carrying the water pots back from the well.

If you have or suspect that you have roof problems let us take a look and give you our opinion of the best way to correct the problem

www.casteloconstruction.com

 

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