Tag Archives: ceilings

Woodworm

Woodworm is a problem in old Portuguese houses

Woodworm is a problem in old Portuguese houses

Woodworm, as you have probably already heard, is a problem in old Portuguese houses.

Woodworm is a problem in old Portuguese houses with a mixture of the right climate and unprotected wood used to build homes its wood worm heaven.
Wood worm control or prevention is a major concern to anyone spending money on refurbishing or building a home here in Portugal.
With insects varying in size from the huge wood wasps to tiny wood-boring insects such as Xestobium rufovillosum, The death-watch Beatle.

Woodworm
Portugal,old house,woodworm in old house, Castelo construction

Once a support beam in a sheltered part of the house, usually the roof or floors is devoured by the wood boring insects the bean starts to sag or just crumbles resulting in dipping floors or roofs which let the rain in. Once the rain is allowed to contact the roof timber the mixture of dry rot and woodwork attack can result in a collapsed roof in a very short time.

If you are lying in bed or sitting quietly you can often hear a crunching sound all night, every night. It’s the Death-watch Beatle whose head makes a clicking sound as it burrows into the wood.

I know clients who it has driven crazy. The pear under the floor or up in the roof space trying to find the source of the noise.

As the woodworm is actually inside the wood its impossible to locate them.

We have just the thing to sort them out.

Once everything wooden in the house structure is treated. You should have no problem.

“The beams supporting the first floor ie: the ground floor ceiling beams Is the woodworm treated in those beams, or is it still active?” It will be active at the moment.

The previous owners or people before they used old engine oil to treat the woodwork.

It’s free, cosmetic and does nothing harmful to the insects because they are already inside the wood, chomping away merrily.

To find out more about the death watch beetle https://en.wikipedia.org/wiki/Deathwatch_beetle

Contact info@casteloconstruction.com to discuss the best solution for your woodworm problem.

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Vijf dingen om te weten over een typisch Portugees dak, typisch dakontwerp, het kopen van een huis in Portugal

Vijf dingen om te weten over een typisch Portugees dak, typisch dakontwerp, het kopen van een huis in Portugal

Vijf dingen om te weten over een typisch Portugees dak

Dit dakontwerp en constructie is zeer typerend voor Portugese huizen die de laatste 100 jaar zijn gebouwd.

Wat moet je weten als je een huis hebt gekocht of een huis in Portugal koopt?

Het dak is gemaakt van hout. De grote ronde paal bovenaan de foto is een hele boom en het is Eucalyptus. De ronde paal lager op de foto is een dakgording en is ook Eucalyptus. Dit vertelt ons dat het dak in het verleden is vervangen.

De dakbalken, die onder een hoek aan elke kant van het dak lopen, zijn ook gezaagde Eucalyptus en ze zijn veel te dun en zwak om op een dak te gebruiken, wat resulteert in een dak dat zal buigen bij harde wind en stormen die dakpannen kunnen losmaken en / of Maak ze stuk.

De tegellatten zijn gemaakt van Portugees grenen en zijn zeer gevoelig voor houtwormaanvallen. Hierdoor kan een dakpan doorgaans worden verplaatst en kan regenwater de dakbalken en gordingen doordrenken, waar ze elkaar tegen de muren van het huis ontmoeten. Het vocht roteert uit de uiteinden van de balken en gordingen waardoor daken inzakken.

De dakpannen worden vaak in een te ondiepe hoek gelegd, zodat ze niet goed kunnen werken, waardoor regen eronder terug kan blazen en op het dakhout kan rotten. Je zult ook op de foto zien dat je daglicht kunt zien door gaten in de dakpannen. Door deze gaten zal ook de ruimte op het dak regenen.

Hier is een voorbeeld van een dak dat Castelo Construction heeft gebouwd met correct bemeten hout dat generaties lang meegaat.


00351 927168247

www.casteloconstruction.com

kelvin@casteloconstruction.com

Vijf dingen om te weten over een typisch Portugees dak, typisch dakontwerp

Answers to your questions

Answers to your questions

Here are my answers to your question.

“I also wonder what general advice you can give us on a future thermal insulation of this house, not the walls, only the roof.”

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Insulating a new roof

Insulation – To answer your question it is important to understand that not all insulation products are equal in terms of, price, performance, availability, and suitability for all application areas.

Yes, I too used to think insulation was simple to understand.

Insulation comes in all sorts of mediums and materials. Some are cheap or free and some are expensive and only work in certain situations.

Now let’s get to the specific question.

If you are going to only use the roof/ loft area as a store I would suggest using any of these products but only after the woodworm in the roof spars, purlins and joists have been properly treated and any broken roof tiles replaced.

Rockwool / Earth wool attic insulation.

Expanded-cork-granules (a Portuguese product)
http://www.kay-metzeler.com/

Prowarm Backer-Pro Insulation Board

https://www.prowarm.com/products/insulation-boards