What to note about a wooden roof structure

Pay attention to the structure. Are these still intact or have they been modified? Focus on the main lines. Important terms to remember are trusses, purlins, rafters, and tie beams.

The roof, purlins, and truss structure isn't always fully visible from the inside, so a thorough inspection isn't always possible. Visually, the entire structure can be inspected for soundness and structural safety, to the extent possible. This allows for a partial search for features, deviations, and changes that could lead to or indicate deviations or defects behind the finishes and/or paneling.

Changes may have been made to the structure. These changes may not have been carried out professionally, meaning the structure can no longer be considered sound. For structural changes or improvements, it's best to engage a qualified contractor.

Traces of active woodworm may be found in the roof structure. Woodworm can further damage the beams and even weaken the structure at some point. Treatment requires specialized work and is best left to a qualified specialist. In the case of active woodworm, we recommend taking the necessary action as soon as possible. Also, get more information about the options for (preventative) woodworm control and prevention.

Traces of inactive woodworm may have been found in the roof structure. These may no longer be active or may have already been treated in the past. It's also possible that the woodworm has left "naturally" due to changed conditions in the space. Further steps are not immediately necessary with inactive woodworm. Recognizing active or inactive woodworm is simple: if you see yellowish sludge in the holes, the woodworm is often active; if you see dried-out black holes, the woodworm is likely inactive.

• Woodworm is a name for various insect larvae that live in wood.
• If woodworm has been noticed, it cannot be ruled out that other wood-destroying insects (such as a longhorn beetle) are also present, although these are less visible.
• If woodworm has been noticed, it cannot be ruled out that it is also present (to a greater or lesser extent) in other wooden parts elsewhere in the house.
• Woodworm eggs can hatch and become active up to seven years after being laid! Therefore, vigilance is always advised.
• If complete certainty is required, it can be considered to involve an expert exterminator for a full inventory.
• If you suspect wood-destroying pests in your home, are aware of any risks, or would like more information or certainty, please contact us for a full inspection .

• We always recommend follow-up investigation and treatment of this condition.
• Dry rot can also have negative consequences for health.