English (beta) · translation in progress — some pages still show the Dutch source.
Ventilatie en binnenklimaat

Oververhitting op zolder

Overheating in the loft is caused by direct solar load on the roof combined with limited ventilation and, often, insufficient external solar shading. West-facing roofs are particularly susceptible.

Hoofdgids · 15 min lezenVentilatie en condens bij dakkapellen
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Main causes

  • Direct sunlight on large glass surfaces without external solar shading.
  • Dark roof surface that absorbs a lot of heat.
  • Limited purge ventilation at the end of the day.
  • Insufficient thermal mass in the construction.