Moisture in the structure of the roof may be the result of condensation caused by temperature variations, water infiltrations through the roof and humid air that comes from the interior living space and crosses the ceiling. It is virtually impossible to protect the roof structure 100%, and that is why regular check-ups and maintenance operations are necessary.
At the right temperature, humidity reduces the efficiency of the insulating material and provides good conditions for mold formation and development on the roof cover as well as on its wooden parts. This reduces its resistance, makes it vulnerable and ultimately breaks it down. At the same time, wet wood attracts insects. In the worst case, the affected wood structure of a roof can degrade in just a few years. Appropriate ventilation of all parts of the roof is therefore essential to keep it dry and durable.
Tips
- The entire structure of the roof must be ventilated - not just the empty space between the cover and the deck
- If you use anti-condensation foil with higher vapor permeability, you are still not allowed to ignore the ventilation layer between this foil and the thermal insulation
- A larger number of small ventilation spaces is preferred instead of a smaller number of larger ventilation spaces
- Roofs with attic windows or skylights require individual ventilation solutions placed above and below the space allocated to these accessories. Find the right roofing specialist at https://www.roofonemichigan.com/ to help with the individual needs of your home's roof.
Original Post on: What Happens When Your Roof Sees Too Much Moisture?
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