Moreover slates are vapor permeable so moisture problems at the sheathing layer are highly unlikely.
Slate roof ventilation requirements.
Based on your 1100 sq.
The ventilation requirements may vary based on the circumstances of the building.
To comply with the code of practice for control of condensation in buildings bs 5250 2011 a1 2016 and the nhbc roof vents should be installed at both the eaves and ridge level.
How many slate roof vents do i need.
Slate vents are by far the easiest professional solution to roof ventilation problems.
And this guideline you ll need a minimum of.
Slating and tiling for pitched roofs and vertical cladding code of practice recommends that roof ventilation be provided in accordance with bs 5250.
As you noted slate roofs tend to allow air movement through the slates.
They are super easy to fit either for new roofs or renovating an existing one.
To provide ventilation opening points can usually be provided on the following areas of a pitched roof.
Near ridge of the roof.
Ventilation openings shall have a least dimension of 1 16 inch 1 6 mm minimum and 1 4 inch 6 4 mm maximum.
Matthias in my judgment you can skip the ridge vent.