Slate Roof Ventilation Requirements

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.

Slate roof ventilation requirements.

The ventilation requirements may vary based on the circumstances of the building. How many slate roof vents do i need. Slating and tiling for pitched roofs and vertical cladding code of practice recommends that roof ventilation be provided in accordance with bs 5250. Based on your 1100 sq.

Matthias in my judgment you can skip the ridge vent. To provide ventilation opening points can usually be provided on the following areas of a pitched roof. Moreover slates are vapor permeable so moisture problems at the sheathing layer are highly unlikely. Ventilation openings shall have a least dimension of 1 16 inch 1 6 mm minimum and 1 4 inch 6 4 mm maximum.

Enclosed attics and enclosed rafter spaces formed where ceilings are applied directly to the underside of roof rafters shall have cross ventilation for each separate space by ventilating openings protected against the entrance of rain or snow. Near ridge of the roof. As you noted slate roofs tend to allow air movement through the slates. And this guideline you ll need a minimum of.

It s said that one of the best places to fit slate roof vents is normally the bottom third of a roof just above insulation level.