Slate Roof Ventilation Requirements

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.

Slate roof ventilation requirements. As you noted slate roofs tend to allow air movement through the slates. Ventilation openings shall have a least dimension of 1 16 inch 1 6 mm minimum and 1 4 inch 6 4 mm maximum. Slate vents are by far the easiest professional solution to roof ventilation problems. Near ridge of the roof.

To provide ventilation opening points can usually be provided on the following areas of a pitched roof. Based on your 1100 sq. Eaves soffits and fascias. And this guideline you ll need a minimum of.

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. Matthias in my judgment you can skip the ridge vent. 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. Moreover slates are vapor permeable so moisture problems at the sheathing layer are highly unlikely.

The ventilation requirements may vary based on the circumstances of the building.