
These vents provide 5000EA
Tested in accordance with BS EN 1026:2016 &
BS EN 1027:2016 weather performance
Independently tested to BS EN 13141-1:2004
Water tightness of 400pa
Slot Size Measured Area Equivalent Area
340x16 mm 5440 mm 5269 mm2
340x10 mm 3440 mm 3293 mm2
340x12.5 mm 4250 mm 4116 mm2
340x15 mm 5100 mm 4939 mm2
Data sheet