BENSON AH150 - Page 18

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Not less than
I
600
I
Not Less than
250
Fig 13. Flat roof, with no parapet
All dim e n~i o n s are in millimetres.
Not Less than
600
Structure
Fig 14. Flat roof, with structure close to flue outlet
All dimension s ar e in millimetres.
600
Not less than
Not less than
600
Fig 15. Pitched roof, not greater than 45°
All linear dim ensions are in millimetr es .
Dormer window
Fig 16. Pitched roof, within 1.5m of a structure on roof
All dimensions are in millimelres.
Not less than
600
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