roof pitch

Old 05-28-02, 05:52 AM
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Question roof pitch

I am replacing a glass roof on a brick conservatory with a pitch roof using tiles.
It is difficult to create much pitch or slope and I am nervous about water ingress if the pitch is not high enough. Is there a minimum I can work to or a way of calculating what it should be?
Old 06-02-02, 09:36 PM
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Minimum pitch for tile roof

4:12 (19 degrees form Horizontal) ROOF TILE TECHNICALDATA. Technical Data. Columbia Roof Tile. Retrieved 02 June 2002.

Calculating roof pitch:

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