Window sill slope

Joined
18 Jan 2006
Messages
402
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Location
Cumbria
Country
United Kingdom
I am replacing an internal wooden window sill. The original has a slope from front to back, dropping by about 15mm over about 200mm depth. Is this normal?
 
7% splay is normal so around 25mm over 200 so 1 in 8 for exterior

but no need to shed water internally
have you got a picture
 

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