Is there a maximum area of roof you can have without having guttering on it?
I'm planning a box bay window 2m x 0.6m, and having trouble figuring out how to join its guttering into the other guttering/drains. Does it need guttering?
hammer23,
May 15, 3:13pm
no,just check and see how much water does come off it. My daughters house has a simalar roof and hardly gets wet as the rain really comes from that direction.
luteba,
May 15, 3:26pm
Hmmm good idea, but a little tricky as it's yet to be built so I can't physically check. I guess I can figure the volume out with maths, but won't have much sense of what that will mean in reality.
The roof area is the same as a little back porch we have elsewhere. That porch does have guttering, but the downpipe just discharges into the garden. I think that's probably not ideal and wouldn't be at all surprised if the piles next to the downpipe have suffered as a consequence, though won't know for sure until we open up the walls and floor as part of the other work.
golfdiver,
May 15, 6:46pm
Is the Bay window under the existing eaves? Does it face the prevailing weather?
kandjaja,
May 15, 10:28pm
15m2 is the minimum
eagles9999,
Jan 8, 6:58pm
Think it varies from council to council, We built a 20sqm patio roof without a permit and also without guttering
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