Flat Roof Extension - Drainage Query


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Old 02-04-10, 03:00 AM
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Flat Roof Extension - Drainage Query

Hi,

Just had a query regarding drainage on a flat roof kitchen extension. The house is semi-detached. Recently the neighbours have also installed an extension which meant changing our drainage slightly.

Now we have the drainage pipe running in between the houses and then a pipe running into the middle of our roof. Effectively the water from both house ends up on our roof.

Is that normal for the drain to finish half way on a roof without being drained off anywhere. If any water stays on the flat roof will it simply evaporate or is it likely to cause long term problems. Any help appreciated.

Thanks
 
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Old 02-04-10, 04:14 PM
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It doesn't sound right to me but it would be help if you could post some pics to photobucket.com
 
 

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