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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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#1
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another gutter question
Is there a recommendation for the maximum roof area to be drained by 4"
plastic gutter? Building regulations were a distant dream when my Victorian barn was built and the twin down pipes discharge through shoes onto the narrow strip of verge next to the lane. There has been some local subsidence of the foundations as a result. I am currently building a single story *end* extension and will make provision to pipe collected rainwater to an existing surface water system. However, underground piping from the original down pipes is not practicable. Could I route the barn water along the new gutter without annoying building control? The total area drained would be 35m2 in plan. regards -- Tim Lamb |
#2
Posted to uk.d-i-y
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another gutter question
I think at 35m2 you're probably ok with 4" gutter, depending on roof
pitch etc. Detailed info and tables in Part H of building regs. |
#3
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another gutter question
On Tue, 9 Jun 2009 09:08:56 +0100, Tim Lamb
wrote: Is there a recommendation for the maximum roof area to be drained by 4" plastic gutter? Building regulations were a distant dream when my Victorian barn was built and the twin down pipes discharge through shoes onto the narrow strip of verge next to the lane. There has been some local subsidence of the foundations as a result. I am currently building a single story *end* extension and will make provision to pipe collected rainwater to an existing surface water system. However, underground piping from the original down pipes is not practicable. Could I route the barn water along the new gutter without annoying building control? The total area drained would be 35m2 in plan. regards You could ring them and ask them? -- http://www.freedeliveryuk.co.uk http://www.holidayunder100.co.uk |
#4
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another gutter question
On 9 June, 09:08, Tim Lamb wrote:
Is there a recommendation for the maximum roof area to be drained by 4" plastic gutter? Building regulations were a distant dream when my Victorian barn was built and the twin down pipes discharge through shoes onto the narrow strip of verge next to the lane. There has been some local subsidence of the foundations as a result. I am currently building a single story *end* extension and will make provision to pipe collected rainwater to an existing surface water system. However, underground piping from the original down pipes is not practicable. Could I route the barn water along the new gutter without annoying building control? The total area drained would be 35m2 in plan. regards -- Tim Lamb I looked into this very recently but blow me I cannot find the websites I found a week ago, but they are there. I thought the pavingexpert site had details but seemingly not. It might well have been one of the suppliers of guttering that was helpful. You will need to hunt the details up with an appropriate search. One of the factors is whether the guttering has a fall on it not - factor of about 2:1 !! If my memory is correct something like 60m^2 if there is a fall. I know that my 35m^2 is well within spec for the change in direction I want to do but I will have to adjust the slope. I will however have to do a 1m^3 rainwater SUDS tank. Rob I would be chary about involving the BCO as he will insist on you putting in an appropriate soak away. |
#5
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another gutter question
In message
, RubberBiker writes I think at 35m2 you're probably ok with 4" gutter, depending on roof pitch etc. Detailed info and tables in Part H of building regs. Umm... I looked after posting! OK to combine two sets of guttering with a drop pipe and a shoe. For significant volumes they want some sort of discharge pipe. I guess a bend and a short length of horizontal pipe will do. Didn't find any tables. Perhaps they are in the old version. Google gave me a calculator and a list of rainfalls for various Australian cities. regards -- Tim Lamb |
#6
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another gutter question
In message , mogga
writes Could I route the barn water along the new gutter without annoying building control? The total area drained would be 35m2 in plan. regards You could ring them and ask them? St. Albans D.C. has discovered messaging services:-( regards -- Tim Lamb |
#7
Posted to uk.d-i-y
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another gutter question
In message
, Rob G writes Could I route the barn water along the new gutter without annoying building control? The total area drained would be 35m2 in plan. regards -- Tim Lamb I looked into this very recently but blow me I cannot find the websites I found a week ago, but they are there. I thought the pavingexpert site had details but seemingly not. It might well have been one of the suppliers of guttering that was helpful. You will need to hunt the details up with an appropriate search. One of the factors is whether the guttering has a fall on it not - factor of about 2:1 !! If my memory is correct something like 60m^2 if there is a fall. I know that my 35m^2 is well within spec for the change in direction I want to do but I will have to adjust the slope. I will however have to do a 1m^3 rainwater SUDS tank. I really should have Googled this before posting. There are numerous sites offering calculators. Sorry folks. regards -- Tim Lamb |
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