Soil pipe ventilation Drainage and wastage systems and plumbing help, advice and answers

[Holywood]

We have extended the width of our house so that the external gable wall waste pipe is now internal. For reasons connected with the potential entry point in to the new loft floor of a soil pipe extension it would be easier for us to divert the waste pipe under the new loft floor and ventilate to the new gable wall. Is there anything which dictates that the soil pipe must be ventilated vertically or is a bend acceptable please? The pipe would need to be extended horizontally about 14 feet. Help appreciated. Thanks

[stoneyboy]

Holywood,
No reason why not just make sure the pipe has a fall away from the vent.
end

[Holywood]

Sorry Stoneyboy, just got this. Thanks for your reply.