If the materials to be used will change the appearance of the building or the works are to a dwelling roof in a conservation area planning permission is required.
Planning portal roof.
Any alteration to project no more than 150 millimetres from the existing roof plane.
Flat roof this usually consists of felting which has a slight fall to allow rain water to drain off.
They do not protrude more than 150mm beyond the plane of the roof slope they are no higher than the highest part of the roof.
To enable compliance with the requirements of the building regulations to be demonstrated full details of the new roof will be needed including.
About planning portal adverts if you want to carry out repairs on or re cover less than 25 per cent of the area of a pitch or flat roof you will not normally need to submit a building regulations application.
In most situations this work will need building regulations approval.
You carry out structural alterations.
Pitch roof this is where tiles or slates are used and a void is usually created underneath.
About planning portal adverts after a period of time the roof on existing buildings will need to be replaced.
Planning permission building regulations new roof lights or skylights will not normally require an application for planning permission providing.