Pitched roof extensions typically cost more simply because they involve more work and take longer to complete.
Pitched roof over flat roof planning permission.
Pitched roof extensions afford a more traditional look and that means they blend in better with the style of many houses.
This should be a straightforward process especially if it is a low pitch roof.
Not in all cases you need to obtain a planning permission when building a new roof.
Pros of a pitched roof extension.
Always contact your local planning authority to be sure.
You are making any structural changes to the roof.
A low pitched roof should be easy enough to gain planning permission for.
The change from a flat roof to a pitched roof is a complex renovation project so before you begin work it is important to work out whether you need to apply for planning permission.
When converting your flat roof into a pitched roof that s when planning permission may come into play.
However you will likely need to apply for planning permission as it is not a like for like replacement.
If the new roof covering is going to be different than the old one and this will affect the roof in the event of a fire.
The pros cons of flat vs.
Depending on the climate your flat roof will only last between 15 and 30 years if well maintained.
It is a significant renovation if you are converting from flat to pitched.
Converting your flat roof to a pitched roof does require planning permission as any alteration that is higher than the highest part of the existing roof requires approval.
A pitched roof is more expensive.
However when carrying out larger structural alterations this may be a little more difficult.
Flat roofs also don t last as long.
However flat roofs require much more aggressive and consistent maintenance than a pitched roof.
Is planning permission required.
Depending on why you want to replaces your roof also means that you have to comply with different rules.
This is a factor that planning departments tend to look on favourably.
You will have to obtain a planning permission if.
You do not normally need to apply for planning permission to re roof your house or to insert roof lights or skylights as the permitted development rules allow for roof alterations subject to the following limits and conditions.
Any alteration to project no more than 150 millimetres from the existing roof plane.