Some will choose to keep their pre existing flat roof on their structure underneath the new pitched roof to save removal costs but others might not be able to consider that option.
Convert flat roof to pitched roof before and after.
The process for converting a flat roof into a pitched roof depends on your individual structure and your individual needs there is no one size fits all option.
There are several ways to convert a flat roof to pitched.
On houses new pitched roofs typically are supported by the exterior walls as with standard sloped roof construction.
It is a significant renovation if you are converting from flat to pitched.
Flat roofs also don t last as long.
They last 25 50 years while a flat roof membrane will last about 15 20 years.
A flat roof also can add distinction to a home making it stand out among the horde of gables and hips in the neighborhood.
The decision to convert a flat roof to pitched should be carefully considered.
This is because the membrane is more expensive to manufacture as well as the need for more specialized labor.
Expense is a big one and pitched roofs have their own issues with maintenance and leakage no roof is perfect.
Flat roofs are about 10 20 more expensive to install than a pitched roof after the conversion.
A pitched roof is more expensive.
Depending on the climate your flat roof will only last between 15 and 30 years if well maintained.
You can install a shallow pitched roof over your existing flat roof add a trussed ranch style roof to convert to cathedral walls or even build a new floor and install the pitched roof above that.
The typical way is to remove the existing roof and add new framing to the home that create a pitched roof over the old flat roof area.