The flat roof already has a slight pitch as it is required by law.
Remove pitch roof and make flat roof.
19 00 32 00 siding and roofing materials installed.
Finally finishing touches such as gutters and exterior siding will be added.
A pitched roof is more expensive.
Adding trusses to a flat roof alone is time consuming not to mention costly.
Various styles of a pitched roof can be built or you can purchase pre manufactured trusses.
There are a few ways to dealing with a pitched roof if you choose to convert to a flat roof.
Removing roof material and cutting the roof deck.
Depending on the climate your flat roof will only last between 15 and 30 years if well maintained.
A 900 square foot flat roof in the san francisco area made of concrete tiles costs.
Once these decisions are made your flat roof will be removed or not and the carpentry work will commence.
After the new space is framed or trussed the pitched roof can be installed and any necessary hvac or interior renovations can be concluded.
50 00 110 00 the higher cost per square foot to frame side and roof dormers compared to additions is due to their smaller size.
However flat roofs require much more aggressive and consistent maintenance than a pitched roof.
You can tear off the existing roof remove the trusses and strengthen the joists.
According to improve net s online roofing calculator a flat roof is significantly cheaper than a pitched roof.
3 25 4 50 framing the dormer.
This has to happen whether you re just removing the pitched roof or adding another floor with a flat roof.
According to the international building code the typical built up flat roof that uses tar or asphalt goes by the guideline that for every foot 12 inches of a flat roof a minimum of inch must step up or down.
Flat roofs also don t last as long.
15 00 20 00 finishing the interior.
Anyone who wants to know how to make a flat roof have a pitch would somewhat assume that the job is tedious.
You will need to ensure that you are in standards with your local building codes and have the permits required.
It is a significant renovation if you are converting from flat to pitched.