Adding Pitched Roof To Flat Roof

Putting aside the obvious question of that s a terrible idea why would you want to do that there are really only two ways to go about that.

Adding pitched roof to flat roof.

Flat roofing systems come with benefits and drawbacks. While that s the easiest route it s certainly not your only option. Additional valleys angles and gables can be built into converted roofs as well but adding these elements may affect your project. Blind valleys simplify framing to keep the porch roof framing as simple as possible we installed a structural ridge supported by posts at each end with the common rafters landing on top of the ridge.

Most homeowners will have a pitched home that they wish to add a flat roof addition to. This is a standard roof but for a custom one then you should build your own pitch. However flat roofs require much more aggressive and consistent maintenance than a pitched roof. Flat roofs also don t last as long.

Unlike sloped roofs flat roofs are susceptible to ponding water. If you have a high rise building converting your flat roof to a pitched one may not be applicable. You can tear off the existing roof remove the trusses and strengthen the joists. How to tie a additions roof to existing roof roof additions to existing roofs how to construct a roof from an exsisting shead how to change a roof line how to attach a deck roof to existing roof how to add a roof over porch attach shed roof to house adding a roof to screened in porch adding a roof to existing adding a roof.

If both of the roofs are flat then they will normally butt up against one another however the problem with flat roofs is that there will always be a weakness down the center of the join. Various styles of a pitched roof can be built or you can purchase pre manufactured trusses. This will be an indicator of the roof s ridge. You either have to raise the height of the eaves or lower the height of the ridge.

To get rid of ponding water problems. It is a significant renovation if you are converting from flat to pitched. Roof trusses are pre manufactured and are delivered to the construction site with a pre estimated pitch. Depending on the climate your flat roof will only last between 15 and 30 years if well maintained.

Most homeowners choose to convert a flat roof to a pitched one using a simple trussed roof with two angled planes. You will need to add an overhang that is measured from face board. A pitched roof is more expensive. There are a few ways to dealing with a pitched roof if you choose to convert to a flat roof.

Using a pitch measuring tool that i d made we also determined that the exact pitch of the shed roof was 3 1 2 in 12.