Adding Pitched Roof To Flat Roof

Various styles of a pitched roof can be built or you can purchase pre manufactured trusses.

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. Most homeowners will have a pitched home that they wish to add a flat roof addition to. Additional valleys angles and gables can be built into converted roofs as well but adding these elements may affect your project. 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.

You will need to add an overhang that is measured from face board. This has to happen whether you re just removing the pitched roof or adding another floor with a flat roof. You either have to raise the height of the eaves or lower the height of the ridge. 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.

This will be an indicator of the roof s ridge. Most homeowners choose to convert a flat roof to a pitched one using a simple trussed roof with two angled planes. However flat roofs require much more aggressive and consistent maintenance than a pitched roof. Unlike sloped roofs flat roofs are susceptible to ponding water.

Roof trusses are pre manufactured and are delivered to the construction site with a pre estimated pitch. Flat roofs also don t last as long. It is a significant renovation if you are converting from flat to pitched. 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.

You can tear off the existing roof remove the trusses and strengthen the joists. When it comes to the disadvantages some property owners are being pestered by leaks. There are a few ways to dealing with a pitched roof if you choose to convert to a flat roof. To get rid of ponding water problems.

If you have a high rise building converting your flat roof to a pitched one may not be applicable. This is a standard roof but for a custom one then you should build your own pitch. A pitched roof is more expensive. Flat roofing systems come with benefits and drawbacks.

Depending on the climate your flat roof will only last between 15 and 30 years if well maintained.