Roof or ceiling diaphragm.
Flat or vaulted ceiling with gable porch roof.
A gable roof is a heavy structure and if you want to prevent your roof from collapsing you ll have to frame the structure correctly.
The two roofs meeting that description are the hip and the flat roof.
And on a shed roof.
How to frame a gable roof with no ceiling.
The gable roof is loved for its vaulted ceiling and beautiful lines.
Compare a gable roof with a flat vs cathedral ceiling.
And that is why these are the most common rooflines you ll see on porch company porches.
A gable roof creates a vaulted ceiling from the inside.
A vaulted ceiling in one part of your house may create an attic space elsewhere that s isolated from the rest of the attic.
Here is the challenge.
Indeed the ceiling finish is typically attached to the rafters.
Vaulted ceilings can be constructed by either stick framing which means attaching each joist and rafter individually or by setting roof trusses that come engineered from a truss manufacturer.
By contrast an open concept great room built with ceilings only 8 or 9 feet high can feel tight dark and airless.
Gable ceilings are also available in attic spaces of homes with triangular rooflines.
When the end wall is constructed such that the top plate is level with the exterior walls there is no diaphragm at the intersection of the wall and a flat bottomed gable truss see photo in figure 1 above.
Unlike common flat ceilings cathedral ceilings are angled with a slope that follows the bottom of the roof rafters.
Let s talk about the pros and cons of each of the four most often used roofs.
Instead of the flat ceiling the triangular pitch of the roof becomes the gable ceiling.
Gable ceilings are created when the builder or homeowner does not install a flat ceiling in a single story home with a triangular roofline.
Gable hip shed and flat.
The new attic plan needs to provide access to each part of the attic.
Structurally cathedral ceilings differ dramatically.