Attic Framing Plan

Strengthening attic joists for live loads by sistering.

Attic framing plan.

Select build wall straight exterior wallfrom the menu then click and drag to draw a rectangular structure. If the unit of rise in inches is 3 then the cut is the unit of rise and the unit of run 12 inches or 3 12. Parts of a roof a ridge board is a horizontal member of the roof frame. As you can see the initial plan for framing your roof needs to take into account several key variables such as the shape of the roof and any relevant community building codes.

1 8 pitch is given so 24 x 1 8 equals 3 or unit of rise in inches. If you want your attic space to have a flat ceiling you ll need to add collar ties to the framing. Gable dormer framing adding a gabled dormer roof creates additional space and. Figure 2 2 roof framing terms.

Dormer anatomy the size of the new triple rafters and common rafters. Standard joist spacing for the installation of attic flooring materials is 16 inches on center oc meaning the distance from the center of one joist to the center of the next joist is 16 inches. Line length is the hyptenuse of the triangle whose. Line up the square with the plumb line then rotate it 180 degrees realigning the square on the other side of the.

Beyond the plans here are the details you need to provide. While you re at it some carpenters. Work out dormer details on paper figure a. Is framing a gable dormer for me.

You should be able. Location of your project type of building and its function size of the building or the type of truss span and quantity truss spacing roof pitch overhang tail or soffit width loading roof and ceiling material are we matching an. Conclusions on roof framing. Select file new planfrom the menu to open a new blank plan.

Transfers the load of the roof through the raftersto walls below. Lay out the dormer on the attic floor before. Collar ties are horizontal members that like rafter ties extend from rafter to rafter but. Start by marking the plumb line the horizontal line that marks where the wall will meet the rafter.

You will then have to choose between two very different types of roof framing stick framing vs. The point at which all the rafters are attached to. Because attic trusses require specific conditions to be met before they can be created we ll begin by drawing a simple structure that meets those requirements.