Proper Roof Framing

Designing the roof 1.

Proper roof framing.

Choose the roofing material. Common types of roofs and basic framing terms. In high wind areas sheathing along the eaves rakes and ridges is nailed every 6 in. Roof sheathing is nailed every 6 in.

It is the form most commonly used by the navy. If you want to frame a roof you ve got two important choices to make in terms of design. The american plywood association says there s no reduction in strength for nails overdriven by 1 16in. So i ll start by saying something that might sound controversial but really isn t.

Choose the design of the roofing trusses. If your project had a rafter length of 8 or less a safe and strong method is to use 2x8 framed 16 on center. Depending on the roof design and the roof rafter spacing. Gable a gable roof has a ridge at the center and slopes in two directions.

Add the length of the overhang beyond this mark and. Measure form the top of this line down the board to determine the line length or length of the rafter less the ridge. Start with a layout of a rectangular shape building. Position the square at the end of the rafter board with the tongue on your left and facing away from you.

Construction accidents occur in the thousands every year. Along the edges and every 12 in. Shed roof framing process explained step by step instructions safety first. Now draw a 45 degree line from each corner toward the centerline that can help to establish location specifications for.

The framing style of the roof refers to the actual components of each. Understand the different measurements. Draw a ridge line between the intersection points of the hip rafters. For building trusses use 2 4 lumber and make the gussets from plywood.

Whether stepping on a nail twisting when. As a general rule roofs that have a high human occupancy rate should be framed with rafters every 16 structures such as sheds or barns can be frames with rafters every 24 again make sure to consult local codes. Choose a style of roof. A vented attic where insulation is placed on an air sealed attic floor is one of the most underappreciated building assemblies that we have in the history of building science.

Types of roofs the most commonly used types of pitched roof construction are the gable the hip the intersecting and the shed or lean to. It is simple in design economical to construct. An example of each is shown in figure 2 1. For vaulted or cathedral roof construction provide a free ventilation path from eaves to ridge between all rafters.

So much information has been devoted to the subject of roof venting that it s easy to become confused and to lose focus.