Framing For A Metal Roof Detail

And the line length measurement from the roof peak to the building wall is the hypotenuse.

Framing for a metal roof detail. Rafters act more like the top chord of a roof truss than as a roof joist. The open frame substrate uses wood or metal framing members such as bar joists or min. The rafters carry the applied loads to the exterior walls. The framing style of the roof refers to the actual components of each roofing truss and the design of the structural foundation of that roof.

Skillion shed style roof framing. Partially these will depend on the style of roof you ve selected but you ll also have some wiggle room depending on the design elements of the house. After reviewing the framing and components that make up your building system. The run or half the building span is the base of the triangle.

The function of each component is. These members may be individual pieces of wood formed steel or truss like members built from multiple individual pieces. Roof pitch the metal roofing panels shown in this manual require a mini mum slope of 2 per foot to ensure proper drainage. The rise or height of the roof at its peak is the altitude of the triangle.

The trim and roofing sheet should be fastened every 12 to 24 inches along the gable edge. The skillion and shed style roofs are framed with a single slope 2 4 or 2 6 or thicker rafters spanning from the low wall to the high wall. In a rafter roof all of these components are required to provide a stable roof. If you plan to have eaves to protect the shed walls make sure you add the extra length when measuring the rafters.

R7 roof eave and soffit detail r8 rafter and joist bridging r9 collar tie at rafter detail r10 rafter brace connection detail r11 roof framing with wood tail extension r12 wood truss bearing on steel wall r13 collector block detail r14 non aligned roof wall framing r15 hip beam miscellaneous. 16 gauge purlins to secure the metal roof panels. Refer to the rain carrying table in this booklet for the maximum allowable panel length per. The standard features that make up your metal building system from general steel are second to none when measured on the basis of material quality and ease of construction.

Needed to tie the roof together where the rafters are framed at an angle to each other.