Steel Roof Rafter And Ridge Connection Detail

Refer to the rain carrying table in this booklet for the maximum allowable panel length per slope that will provide adequate drainage.

Steel roof rafter and ridge connection detail.

Choose a ridge board that is one size larger than your common rafters. Some of these can support the roof and prevent ridge sagging and wall spreading. The ridge board is non load bearing and merely provides the point of connection for. The ridge board s length will be the outside measurement of the building plus the length of the overhang at both ends.

A ridge board is a non structural member that serves as a prop for opposing rafters to rest against and connect to. One of a series of diagonal members of the truss that meet at the apex in order to support the roof deck and its loads. For longer slopes and lower roof pitches contact fabral for other suitable profiles. The rafters carry the applied loads to the exterior walls.

In a rafter roof all of these components are required to provide a stable roof. Rafters act more like the top chord of a roof truss than as a roof joist. For 2 x 4 rafters use a 2 x 6 ridge board. Collar ties rafter ties tension beams structural ridge beams.

Ridge beam sizing is based on the span of the beam between supports and the amount of roof load supported by the beam. Refer to the rain carrying table in this booklet for the maximum allowable panel length per slope that will provide adequate drainage. Roof truss parts explained. Roof pitch the metal roofing panels shown in this manual require a min imum slope of 2 ʺ per foot to ensure proper drainage.

For longer slopes and lower roof pitches contact fabral for other suitable profiles. This article describes and illustrates the different types of support that prevents roof sagging and wall bulging at buildings including definitions of collar ties rafter ties and structural ridge beams. Ridge boards can only be used in roofs with slopes from 3 in 12 up to 12 in 12. For 2 x 6 rafters use a 2 x 8 ridge board and so on.

R4 heel joint connection detail r5 ridge member connection detail r6 ridge member with coped 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. Horizontal beams supported by posts and used to support the mid span of rafters to cover longer spans these are used in large buildings like the traditional large old barns in the us. The function of each component is.