Roof Framing C Purlin Residential Steel Roof Truss

In post frame construction roof purlins are the members running the lengthwise direction of the building either placed on top of or between the roof trusses or rafters to attach the roof steel or other roof sheathing to.

Roof framing c purlin residential steel roof truss.

In finished space insulation is placed between the rafter boards and drywall or other material is fastened to the face. Best materials ph. Steel roof wall and floor framing is 100 per cent termite proof. Rafter boards are fastened to the ridge board at the peak and the top plate where they join the wall.

There are many types of roof trusses as wall as many types of roofs more types than there are parts. How to building frame a roof by steel frame amazing smart techniques practical implementation. Available in cee or zee shape red oxide primed or galvanized 16 14 or 12 gauge sizes from 4 up to 12 flange widths of 1 1 2 up to 4 cut to your specified lengths hole punching available load tables available for all material. Stratco steel framing range.

The boards creating the slope of the roof are wider than lumber used to build trusses 2x8s 2x10s and 2x12s are most common in rafters vs. Standard details for metal roofing siding post frame and residential structures distributed by. Steel trusses offer increased strength faster installation and a longer life compared to wood frame pole barn trusses. To the good folks in michigan the only way to construct a pole building is to place the columns every eight feet.

Metal mart offers a complete line of engineered purlin material. Spacing is typically 24 on center in low snow loads and is reduced based upon truss span and snow load. Pre welded purlin cups predrilled bolt holes and included mounting hardware for fast easy installation. Quality precision engineered metal framing trusses in a range of different configurations to suit any application from commercial to residential buildings.

The purlin are ultimately used to fasten the roof steel providing a diaphragm effect along with the siding when properly engineered and installed. The roof truss structure and design is integral to roof structural integrity and shape. Hence the length of the purlin is equal to the width of the bay i e the spacing of the trusses.