Steel Purlin Flat Roof

Steel purlin is a direct replacement for wood purlin.

Steel purlin flat roof. Engineered purlin metal mart offers a complete line of engineered purlin material. We can also supply them un drilled or with pre drilled holes at 18mm diameter small hole sizes available on request. They expand and contract reasonably in extreme temperature changes. A purlin is a roll formed structural section.

Do all roofing projects require purlins. Flexospan steel buildings inc. 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. Insert two equally spaced nails into the rafter.

Steeline c purlins are an ideal product that provide long spans between portal frames on your commercial building. It is roll formed out of flat sheet steel. There are two types of purlins. A bunch of rollers shapes the flat sheet into the specific purlin shape.

Dead load will be the actual weight of the roof steel and the roof purlins. Steeline c purlins are available in different sizes and material strengths to match the design specification of your building. Modern galvanized steel or aluminum is resistant to rust and can easily last up to 100 years. In sandy lake pennsylvania manufactures and sells metal roofing and siding panels specializing in corrugated metal roofing and corrugated metal siding standing seam roof panels through fastened roofing traditional r panels a panels trapezoidal panels recessed rib and recessed channels siding.

The cos of the purlin spacing is because the load on the purlins is vertical and the purlin spacing is with the run of the roof. For sake of discussion we will assume a minimal roof snow load of 20 psf pounds per square foot and a 4 12 roof slope. Fasten the purlin with 16d common nails into each vertical rafter. Lay the first purlin at the ridge of the roof down to the chalk line beginning at either corner.

At rhino steel cladding we stock z purlins in a wide range of thickness which can be manufactured to your precise requirements up to 8m 26 25 feet in length. Purlins are non pressure treated 1 x 4 x 12 lumber that is installed on to the roof in a specific layout pattern and screw pattern. They are light weight dimensionally stable accurate and straight. Steel purlin is usually made of cold formed steel that is thin enough to put screws through.

The purpose of the purlins is to provide a solid foundation for the metal roofing panels and trim to be screwed to. Snap a chalk line horizontally across the roof two feet down from the top. Panel materials include stainless steel aluminum and.