The purpose of the purlins is to provide a solid foundation for the metal roofing panels and trim to be screwed to.
Steel purlin flat 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.
A corrugated metal roof is quieter than pvc when it rains.
Dead load will be the actual weight of the roof steel and the roof purlins.
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.
Do all roofing projects require purlins.
Steeline c purlins are available in different sizes and material strengths to match the design specification of your building.
Panel materials include stainless steel aluminum and.
Steel purlin is a direct replacement for wood purlin.
Flexospan steel buildings inc.
Snap a chalk line horizontally across the roof two feet down from the top.
A purlin is a roll formed structural section.
Fasten the purlin with 16d common nails into each vertical rafter.
They are light weight dimensionally stable accurate and straight.
Modern galvanized steel or aluminum is resistant to rust and can easily last up to 100 years.
Steel purlin is usually made of cold formed steel that is thin enough to put screws through.
Lay the first purlin at the ridge of the roof down to the chalk line beginning at either corner.
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.
Metal panels are much more durable than asphalt shingles so you won t need to repair or replace your roof as frequently.
It is roll formed out of flat sheet steel.
We can also supply them un drilled or with pre drilled holes at 18mm diameter small hole sizes available on request.
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.
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.
A bunch of rollers shapes the flat sheet into the specific purlin shape.
They expand and contract reasonably in extreme temperature changes.
Our full range of thickness available for z purlins are.
Engineered purlin metal mart offers a complete line of engineered purlin material.
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.
