Primary process: Roll Forming. The full route, materials, tolerances and design tips for a roofing, with an indicative cost.
Roll FormingPrimary process
Sheet formingFamily
7Route steps
+/-0.3mmTypical tol.
A roofing is primarily made by Roll Forming. Roll forming feeds strip through a train of rollers that progressively bend it into a constant open or closed profile along its length. Below is the full route to make a roofing, the materials it suits, the tolerances to expect and the main design points. The route is free, from the finder.
Step by step
How a roofing is made
The usual route, raw material to finished part. The amber step is where the roofing gets its basic shape.
Material
Select the sheet grade and gauge for the roofing.
Blanking
Cut the flat blank, by laser for low volume or a blanking die at scale.
Tooling Low (laser) to high (die) Tolerance ±0.05 to 0.3mm Lead days to weeks
Roll Forming
Form the blank into the roofing.
Tooling High (roll sets) Tolerance ±0.2 to 0.8mm Lead 8 to 16 weeks
Secondary features
Punch or drill the holes and cut-outs the part needs.
Tooling None Tolerance ±0.05 to 0.2mm Lead hours to days
Joining
Spot weld, fasten or bond into the assembly where the roofing is more than one piece.
Tooling Medium Tolerance joint Lead immediate
Finish
Deburr the edges and powder coat or plate for protection and colour.
Tooling Low Tolerance adds 0.05 to 0.2mm Lead days
Inspection
Check formed dimensions, hole positions and flatness.
Need the real cost for a roofing? The free route above is yours. Unlock the full dossier to quote and source it.
Where this process typically lands. Tighter is possible with extra operations like grinding, at higher cost.
Materials
Materials for a roofing
Grade
Why it suits this
Galvanised steel coil
Cheap, corrosion
Aluminium coil
Light
Stainless coil
Corrosion
Design
Design tips
General pointers. The full design-for-manufacturing list for a roofing is in the dossier.
Too many tight-radius bends.Simplify the section.
Inline holes unspecified.Define punch pattern.
Cost
What a roofing should cost
Long constant-profile parts (track, rail, trim) from coil; tooled line, cheap by the metre at volume.
PER-PART COST vs VOLUME
Per-part cost drops as volume spreads tooling and setup over more parts. The exact figures for a roofing at your volume, in your currency, are in the dossier.
MODEL EST.
$0.83 to 1.8per part at 1,000 off
A rough ballpark only. The dossier gives should-cost at your exact volume and currency, with the full breakdown.
GET THE FULL DOSSIER
Everything you need to quote and source it
The free route above is yours. To actually put a number on a roofing and buy it well:
Should-cost at your exact volume in 12 currencies, with the material, processing, tooling and overhead breakdown
Who to source from, typical MOQ and lead time, and the exact RFQ checklist to send
A quote checker that tells you if a supplier quote is fair, and the red flags to watch
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A roofing is primarily made by roll forming. The route is: Material; Blanking; Roll Forming; Secondary features; Joining; Finish; Inspection.
What does a roofing cost?
It depends on size, tolerance and volume. As a rough ballpark it starts around $0.83 to 1.8 per part at 1,000 off and falls with quantity. The dossier gives should-cost at your exact volume and currency. A model estimate, not a quote.
What material is a roofing made from?
Common choices are Galvanised steel coil; Aluminium coil; Stainless coil.
What is the main process for a roofing?
Roll Forming. Long constant profiles in high volume: roofing, track, framing and trim.
See the exact route and should-cost for your part
The free finder maps your part to its process and full route. Pro adds should-cost at your volume, sourcing and an RFQ draft.
