Resources

Metal roofing technical library

Straight answers on standing seam panels, sheet metal trim, paint systems, gauge and edge-metal code — written by the shop that roll-forms the panels in Sherman and Plano, Texas. No registration, no gated PDF, no sales call attached.

7 articles
Installation7 min read

Oil canning on a metal roof: causes and what actually reduces it

It's waviness in the flat of a panel. It is not a defect, it is not grounds for rejection, and there are real ways to keep it from showing.

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Materials & Finishes6 min read

Kynar (PVDF) vs SMP: which metal roof paint system to specify

Both are baked onto the coil before anything gets formed. The difference shows up in year eight, not on install day.

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Materials & Finishes5 min read

24 vs 26 gauge metal roofing, and Galvalume vs G90

Two separate decisions that get talked about as one. Thickness is a stiffness question. Substrate is a corrosion question.

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Panels & Trim6 min read

Snap-lock vs mechanical seam standing seam panels

Both are concealed-fastener standing seam. What differs is how the seam closes, and that decides slope range, wind performance and labor.

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Panels & Trim6 min read

Metal roof trim and flashing types, and what each one does

Six shapes cover most of a standing seam job. Knowing which is which — and which dimension actually matters — makes ordering a lot faster.

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Code & Standards6 min read

ES-1 and GT-1: edge metal requirements an inspector will ask about

Perimeter edge metal and gutters on low-slope roofs have to be tested assemblies, not just the right shape. Here's what that means when you order.

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Ordering4 min read

How to measure and send a metal trim profile that runs right

Leg lengths, bend direction, which side takes the paint, and where the hems go. Get those four right and it runs clean.

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Can't find it? Ask the shop.

If it's a question about metal, gauge, finish or a detail, someone in Sherman or Plano has probably answered it before. Email the shop — no charge, and you don't have to be buying that day — or price the job straight in the calculator.

Email orders@roofcoil.com Price a job