View our photo gallery

Onsite Rollforming

Onsite Rollforming

Rollform up to 250’ long panels right onto the roof using McElroy Metal's jobsite production program.  Factory personnel use on-site equipment to produce continuous length panels from eave to ridge.  Single piece panels improve weather tightness and greatly reduce jobsite labor. As an added bonus, architects design efforts aren't limited by manufacturing and delivery capabilities.

View Related Files
Click image to enlarge

Jobsite Roll Formers

McElroy Metal offers two distinct options for on-site forming. High Roller, housed in Houston, Texas features a scissor lift that is capable of reaching eave heights up to 30 feet and slopes up to 5:12.

McElroy also offers other jobsite productions systems that feature roll formers with lifting platforms.  The roll formers and platforms are hoisted to the roof or eave with jobsite forklifts (provided by customer).  These jobsite production systems offer greater flexibility and are easier to maneuver than the scissor lift system.

The following McElroy Profiles can be roll-formed onsite:

Maxima 2"
Maxima ADV

Specifications & Details

Reservations McElroy will reserve jobsite production equipment for your projected installation dates and have machine, materials and forming technician on-site as instructed.
Estimates McElroy provides a detailed analysis of all applicable costs associated with jobsite roll forming so there are no surprises at any point of the project.
Jobsite Requirements Customers provide forklift or crane with operators in addition to one laborer per 15' of rolled panel. Contact your McElroy Representative for compete details regarding onsite rollforming.
Testing Data Jobsite production equipment provides an exact match with McElroy factory-formed profiles so all existing testing and classifications apply.
Panel Options
Panel Options - 138T
- 238T
- Maxima 2"
- Maxima ADV

Related Files

Get A Submittal Package

Customize your submittal package

Click on your desired documents below to select them for your package.

General Product and Warranty Information


Unlike asphalt shingles, which need to be replaced every 12-20 years, metal roofing can last up to 60 years with very little need for maintenance. For many homeowners, a metal roof is a true “one and done” solution they won’t have to worry about replacing in the future.

Learn More

Metal roofing actually reflects much of the sun’s heat and energy. While conventional shingles absorb much of the sun’s heat, metal roofing can actually reduce cooling energy costs by as much as 20%. That’s because the coating used on modern metal roof panels incorporates special pigments that reflect the sun’s energy and release heat that is absorbed throughout the day.

The odds of a lightning strike hitting a metal roof are the same as any other roof, regardless of material. In the event that there is a lightning strike, however, metal roofing will not ignite and catch fire since it is not combustible.

Read More

Far from it. Studies conducted by the Insurance Institute for Business & Home Safety (IBHS) have found that metal roofing is far less likely to be punctured by hail than conventional asphalt shingles, withstanding even golf ball-sized hailstones with only cosmetic damage.

Metal roofing consistently outperforms shingles when it comes to resisting harsh elements. In addition to being fire and hail resistant, metal roofs are also effective against extreme winds. Many insurance companies recognize the durability of metal roofing, offering discounts for structures with metal roofs.

A class 4 roof is an impact-resistant roof and will perform will when exposed to hail.

Learn More

Get our best tips and tricks for how to measure a roof for metal roofing.

Learn More

Metal roofing is an energy efficient, environmentally friendly roofing material that offers cost savings and a long lifespan.

Learn More

It is safe to walk on a metal roof. Get answers to the most common questions about how to walk on metal roof tiles.

Learn More

Yes! Get four reasons why they are.

Learn More

Asphalt saturated, roofing-tar paper, or synthetic?

Learn More

Yes! Solar panels and metal roofing are a great match!

Learn More

Oil canning is something you see when a metal panel appears wavy or distorted.

Learn More

Yes! Installing metal roofing over existing shingles is often an excellent way for building owners to not only get a long-lasting, high-performance roof but also to save on roof tear-off expenses. However, sometimes tearing off the existing roof is a necessary step. Please click the link below for more information.

Learn More
Read More
Weathertightness Warranties

If your project requires a Weathertightness Warranty and you don’t already have a job specific Pre-Approval Form issued by McElroy Metal, click the button below to get started.

Contact Us →

Shop Drawing Service
Shop Drawing Service

Running short of time to complete your own shop drawings? McElroy Metal can help. Click the button below to provide us some basic information and we’ll be in touch soon to discuss your project specifics.

Contact Us →

Download Shop Drawings
Download Shop Drawings

If you’re creating your own shop drawings, click the button below to gain full access to our CAD and PDF Files.

View Drawings →

Find a Distributor/Contractor Near You

Whether you’re building a new home or planning renovations, a metal roof can deliver long-term cost savings and comfort. To explore your options and find the product that meets your aesthetic and budgetary needs, contact a McElroy Metal distributor or contractor in your area today. We can’t wait to help make your dream home a reality.

Find a Contractor

Related Products

138T & 238T Standing Seam

Learn more


Learn more

Substructural Components

Learn more