Both corrugated and standing seam metal roofs can last for decades or even a century. Made from dense material, reinforced with acrylic coating, and can withstand multiple hailstorms, metal roofing materials are virtually infallible. However, at some point, they will need complete metal roof replacement.

When it comes to heavy-duty roofing material such as metal roofs, you’ll need the right tools and equipment for the job. But before you do, it pays to know whether it’s time to perform a metal roof replacement. It’s possible it still has some life left in it, which can save you much in the process.

Hendrick Construction Inc has a great post on identifying the correct signs your metal roof is in trouble and needs replacing.


Metal roofs are virtually maintenance free, but if they are not properly installed or they become damaged by severe weather, they may need professional repair. If you see signs of damage or degradation in your metal roof, contact a roofing installation and maintenance professional who specializes in metal roofing.

Metal Roofs Are Durable and Long Lasting

Steel roofs typically last a very long time compared to other roofing products—an average of 40–70 years (for comparison, the typical lifespan of asphalt shingles is 12–20 years). One of the reasons for their longevity is their durability: they are able to withstand winds of up to 120 mph and are very resistant to impact from hail and other debris.

Residential metal roofing is made of 24- or 26-gauge rolled steel sheets covered with a metallic, rust-preventing coating and a baked-on paint finish. Steel roofing products can be coated with either zinc (referred to as “galvanized” steel) or a mixture of aluminum and zinc (called “galvalume” or “zincalume”). This “stone-coated steel roofing” has the beauty of slate roofing with the durability of metal.

Metal roofing is not impervious to damage, however. Storms with extremely high winds, high-velocity debris, or hail can dent or damage panels. Inspect your roof yourself or call a roofing professional to perform an inspection after severe weather occurrences.


Now, there are two types of metal roofs. Corrugated metal roofing has a different set of instructions for replacement, but most Brampton property owners can DIY tear off and replace their corrugated metal roofs with the right tools and instructions.

Do It Yourself has an awesome and detailed instruction on how to replace corrugated roofs. Included is a list of tools and equipment you’ll need.

How to Replace Corrugated Metal Roofing

What You’ll Need

  • Corrugated Metal
  • Roofing Shingles
  • Roof Flashing
  • Ladder
  • Metal
  • Nail Gun
  • Nails
  • Claw Hammer

Corrugated metal roofing is designed to last longer than a traditional asphalt roof. There are some steps that you need to follow when performing this task of replacing a corrugated metal roof. Any type of roof replacement, whether it is a corrugated metal roof or an asphalt roof, involves some level of risk. This is important to mention and be aware of because you need to make sure that you work carefully and safely whenever you are working above the ground.

If possible, you should work with an assistant or colleague who is as if not more knowledgeable about corrugated roof installation. This will ensure that the repair will be done right and that you will avoid any undue harm or serious injury as a result of the roof replacement. This article describes the steps, including the tools and materials needed to replace the roof.

Step 1: Purchase Materials for Replacement of Corrugated Metal Roof

Go to a home improvement center, or other retailer that sells roofing materials, and purchase the roofing shingles or panels for your corrugated metal roof. The installation of these panels should be similar to the installation of an asphalt shingle roof except for the fact that the corrugated metal shingles are heavier that the asphalt shingles.

Step 2: Remove the Old Corrugated Metal Roof

With a claw hammer remove the old corrugated metal roof. Work from the top of the roof to the bottom in order to pull up the shingles and stack them on the roof. Because the corrugated metal shingles are heavy, work carefully and do not throw any of the discarded shingles to the ground, in order to prevent anyone below from getting hurt or causing any damage. (Continued Here)

Before we continue, here’s a quick instruction (or reminder) on how not to tear off your metal roofs. It can be dangerous not just to your property, but to your personal wellbeing as well.

Now, let’s proceed on how to remove and replace standing seam metal roof. Metal roof replacement for more dense metal material can be dangerous especially without the right tools. In fact, you may need some additional manpower and assistance to accomplish these steps from Metal Roofing Systems.

How to Install a Standing Seam Metal Roof – DIY Guide

This instructional guide is based on Fabral’s nailing-strip standing seam system, with 1″ ribs. Before you actually go ahead and order any panels for the job, we recommend that you thoroughly read this guide, and watch the video below to get a better idea of just how involved this can be.

Before you take on the installation, be sure to watch the video above a few times so that you have a very clear picture of what is involved in the installation process, and see whether you really want to tackle such a big project on your own.

General considerations:

When installing a standing seam, it is strongly recommended that all asphalt shingles are removed before the installation in order to prevent / avoid the “telegraphing effect” where horizontally installed shingles punch through the vertical sheet metal roofing panels, causing unsightly dents that cannot be fixed / removed.

Also, since most standing seam roofs installed are made out of steel, the granular surface of asphalt shingles will rub against underside of the metal roofing panels, and thus will likely scratch through the paint and galvanized layer, which could cause metal panels to rust from underneath.

Measuring basics:

When ordering materials, it is important to correctly measure the length of your panels, so that you don’t end up with panels that are too short and unusable! 😉

Measure the vertical run from the eave of the roof, all the way up to the ridge line, and order your panels at least 2 inches longer than the length of your gable / roof run.

These two extra inches will be used to form a drip-edge hem. Note that a typical standing seam drip edge extends 1 inch beyond the eave, and that you will need to make a reverse hem in order to lock the panel into the eave starter. – That’s where the two extra inches come into play.

Steel or aluminum?

In my opinion, aluminum is a much better choice of material compared to steel, when it comes to standing seam metal roofs.

Aluminum will not rust, and is the safest option to install in coastal areas. While most architectural steel standing seam roofs are made with high quality coated steel (usually Galvalume or G-90 galvanized steel), there is still a chance that you may place a few deep scratches onto the panels and it will eventually rust.

While aluminum is more expensive than steel, I think the price difference is well worth it, especially if you happen to live near the coastline or marine environment.

A note to Homeowners and First-time Installers: (Continued Here)

Remember, if you attempt to remove and perform metal roof replacement on your own, heed all the safety guidelines that contractors abide by. In addition, some metal roof manufacturers may choose not to honor their warranty if your replacement procedure does not conform to their standards.

However, to make sure it does, you can work with a reputable roofing contractor. Brampton Roofing is Brampton’s premiere roofing contractor with more than 10 years of experience handling complete tear offs and metal roof replacement. Contact us today to allow us to replace your metal roof quickly!

Click here for all the metal roofing services we provide in Brampton