Connect with us

Housekeeping Tips


How To Install Metal Roofing Over Shingles – Comprehensive Guide

We’ll demonstrate how to install metal roofing over shingles in this guide. When it comes to replacing an aged roof, householders have mainly two alternatives. They may either remove the existing roof or put in a fresh bitumen roof, and they can also place metal roofs over the current shingle roofs.

how to install metal roofing over shingles

Unless construction is required, tearing off the existing roof is typically unnecessary. The most effective method is to install metal roofing over shingles. Metal roofing put straight onto your current shingles is an environmentally-friendly choice that may provide additional protection and improve the layout of your roof. Additionally, since no takedown of the existing roof is necessary, it reduces the costs of metal roofs and replacement.

Read more to learn further about metal roofs and simple installation methods.

When deciding whether or not to have a metal roof, householders must consider many expense and function trade-offs. Metal roofs seem to be more resistant to hailstorms, rainfall, and strong winds, but they’re more costly per sq. ft. However, unlike a bitumen roof, which would only last up to 20 years, a metal roof may endure up to 50 years.

Going with a metal roofing option could be helpful if your rooftop is flooding or you believe it may in the coming days, and it will provide you with years of comfort. So, strictly pragmatically, productivity triumphs over expense. Let’s get into how to install metal roofing over shingles.

How To Install Metal Roofing Over Shingles – All You Need To Know

The central concept behind a metal shingle arrangement is to attach shingles to a preexisting felt or wooden framework that conceals the bitumen shingles. It allows you to prevent removing your existing roof.


Obtaining a precise measurement can assist you in determining the exact quantity of material required. Tiny frames are placed in parallel rows, allowing you to conduct a rough estimate of how many structures you will need to perceive the actual roof area. You must estimate and account for valleys, dormers, and fireplaces on your roofing. If you’re building a seam steel arrangement, you’ll need to consider every side of the rooftop.

Spread out roof felt on the surface

The purpose of the roof felt is to keep all as level and square as feasible, and it might need wooden boards. Also, remember that bridging will be required for rooflines, fireplaces, and any other conceivable seam wherever water is an issue. The critical thing to remember here seems to be that you want a perfectly square, great design even without the possibility of water leaks later on.

If you are interested: Read serious signs of water damage on ceiling here.

Begin to install the metal paneling

Start straight and maintain the edges directly. Maintain as much square and symmetry geometry as feasible. It holds for sliding the screws in a single direction, and they get used to having the metals in place. The screws may get installed on the smooth roof surface or the elevated slopes. So, the more straight they remain, the simpler it’ll be to fix the material.

Note: The troughs must carve manually when you install the sheets. You can pre-measure carefully and place them when you need it, or you could snip the panels tight, leave out a few fasteners, and then return later.

Also, take care not to damage the metal’s colorful surfaces. Scratching the metal today may result in corrosion or other issues later.

Put in rubber pieces

While dealing with any overlapping, you must place foam or foamy sealing pieces that suit the contour of the metals to stop flooding from infiltrating during intense rainfalls or snowstorms. You may also set out and apply foam straps to any water outlets, and the purpose here is to avoid further water ingress.

Connect the ridge

The next stage is to connect the ridge cap, which requires closures to prevent leaks. Another alternative is to affix a mesh to enable airflow, resulting in a ridge vent; implementing these fundamental stages will outcome in a sturdy, long-lasting roofing system.


Operating on a rooftop is always a highly hazardous condition. Therefore, never jeopardize your safety if you do not have much proficiency working in higher locations. You may consider hiring an expert rooftop worker.


Metal shingles come in various colors, shapes, and lengths, and there are several appealing possibilities for householders. It’s because they are made by taking enormous flattened rolls of colorful metal inventory and bending them using a massive machine. It’s easy to construct a dramatic-looking rooftop in several circumstances because of the parallel lines and no noticeable overlapping seams.


After, How To Install Metal Roofing Over Shingles, let’s talk money side of things. On average, the expense of metal roofing will be double that of a new bitumen roof.

  • Stone-coated shingles range in price from 150 to $300 per 100 sq. ft. with labor charges ranging from 150 to $350 per 100 sq. ft.
  • Painted metal panels cost between 100 and $200 per 100 sq. ft., with labor charges ranging between $100 and $600 per 100 sq. ft.
  • Standing seam metal costs range from 200 to $500 per 100 sq. ft., with labor charges ranging from 300 to $1000 per 100 sq. ft.

Because of the expert skills needed, the standing seam steel arrangement is the most costly choice for labor expenses. The painted metal panels are the most cost-effective material choice.

Bottom Line

Metal roofing is costly, so it is long-lasting. It may be the ideal alternative for homeowners from a payback on expenditure standpoint. It wants the most coverage from winds, snowfall, and rainfall. You may have a roofing system that can last up to 50 years for a higher initial investment.

More in Renovation

To Top