Is it a good idea to put metal roof over shingles?

In almost every case, the answer is yes, you can lay down a new metal roof over an existing shingle roof. This is one of the many reasons metal roofs keep growing in popularity – their installation doesn’t require completely tearing off the existing roof, which is a time-consuming and expensive job.

Can you put metal roofing over asphalt shingles?

In simplest terms: Yes, you can install a metal roof over shingles. Building officials in some areas will only allow a re-roof over one layer of shingles, while officials in other places may allow you to place the roof over two layers of shingles.

Can a metal roof go over 3 layers of shingles?

One to two shingle layers can rest safely and securely under a metal roof. Any more than two layers could reduce the stability of your roof. Many building safety codes will not allow more than two layers, so check your local areas before making an installation.

So, if your roof has two layers, it may require a complete tear-off, even though steel is lighter than asphalt. Codes vary, so call your local building department to know how to install metal roofing over shingles properly, code-wise. This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof.

How to build a roof over existing shingles?

Use a starter strip or cut pieces for a starter course. Rip-cut the starter strip or starter pieces so that they butt up against the second course of existing shingles and are even with the front edge of the existing roofing. Attach with nails along the top edge of the strip.

Why are metal roof shingles so popular now?

If you want to install metal shingles over your house, you have an unprecedented variety of profiles, styles and colors to choose from. In recent years, metal roofing shingles have grown in popularity because of an unbeatable combination of features.

What’s the best way to install a metal roof?

If you want to install steel over asphalt, your best choice for installing metal roofing is to use a steel shingle system like the one shown instead of the more common (and more expensive) standing seam steel. In a standing seam roof, long, single panels run vertically all the way from the eave to the ridge.

Is it safe to put steel roofing over shingles?

Metal roofing is resistant to fire, rot, and termites. Manufacturers provide 30-year warranties on metal roofing products. Installing steel roofing over existing roofing materials is fairly simple. Use furring strips to build a slat board on the roof, then mount the steel sheets to the slat board.

Is it OK to put metal roofing on a new building?

Whether you are looking to replace your existing roof or add a roof to a new building, metal roofing can be an attractive alternative to asphalt shingles. Metal roofing is strong enough to survive hurricanes, hail and wildfires.

What’s the best way to add shingles to a roof?

Before you reshingle a roof, read our step-by-step guide for adding new shingles over old ones. Remove the ridge caps. Doing it now will make it easier to keep the reroofing job clean. Use a flat pry bar or roofing shovel to pry out and remove the ridge shingles. Remove all nails.

How much does it cost to replace asphalt shingles with metal roofing?

Replacing shingles with metal roofing is not necessarily difficult, but it will require labor and time. The removal itself could cost anywhere from $3 to $5 per square foot. However, you do have the option of leaving the shingles in place and installing the roofing over them if the roof is in good shape.