Quick Answer: Can You Install Metal Roof Over Slate?

Most metal roofs require solid decking, but some can be installed over lathe boards or over wood shingles on lathe. Some of the more detailed designs can even be installed over slate roofs. It’s no secret that roofing can be precarious work, so be very careful. As you reach the roof, inspect it for working hazards.

Can you put a metal roof over an existing roof?

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.

Do I need furring strips under metal roof?

When installing a metal roof over an existing roof, insulate the spaces between the wood strips with rigid insulation to prevent condensation before installing the roofing. You also need to add furring strips. Twenty-four inches is a common spacing of furring strips for a metal roof.

What is the labor cost to install a metal roof?

While roofing labor costs vary all over the United States, most local roofing contractors charge $40 to $80 per hour. But in most cases, new metal roof installations are charged by project or by square foot. Expect to pay between $7 to $14 per square foot in most areas.

What are the disadvantages of a metal roof?

Disadvantages of metal roofs

  • Affordability. Metal roofs can be as much as two or three times more expensive than other roofing materials.
  • Noisiness.
  • Expansion, contraction and fasteners.
  • Inconsistency of color match.
  • Performance.
You might be interested:  Question: Do Collision Plate Boundaries Cause Volcanoes?

What should go under a metal roof?

The traditional and most common material used for roof underlayment on a steep-slope metal roof is non-perforated, asphalt-impregnated felt underlayment. There are several types of felt underlayment including both organic reinforced and inorganic reinforced.

What is the best underlayment for a metal roof?

Synthetic underlayment, like Barricade® UDL Select, is better suited for metal roofing than asphalt felt because it provides up to 30 degrees cooler surface than black underlayments. It also has excellent UV protection (up to six months) and offers a 30-year limited warranty.

Can you walk on metal roof?

Most metal roofs are manufactured and installed in such a way as to be safe to walk across without the worry of damaging the roof. You might mark or scuff the finish or paint on your metal roof, but average foot traffic shouldn’t significantly impact the longevity or performance of your metal roof.

What’s cheaper metal roof or shingles?

Metal roofs are $120 to $900 per square and are not usually cheaper than asphalt shingles, which are $100 to $150 per square. However, metal will last two to even five times as long as asphalt and could be a better value.

Do Metal Roofs leak?

That being said metal roofs aren’t indestructible and they can leak. Here are 5 common reasons even properly installed metal roofs can leak. Roofing screws are responsible for the majority of leaks on metal roofs. Metal roofing screws seal water out by compressing a rubber washer at the base of the screw head.

You might be interested:  How Do I Melt Snow In My Garage?

Can you put metal roof over shingles without furring strips?

You should not attach metal to asphalt shingles without furring out the roof first. Install radiant barrier, install 1″X4″ battens, install metal.

Is metal roof worth the money?

If price is your sole consideration, again, a metal roof is not worth it. You’ll pay more for a metal roof than most other material options, and the pay-off is a great-looking, high-performing roof that likely won’t require repairs or replacement for upward of 50 years.

What color metal roof is best?

It is best to choose a light color metal such as white, light bronze, beige, peach, light green or blue, if you live in a region that has a lot of sun and a hotter climate.

Why are metal roofs so expensive?

Metal roofing installation is more expensive compared to other roofing systems, because it requires special training, knowledge, tools and equipment. Installation costs are impacted by complexity of the roof, things like slope and rooflines play a role in the overall installation cost.