Slate Roof Cost in 2021: Colors, Pros & Cons, Installation, and ROI

Slate roofs have a lot going for them in terms of longevity, durability, and classic beauty and style. Much of it is well known, some of it is not so well known.

Yes, natural slate is among the most costly and alluring roofing options for homes, but it is certainly not intended for every roof structure or house.

Cost

The high price of slate is perhaps one of its most significant drawbacks. In extreme cases, it may cost about the same to cover a one square area of the roof (100 sq. ft.) with high-end natural slate tiles, as it does to cover a small roof, say 1,000 sq. ft. (or 10 squares), with asphalt shingles. Yet, going strictly by price alone would be an entirely unfair comparison between the two drastically different roofing materials. Slate holds significantly more value than asphalt shingles.

That said, you can expect to pay between $15.00 and $25.00 per square foot to install slate tiles on a typical single-family house. Most homes with slate roofs are larger than an average-sized home. Assuming a roof size of 25 squares or 2,500 square feet, you can expect a total average price range of $37,500 to $62,500 to install a new slate roof on a suitable house with reinforced roof frame (to support the weight of a slate roof).

For most roof types, a professional roofing contractor is your best bet for getting that quality installation, but with natural slate tiles, it is best to go with a slater or a slate roofing specialist.

While a non-specialist or a typical roofer may at first feel confident about their ability to install it, they would often be wrong.

But, if you are really tempted to cut labor costs and go this route, be sure to ask them about their experience and for references or examples of their previous slate roof installations.

As this page on Roofing Calc points out, a poorly installed slate roof is a like not having a roof at all.

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2021 TPO Roof Cost and Pros & Cons of TPO Membrane Roofs

Say it with me: Thermoplastic polyolefin. Yes, TPO is much easier. According to Firestone Building Products’ white paper, TPO is technically a polypropylene based plastic combined with ethylene/propylene rubber.

So, plastic and rubber, mixed is what comprises a thermoplastic roofing membrane designed primarily for low-slope roofing applications with energy-efficiency in mind.

Much of the information online boasts how TPO is increasingly popular in commercial flat roofing. The thing is, we aren’t concerned with commercial buildings, and instead focus on the membrane options available, along with the costs, for adding this material to a residential roof.

Cost and Value

The main thing with effectively estimating the price to install a TPO roof is finding a qualified professional who can do the job. Mechanically attaching the material, or even gluing (fully adhering the membrane to the roof deck), is something most roofers can probably do.

via Atlanta Roofing Specialists

Effectively hot air-welding the membrane seams takes special care, skills, tools, and experience. If the hot air welding of the membranes’ seams is not done properly, then the entire TPO roof system could be compromised at the seams, and hence be subject to costly roof leaks.

In our research, RoofingCalc.com lists residential TPO roofing costs at $6.50 to $12.50 per sq. ft. for materials and professional installation, however some residential and commercial contractors will install it for as low as $5.50 to $7.50 per sq. ft., but only on larger straightforward projects or very simple and easily accessible residential projects that can be completed in a day or two.

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Synthetic Shake and Shingle Pricing Guide for 2021

Synthetic shake and shingles are polymer-based material, or a combination of plastic and rubber. They are used on roofs where homeowners desire the classic look of wood or natural slate, with the added benefits from the synthetic blends.

Synthetic shingle roofs are relatively new to the residential roofing market, first arriving in the early 1990s. Their durability, environmental friendliness and affordability have all contributed to their rising success.

Cost

For a 2,000 square foot roof on a typical, single-family house (up to two stories high), it will cost between $8.50 and $12.50 per sq.ft. installed. This results in an average total price range of $17,000 to $25,000. If the existing roof needs to be torn off and disposed of first, this can sometimes cost an additional $2,000 to $3,500 more.

The location of your home can greatly influence the overall cost of a new roof. Expect to pay more for a new roof on a house in an expensive coastal city relative to the cost of new roof in rural areas in the South or Midwest.

A more complex roof with multiple cut-up angles, dormers, peaks and valleys, or steeper pitch than average would add to the complexity of the project, and hence cost more as a result.

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