Metal roofing · brand review

Mastic (Ply Gem) roofing, reviewed.

Is Mastic (Ply Gem) a good roof brand? Here's the honest rundown — real product lines, warranty, cost, and the pros and cons — plus vetted local pros who install it.

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Mastic (Ply Gem) is a metal roofing brand (Founded 1938, Cary, NC). Mastic by Ply Gem is mainly a siding brand, part of Cornerstone Building Brands. It also makes metal roofing accents, soffit, fascia, and trim for the outside of a home. If you want a full shingle roof, Mastic is not a primary maker. Mastic metal roof accents and trim vary widely; a full metal roof from a true roofing maker runs about $14,000–$40,000 installed in 2026. HomeMatchup matches you with a few vetted local pros who install Mastic (Ply Gem) roofs — so you get a fair price and a right install. It's free, with no spam.

Brand
Mastic (Ply Gem)
Type
Metal roofing
Founded
Founded 1938
Headquarters
Cary, NC
HomeMatchup editorial rating
4/5
Warranty
Lifetime limited warranty on many Mastic vinyl and metal exterior products, prorated after an initial full-coverage period; terms vary by product.
Mastic (Ply Gem) products

Popular Mastic (Ply Gem) product lines.

Mastic Vinyl Siding

Its core product, not roofing

Metal Roofing & Trim

Metal panels, soffit, and fascia for accents and porches

Aluminum Soffit & Fascia

Trim that finishes off the roof edge and eaves

The honest take

Mastic (Ply Gem) pros and cons.

We call it straight — where Mastic (Ply Gem) shines, and where it doesn't.

What's good

  • Backed by a large parent company (Cornerstone Building Brands)
  • Strong choice for siding, soffit, and fascia
  • Lifetime limited warranties on many products
  • Good for finishing roof edges and small accent areas

What to watch

  • Not a primary maker of full shingle or metal roofs
  • Best known for siding, so roofers may steer you elsewhere
  • Roofing product range is limited compared to true roofing brands

Best for: The homeowner doing a full exterior project who wants matching siding, trim, and metal accents from one brand.

What does a Mastic (Ply Gem) roof cost?

Mastic metal roof accents and trim vary widely; a full metal roof from a true roofing maker runs about $14,000–$40,000 installed in 2026. Your real price depends on your roof size, pitch, and ZIP. The smartest way to get a fair Mastic (Ply Gem) price is to compare a few written quotes from vetted local pros. See the full roofing cost guide →

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FAQ

Mastic (Ply Gem) roofing questions

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Not really. Mastic by Ply Gem is mainly a siding brand. It makes some metal roofing, soffit, and fascia, but it's not a main maker of shingle or standing-seam roofs. For a full roof, look at a dedicated roofing brand.
Mastic's metal accents and trim vary a lot by project, so there's no simple number. A full metal roof from a true roofing maker runs about $14,000–$40,000 installed in 2026. If you're pricing a whole roof, get a free quote based on the real product you'll use.
Many Mastic vinyl and metal products come with a lifetime limited warranty. It usually covers full value for an early period, then prorates down over time. Terms differ by product, so ask for the exact warranty in writing.
For siding and trim, Mastic is a solid pick. For the roof itself, a dedicated brand like GAF (shingles) or Metal Sales (metal) makes more sense. Use Mastic to match your siding and edges, not as your main roof.

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