Slate Beauty.
Permanent Metal Performance.
Meet Metstar Slate Plus — a stone-coated metal roofing profile engineered with a hidden-fastener design and the dimensional appearance of slate. ROOFNOW™ brings homeowners in Ontario a permanent-roofing option built around steel, curb appeal and long-term roof performance.
Designed to look like slate — not like exposed-fastener sheet metal.
Slate Plus combines a textured stone-coated surface with a low-profile slate pattern. The fastening system is concealed once installed, keeping screws out of the visible roof field and creating a cleaner finished appearance.
Metstar identifies Slate Plus as its most popular profile and publishes it in both stone-coated and smooth-finish versions. This page focuses on the stone-coated Slate Plus.
Hidden Fasteners
The fastener design is concealed in the completed roof surface for a cleaner slate-style appearance.
26GA Steel
Metstar’s brochure identifies Slate Plus as a 26-gauge stone-coated metal roof panel.
Slate Profile
Embossed panel geometry is designed to reproduce the dimensional character of traditional slate.
Stone-Coated Finish
A granular stone-coated surface softens the visual appearance of steel and provides multiple colour choices.
Metstar Slate Plus technical specs
Specifications are manufacturer-published and should be confirmed for the exact product run, installation system and project before ordering.
Built around the strengths of stone-coated steel.
Metstar’s Slate Plus literature highlights wind, hail, temperature and long-term durability characteristics. Warranty coverage is subject to the manufacturer’s written terms and proper installation.
Manufacturer-stated wind warranty: the panels will not blow off within the applicable warranty terms.
Manufacturer-stated hail warranty against cracking under hail stones up to 2.5 inches in diameter.
Metstar states additional snow retention is not required because snow retention is built into the roof profile.
Metstar states the system is not any noisier than the homeowner’s current roof when installed as intended.
Metstar states Slate Plus does not hold heat like asphalt shingles, resulting in less heat transferred to the attic.
Metstar’s published FAQ states the roofing does not attract lightning.
Three available colours
Compatible with Metstar Systems 3 & 4
Metstar publishes Slate Plus as compatible with its System 3 and System 4 installation systems.
- Patented hidden-fastener Slate Plus profile
- Designed by Metstar for re-roofing asphalt shingle roofs as part of its system approach
- Project-specific installation method depends on roof condition and applicable requirements
A complete roof system
The current Slate Plus product information from Metstar lists these compatible accessories:
- Metstar Slate Trim
- Metstar Universal Valley Caps
- Metstar Flatsheets
See the profile on real roof surfaces
Limited Lifetime Warranty
Metstar publishes a Limited Lifetime warranty with up to 50-year transferability for the Slate Plus system.
Always review the current written manufacturer warranty for eligibility, exclusions, registration requirements and transfer conditions.
Steel with an end-of-life story
- Metstar states Slate Plus is made with recycled materials.
- Metstar states the panels are fully recyclable at the end of their working life.
- Manufacturer literature states the product does not require landfill space at the end of its working life when recycled.
Metstar’s hidden-fastener roofing system
Metstar states that its roofing systems are patented and that its roofing profiles are designed specifically as a system for re-roofing asphalt shingle roofs.
The Slate Plus brochure identifies U.S. Patent #10,907,369 B2. Metstar’s current Slate Plus webpage also references Canadian Patent CAN#2942958.
Testing & Certifications
Metstar states that it holds multiple certifications and directs contractors/homeowners to contact the manufacturer for details on specific testing and approvals. Verify the current certification required for your municipality and project.
Metstar M.I.T. Inc.
Metstar describes itself as a manufacturer and distributor of stone-coated steel roofing and painted steel roofing profiles, supplying roofing companies in North America and internationally since the early 2000s.
Its current product range includes multiple roof profiles and both stone-coated and smooth finishes. Slate Plus is the company’s hidden-fastener slate profile and one of its central roofing products.
Interested in Metstar Slate Plus?
Tell us about your roof. ROOFNOW™ can review the project, discuss the Slate Plus profile and help you determine whether this stone-coated hidden-fastener system is a fit for your home.
Metstar Slate Plus FAQ
What is Metstar Slate Plus?
Slate Plus is a stone-coated steel roofing profile by Metstar M.I.T. Inc. It uses a slate-style embossed panel and a patented hidden-fastener approach.
What gauge is Slate Plus?
Metstar’s Slate Plus brochure identifies the stone-coated panels as 26GA.
How big is each panel?
Published dimensions are 52 3/16 inches overall length, 50 3/8 inches cover length and 14 5/16 inches cover width. Published panel weight is 6 lb / 2.75 kg and coverage is 20 panels per square.
Which Slate Plus colours are available?
The available colours are Crinkle Black, Crinkle Grey and Crinkle Brown.
Can Slate Plus be installed as a re-roofing system?
Metstar states its patented roofing systems are designed specifically as systems for re-roofing asphalt shingle roofs. The final installation approach must be confirmed for the condition of the existing roof and applicable local requirements.
What are the wind and hail warranty figures?
Metstar publishes a 120 MPH / 192 KMH wind warranty and a hail warranty stating the panels will not crack under hail stones up to 2.5 inches in diameter, subject to the manufacturer’s current written warranty terms.
Does Slate Plus require snow retention?
Metstar’s published FAQ states that additional snow retention is not required because snow retention is built into the roofing profile. Project-specific snow-management needs should still be reviewed for entrances, walkways and local conditions.
What warranty does Metstar publish?
Metstar publishes a Limited Lifetime warranty with up to 50-year transferability. Ask for the current written warranty before purchase because terms, eligibility and transfer requirements may apply.
Contractor Member
50-Year Warranty