Stone-coated steel roofing · 2024 Experts' Choice Innovative Product Award Specs & Docs For Pros (920) 782-7577
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Get WeatherLok spec'd on the job.

Architects, builders, and building departments need specs, SDS, warranties, and code approvals fast. Here they all are, one click away. No calling around, no waiting on a rep, no reason to spec a lesser product.

The system

Built to be specified.

Stone-coated 26-gauge steel, interlocking and hidden fastener. The numbers below are the ones your building department will ask for. The full coverage, weight, and gauge details live on the product spec sheet in the library below.

WeatherLok system specifications
Material26-gauge stone-coated steel
Panel size53.13" x 16.93", 3.5" overlap, 19 panels per square
Weight147 lbs per square, panels only
FinishNatural stone granules, factory-bonded
FasteningInterlocking hidden-fastener system, direct to deck
FastenersFive hidden screws per panel, covered by the next course. Zero exposed screws, sealed watertight.
Wind rating110 mph, ASTM D3161
Hail ratingClass 4 impact, UL 2218
Fire ratingClass A, UL 790
Service life70 years
ProfilesShake and Slate Shingle, in Weatherwood and Charcoal

The documents library has its own page.

Spec sheets, SDS, installation guides, warranties, code approvals, and CAD files, all in one place and available on request while the downloadable library is finished.

Open the documents library
WeatherLok stone-coated steel roof being installed
The warranty

A warranty you can hand a homeowner.

50-year transferable warranty, all labor and materials against any factory defects.

The warranty (PDF)
Certifications & approvals

Independently tested. Verified before published.

WeatherLok is independently tested to 110 mph wind, Class 4 hail, and Class A fire. Formal code-approval numbers, ICC-ES, Florida Product Approval, and Miami-Dade NOA, are published here as each report is issued. We list a rating only when the issued report backs it.

2024 Experts' Choice Innovative Product Award badge
2024 Award
Experts' Choice, IRE
110 MPH
Wind uplift rated
Class A
Fire rating
Class 4
Hail rated
Independently Tested
UL tested
WeatherLok crew installing a stone-coated steel shake roof

Specifying a roof?
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Tell us about the job. We will get you the specs, the docs, and a straight answer on availability, no runaround.