Highland Slate

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A home with Highland Slate Designer Roofing Shingles in Smokey Quartz.

Highland Slate

Manufacturer
CertainTeed
Product
Highland Slate
Status
Current
Market
United States
Last verified
September 23, 2026

Overview

Highland Slate is a laminated CertainTeed asphalt shingle with blended shades and the dimensional appearance of natural slate. It has an oversized shingle, an extra-heavy mat and a sealant system with two stripes of self-sealing adhesive. It is warranted for winds up to 110 mph.

Highland Slate shingles are algae-resistant (AR).

Composition

Highland Slate has a fiber glass mat base, an extra-heavy mat, and ceramic-coated mineral granules in refined, water-resistant asphalt.

Data sheets and technical documents

Current

Current files

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Dimensions and quantities

  • Overall dimensions: 18 inches by 36 inches.
  • Weather exposure: 8 inches.
  • Shingles per square: 50.
  • Approximate weight per square: 240 pounds.

Slope limits

Highland Slate is used on slopes of 2 inches per foot or greater. On 2:12 to under 4:12 slopes needs extra underlayment. At eaves prone to ice backup, CertainTeed WinterGuard Waterproofing Shingle Underlayment, or its equivalent, goes on the deck. Above 21 inches per foot, a spot of roofing cement goes under each shingle tab corner, eight in total.

Standards and approvals

  • ASTM D3018 Type I and ASTM D3462.
  • ASTM E108 Class A and UL 790 Class A fire resistance.
  • ASTM D3161 Class F and ASTM D7158 Class H wind resistance.
  • UL 2218 Class 3 impact resistance, at time of manufacture.
  • ICC-ES ESR-1389 and ESR-3537.
  • CSA Standard A123.5.
  • Miami-Dade County Product Control approval and Florida Product Approval FL5444.
  • Meets TDI Windstorm Requirements.

Construction

  • Single-layer design
  • Fiber glass mat base coated with asphalt and embedded with ceramic-coated mineral granules
  • Self-sealing adhesive strips
  • StreakFighter algae-resistance technology

Impact, fire and wind

The shingle carries a UL 2218 Class 3 impact rating and a Class A fire resistance rating from Underwriters Laboratories. It is designed for winds up to 110 mph, with an upgrade to 130 mph available when CertainTeed starter and CertainTeed hip and ridge products are used.

Additional warranties

  • 50-year limited transferable warranty against manufacturing defects for group-owned or commercial applications
  • Lifetime limited transferable warranty against manufacturing defects for residential applications

Hips, ridges and warranty

Cedar Crest accessory shingles of a matching color cap hips and ridges. Shangle Ridge can be used as an alternative. Highland Slate is one of the slate-profile products among residential shingle roofing materials.

Warranty terms named are a lifetime limited transferable warranty against manufacturing defects, a 25-year Algae Resistance Warranty with algae-resistant hip and ridge accessories, 10-year SureStart protection and a 10-year Limited Wind Warranty up to 110 mph. The data sheet is dated 10/25.