WeatherLock® G

GRANULATED SELF-SEALING ICE & WATER BARRIER

Helps Create a Water-Proof Barrier

Protects against water infiltration around eaves, rakes, valleys, vents, chimneys and skylights.

Helps Create a Water-Proof Barrier

Protects against water infiltration around eaves, rakes, valleys, vents, chimneys and skylights.

Overview

Product Detail Image

WeatherLock® G Granulated Self-Sealing Ice & Water Barrier allows for proper flow of water off the roof and helps prevent damage caused by water migration. Engineered for asphalt shingles, wood shakes and quarry slate roofs, WeatherLock® G Granulated also features:

  • Added protection – Acts as a waterproof barrier in the most vulnerable sections of the roof, such as valleys and around roof penetrations, to create a second line of defense. For optimal protection, apply to entire roof deck on 2:12 to 4:12 pitch roofs*
  • Excellent tear resistance – Resists cracking and breaking during installation
  • Self-adhesive – Adheres to the roof deck and creates a watertight seal around nails to help prevent water migration. Split backer sheet for easy application and positioning on the roof deck
  • Granulated surface – Provides a slip-resistant surface for excellent traction and safe installation
  • Selvage edge – Improves seal between courses
WeatherLock® G Granulated Self-Sealing Ice & Water Barrier is an essential part of the Owens Corning® Total Protection Roofing System®^.

Download Brochure PDF | 1.82 MB

Specifications and Literature

Product Information

Construction

Surface Granulated
Interior Reinforcement Durable FIBERGLAS™ mat
Adhesive Modified Asphalt
Removable Backing Split-sheet peel away release liner
Application Engineered for asphalt shingles, wood shake and quarry slate roof assemblies

Typical Values 3

1 sq. roll 2 sq. roll
Length 33.3 ft. (10.2 m.) 66.7 ft. (21.3 m.)
Width 3 ft. (0.9 m.) 3 ft. (0.9 m.)
Gross Coverage 100 sq. ft. (9.3 m2) 200 sq. ft. (19.4 m2)

1. The surface burning characteristics of these products have been determined in accordance with ASTM E84, UL 723, and CAN/ULC-S102. These standards should be used to measure and describe the properties of materials, products, or assemblies in response to heat and flame under controlled laboratory conditions and should not be used to describe or appraise the fire hazard or fire risk of materials, products or assemblies under actual fire conditions. However, results of this test may be used as elements of a fire risk assessment, which takes into account all of the factors, which are pertinent to an assessment of the fire hazard of a particular end use. Values are reported to the nearest 5 rating.

2. Preproduction qualification testing complete and on file. Chemical analysis of each production lot required for total conformance.

3. All values are approximate.

4. Limited to single layer applications above 650°F (343°C), but not greater than 6" (152mm) thickness.

5. With heat up schedule.

6. The surface burning characteristics of these products have been determined in accordance with UL 723, ASTM E84 or CAN/ULC-S102. Values are reported to the nearest 5 rating.

7. Preproduction qualification testing

8. Maximum allowable thickness at 1,000°F (538°C): Type I-HP - 8.5" (216mm); Type II-HP - 6"(152mm).

9. The surface burning characteristics of these products have been determined in accordance with UL 723, ASTM E84 or CAN/ULC-S102. These should be used to measure and describe the properties of materials, products or assemblies in response to heat and flame under controlled laboratory conditions and should not be used to describe or appraise the fire hazard or fire risk of materials, products or assemblies under actual fire conditions. However, results of this test may be used as elements of a fire risk assessment which takes into account all of the factors which are pertinent to an assessment of the fire hazard of a particular end use. Values are reported to the nearest 5 rating.

10. Preproduction qualification testing complete and on file. Chemical analysis of each production lot testing required for total conformance.

11. It is critical to have the right amount of intake ventilation and to adequately seal the attic floor to prevent pulling air from conditioned space.

12. For each Gable Mount fan, Owens Corning Roofing requires 890 square inches of intake. See instructions for details.

13. For each Roof Mount fan, Owens Corning Roofing requires 600 square inches of intake. See instructions for details.

* Ensure proper ventilation is met when applied over the entire roof deck.

^ Excludes non–Owens Corning™ Roofing Products such as flashing, fasteners and wood decking.

UL Class A Fire Resistance applies when installed under asphalt shingles and quarry slate.

Applicable Standards & Approvals

  • ASTM D1970
  • UL ER19380-01
  • ASTM E108/UL 790, Class A Fire Resistance
  • Florida Product Approval

Total Protection Roofing System®

Total Protection is more than shingle deep

It takes more than shingles to protect your home. It takes an integrated system of components and layers designed to help perform in three critical areas.

  • Seal Helps create a water-proof barrier
  • Defend Helps protect against nature's elements
  • Breathe For balanced attic ventilation

^ Excludes non-Owens Corning® roofing products such as flashing, fasteners and wood decking

CONTACT US

Even though we’re a global company, we’re always ready to answer your questions. Call to speak with an Owens Corning representative so you can start your project right away.

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