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Tarco LeakBarrier MS300 Ice & Water Armor Self-Adhesive Granulated Underlayment, Black
Regular price $86.50Orders start at $399 — combine any items to reach the minimum. Learn more
Tarco LeakBarrier MS300 Ice & Water Armor Self-Adhesive Granulated Underlayment, Black
Tarco LeakBarrier MS300 Ice & Water Armor is a glass fiber reinforced, self-adhesive modified bituminous underlayment for use under slate and asphalt shingles, sold per roll in black with 1 or 2 square roll options. Mineral granules on the upper surface provide skid resistance for improved footing, and the release film peels off for easy installation. It adheres directly to concrete, plywood, wood composition board and gypsum sheathing.
Key Features:
- Self-adhesive membrane: Glass fiber reinforced modified bituminous underlayment that self-adheres directly to the deck.
- Skid resistant surface: Mineral granules on the upper surface provide enhanced skid resistant properties and improved footing.
- Peel-and-stick install: Release film peels off for easy installation and handling.
- Under slate and shingles: Designed for use under slate and asphalt shingle roofing.
- Deck substrate flexibility: Adheres directly to concrete, plywood, wood composition board and gypsum sheathing.
- Roll options: Available as 1 square granulated roll, 2 square bagged roll or 2 square unboxed roll in black.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Tarco |
| Sell unit | 1 roll |
| Product line | Tarco LeakBarrier MS300 Ice & Water Armor |
| Material | Glass fiber reinforced self-adhesive modified bituminous underlayment |
| Color / finish | Black with mineral granule surface |
| Available colors | Black |
| Available sizes | 1 Square/Roll Granulated; 2 Square/Roll Bagged; 2 Square/Roll Unboxed |
| Dimensions | Available in 1 square per roll and 2 square per roll formats |
| Surface | Mineral granule upper surface for skid resistance |
| Exposure limit | 30 day exposure limit |
| Compatible substrates | Concrete, plywood, wood composition board, gypsum sheathing |
| Intended use | Ice and water underlayment beneath slate and asphalt shingles |
| Pack quantity | 1 roll |
Coverage & How Much You Need:
One 1 square roll covers approximately 100 sq. ft. and one 2 square roll covers approximately 200 sq. ft. before laps. Plan rolls based on roof area including eaves, valleys and penetrations, and follow the manufacturer's recommended overlap for continuous protection.
Fit and Compatibility:
Designed as an ice and water barrier under slate and asphalt shingles, and it adheres to concrete, plywood, wood composition board and gypsum sheathing. Shingles, drip edge and other underlayments are sold separately. Note the 30 day exposure limit before the final roof covering must be installed.
Frequently Asked Questions (FAQ):
Q: What is included?
A: One roll of Tarco LeakBarrier MS300 Ice & Water Armor in black; available as a 1 square granulated roll, 2 square bagged roll or 2 square unboxed roll.
Q: How much does a roll cover?
A: Rolls are rated at 1 square (about 100 sq. ft.) or 2 squares (about 200 sq. ft.) of coverage depending on the option chosen.
Q: How is it installed?
A: Peel the release film and press the self-adhesive membrane directly onto the prepared deck, following recommended laps.
Q: What substrates does it stick to?
A: It adheres directly to concrete, plywood, wood composition board and gypsum sheathing.
Q: What goes over it?
A: It is designed for use under slate and asphalt shingles.
Q: How long can it stay exposed?
A: The manufacturer specifies a 30 day exposure limit before the roof covering is installed.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Ice and water membrane is essential at eaves, valleys, rakes and around penetrations in cold climates and code jurisdictions that require it. The granulated surface of MS300 is a real safety plus for installers on steep slopes. Mind the 30 day exposure limit when sequencing the job, and choose the 2 square roll for larger open fields to reduce laps.
Membrane surfaces can be slippery; wear proper footwear and use fall protection when working on the roof, and follow the manufacturer's application temperature guidelines.
Order Tarco LeakBarrier MS300 Ice & Water Armor rolls for reliable self-adhered ice and water protection under your shingles.
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