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Atlas WeatherMaster Flexible Ice & Water Underlayment, 36" x 65' Self-Adhesive Roll
Regular price $213.00Orders start at $399 — combine any items to reach the minimum. Learn more
Atlas WeatherMaster Flexible Ice & Water Underlayment, 36" x 65' Self-Adhesive Roll
Atlas WeatherMaster Flexible Ice & Water is a film-faced, high-temperature self-adhesive roof underlayment supplied as a 36" x 65' roll on a pallet unit. Its SBS-modified adhesive backing seals directly to the deck and around nails, making it ideal for critical areas such as eaves, rakes and valleys. Use it beneath any type of roofing material.
Key Features:
- Self-adhesive backing: An SBS-modified, self-adhesive coating seals directly to the deck and creates a watertight seal around nails.
- High-temp stability: High temperature stability to 250°F per ASTM 36 for use under any type of roofing material.
- Skid-resistant film: The plastic film surface provides skid resistance, allowing better traction and safer installation.
- UV protection: UV-protected surface rated for 30-day exposure.
- Critical-area protection: Flexibility makes it ideal for eaves, rakes and valleys where ice and water protection matters most.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Atlas |
| Sell unit | 1 roll, 36 in. x 65 ft. (pallet sell unit) |
| Product line | WeatherMaster |
| Available sizes | 36" x 65' roll |
| Material | Film-faced, SBS-modified self-adhesive membrane |
| Coverage per unit | 36 in. x 65 ft. roll |
| High temperature stability | 250°F (ASTM 36) |
| UV exposure | UV-protected surface, 30-day exposure |
| Intended use | Ice & water roof underlayment for eaves, rakes and valleys under any roofing material |
Coverage & How Much You Need:
One 36" x 65' roll covers approximately 195 sq. ft. of roof deck at full width. Plan eave, rake and valley runs with laps per the manufacturer's installation instructions; the exact lap requirement is not stated in the sources.
Fit and Compatibility:
Suitable for use under any type of roofing material, including shingle, metal and tile systems. Pair with Atlas shingle lines and standard roofing underlayment for field coverage; primer may be required on some decks per the manufacturer's installation instructions.
Frequently Asked Questions (FAQ):
Q: What is included?
A: One 36" x 65' roll of Atlas WeatherMaster Flexible Ice & Water self-adhesive underlayment, sold on a pallet unit.
Q: How much area does a roll cover?
A: A 36-inch by 65-foot roll covers roughly 195 square feet of deck before laps.
Q: Where should it be installed?
A: It is ideal for critical areas such as eaves, rakes and valleys, and can be used under any type of roofing material.
Q: How long can it be exposed?
A: The UV-protected surface is rated for up to 30 days of exposure.
Q: How does it seal around fasteners?
A: The SBS-modified self-adhesive backing bonds directly to the deck and creates a watertight seal around nails.
Q: Can it handle heat under metal roofing?
A: Yes, it offers high temperature stability to 250°F (ASTM 36).
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Because this membrane is both flexible and high-temperature, it works well in valleys and on metal-roof eaves where standard sand-surface rolls can struggle. Roll it out onto a clean, dry deck and roll the laps firmly so the self-seal lap bonds fully. In heavy snow-load regions, run it up the eaves at least 24 in. past the interior wall line or to the code-required height.
The skid-resistant film improves traction, but still wear non-slip footwear and use fall protection when installing on a roof deck.
Order the Atlas WeatherMaster Flexible Ice & Water Underlayment 36" x 65' roll for dependable critical-area protection.
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