Skip to content
Atlas WeatherMaster Pro-Grade Ice & Water Underlayment 36 in. x 65 ft Roll
Regular price $218.00Orders start at $399 — combine any items to reach the minimum. Learn more
Atlas WeatherMaster Pro-Grade Ice & Water Underlayment 36 in. x 65 ft Roll
Atlas WeatherMaster Pro-Grade Ice & Water Underlayment is a 36 in. x 65 ft self-adhering membrane that adds an extra layer of waterproofing protection on vulnerable roof areas. One roll is the sell unit, and it pairs with Atlas shingles for complete roof defense in rough weather.
Key Features:
- Waterproofing layer: Provides an extra layer of waterproofing protection and peace of mind when the weather gets rough.
- UV protection: UV protected surface resists exposure during installation.
- Cold-weather bond: Aggressive bond at low temperatures allows installation in cooler conditions.
- Granule adhesion: Superior granule adhesion supports durable surface performance.
- Wide roll: 36 in. wide roll covers eaves, valleys and other critical areas quickly.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Atlas |
| Sell unit | 1 roll, 36 in. x 65 ft |
| Product line | WeatherMaster Pro-Grade Ice & Water |
| Dimensions | 36 in. x 65 ft roll |
| Coverage per unit | Approximately 195 sq. ft. per roll before laps |
| Finish / texture | UV protected surface |
| Intended use | Ice and water waterproofing underlayment beneath roof coverings |
| Key properties | Aggressive bond at low temperatures; superior granule adhesion |
Coverage & How Much You Need:
One 36 in. x 65 ft roll covers roughly 195 sq. ft. before laps; account for 2-3 in. side laps and 6 in. end laps, and typically run it from the eave up past the interior wall line or in valleys and around penetrations.
Fit and Compatibility:
Installs beneath asphalt shingles and other roof coverings; pair with Atlas shingle lines and starter products. Follow roof deck preparation and primer requirements for the substrate in use.
Frequently Asked Questions (FAQ):
Q: What is included?
A: One 36 in. x 65 ft roll of WeatherMaster Pro-Grade Ice & Water Underlayment.
Q: Where should I use it?
A: Commonly at eaves, valleys, around chimneys and penetrations, and other areas prone to ice damming and wind-driven rain.
Q: Can it be applied in cold weather?
A: Yes, it is formulated for an aggressive bond at low temperatures, though surface conditions still affect adhesion.
Q: Will sun exposure hurt it?
A: It has a UV protected surface, but membrane products should still be covered with the primary roofing promptly.
Q: How much coverage per roll?
A: About 195 sq. ft. before laps; subtract overlap area when estimating.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Run ice and water membrane full-width along eaves in snow-belt climates and up valleys and around all penetrations. Its low-temperature aggressive bond makes shoulder-season installs more reliable. Always roll the membrane firmly to activate adhesion and check local code minimums for eave protection width.
Membrane surfaces can be slippery, especially with frost or granular texture, so wear proper footwear and use fall protection on the roof.
Order Atlas WeatherMaster Pro-Grade Ice & Water Underlayment for premium waterproofing at your roof's most vulnerable spots.
All third party trademarks, including logos and icons, referenced on our website and product pages remain the property of their respective owners. Unless specifically identified as such, Arbor's use of third party trademarks does not indicate any relationship, affiliation, sponsorship, or endorsement between Arbor Home and the owners of these trademarks. Any references by Arbor Home to third party trademarks are to identify the corresponding third party goods.
