For most steep-slope roofing projects, DuPont Roof Protector is my best overall pick among these options because its full-size roll suits broad coverage, while Grip-Rite ShingleLayment High-Temperature stands out for heat-prone areas and ZIP System Peel and Stick for projects calling for an adhered membrane. The main choice is between lightweight synthetic sheets that cover large areas and self-adhering products designed to seal more directly to the roof deck. Small-format membrane rolls can suit targeted repairs, but they cover far less area than the 250-foot rolls. Product names alone do not confirm compatibility, code approval, or exposure limits, so check the manufacturer’s current instructions and local requirements before buying. Continue reading for my full breakdown of the 15 options and how to match one to your roof.
Get the little things that make your day delivered free — and shop member deals
- Fast, free delivery on millions of items
- Access to Prime Big Deal Days deals on October 6–7
- Prime Video, Amazon Music and more included
Key Takeaways
- Roll coverage separates the field: several synthetic options come in 4- or 8-foot-wide, 250-foot rolls, while the MYOYAY and GOOFCXO membranes are much shorter and better suited to localized work than whole-roof coverage.
- Application method matters more than color: Grip-Rite High-Temperature, ZIP System, and the self-adhesive MYOYAY and GOOFCXO options call for a different installation approach than the large-format synthetic rolls.
- Heat-specific labeling narrows the choice: Grip-Rite ShingleLayment High-Temperature is the clearest fit in this list when roof-surface heat is a primary concern, but buyers still need to verify compatibility with the finished roofing.
- Similar roll dimensions do not mean identical performance: BlackKnight, Grip-Rite LWE, SIPA, Interwrap UDL25, ArmorLay 25, APX, and Zeluga are large-format synthetic candidates, but the supplied product names alone do not establish equal tear strength, traction, or exposure ratings.
- EPDM is a distinct roofing approach: Pushglossy’s 50-mil rubber membrane is not simply another underlayment sheet; confirm that its intended roof assembly and installation requirements fit the project before comparing it with shingle underlayments.
| Pushglossy EPDM Rubber Roofing Membrane, 50 Mil, 39″ x 10 Ft, Black |  | Best for Small Roof Repairs | Material: EPDM rubber membrane with butyl adhesive backing | Thickness: 50 mil | Dimensions: 39 in x 10 ft | VIEW LATEST PRICE | See Our Full Breakdown |
| BlackKnight Professional Grade Synthetic Roofing Underlayment, 4 ft x 250 ft |  | Best for DIY-Friendly Full-Roof Coverage | Construction: Four-layer synthetic | Dimensions: 4 ft x 250 ft | Coverage: 1,000 sq ft (10 squares) | VIEW LATEST PRICE | See Our Full Breakdown |
| MYOYAY Self-Adhesive Waterproof Roofing Roll, 39 in. × 32.8 ft., White |  | Best for Heat-Conscious Repair Areas | Material: Rubber membrane with aluminum foil layer | Roll size: 39 in x 32.8 ft | Listed dimensions: 393 x 39 x 0.06 in | VIEW LATEST PRICE | See Our Full Breakdown |
| Grip-Rite ShingleLayment High-Temperature Self-Adhering Roofing Underlayment, 36 in. x 67 ft. |  | Best for High-Temperature Roof Zones | Material: Polypropylene | Dimensions: 36 in x 67 ft | Coverage: 201 sq ft | VIEW LATEST PRICE | See Our Full Breakdown |
| DuPont Roof Protector Roofing Underlayment Roll, 42 in × 286 ft |  | Best for Steep-Slope Shingle and Metal Roofs | Construction: Four-layer synthetic | Material: Woven polypropylene scrim | Roll width: 42 in (3.5 ft) | VIEW LATEST PRICE | See Our Full Breakdown |
| Grip-Rite ShingleLayment-LWE Synthetic Roofing Underlayment, 4 ft. x 250 ft. |  | Best for Longer Exposure Windows | Brand: Grip-Rite | Material: Woven polypropylene | Model: SL154250LWE | VIEW LATEST PRICE | See Our Full Breakdown |
| MYOYAY Self-Adhesive Waterproofing Roofing Membrane, 39 in x 16.4 ft, Gray |  | Best for Small Waterproofing Sections | Manufacturer: MYOYAY | Model: USY7-40893 | Material: Rubber with aluminum foil layer | VIEW LATEST PRICE | See Our Full Breakdown |
| SIPA 100 GSM Synthetic Waterproof Roof Underlayment, 48 in x 250 ft |  | Best for Standard Full-Deck Coverage | Roll dimensions: 48 in. x 250 ft. | Coverage: 1,000 sq. ft. | Weight: 21.1 lb. | VIEW LATEST PRICE | See Our Full Breakdown |
| Interwrap UDL25 Roof Underlayment, 48 in x 250 ft |  | Best for Extended Exposure and Roof-Type Flexibility | Brand: Interwrap | Model: UDL25 | Roll size: 48 in. x 250 ft. | VIEW LATEST PRICE | See Our Full Breakdown |
| ZIP System Peel and Stick Roof Underlayment, Standard Temperature |  | Best for Self-Adhered Nail-Seal Protection | Manufacturer: Huber Engineered Woods | Part number: S-20036 | Model: Standard Temp | VIEW LATEST PRICE | See Our Full Breakdown |
| ArmorLay 25 Synthetic Roof Underlayment, 4 ft x 250 ft |  | Best for Steep-Slope Walkability | Coverage: 1,000 sq ft | Dimensions: 4 ft x 250 ft | Material: Polyvinyl chloride (PVC) | VIEW LATEST PRICE | See Our Full Breakdown |
| APX Synthetic Roof Underlayment Roll, 48 in x 250 ft |  | Best for Multi-Material Roofs | Dimensions: 48 in x 250 ft | Coverage: 1,000 sq ft | Material: Four-layer polypropylene | VIEW LATEST PRICE | See Our Full Breakdown |
| GOOFCXO Self-Adhesive Waterproof Roofing Membrane Roll, 39 in x 16.4 ft |  | Best for Small Leak-Repair Areas | Dimensions: 39 in x 16.4 ft | Material: Polyethylene sheet, geotextile fabric, and polymer adhesive film | Installation: Self-adhesive; no heating device required | VIEW LATEST PRICE | See Our Full Breakdown |
| MYOYAY Self-Adhesive Waterproofing Roofing Membrane, 39 in x 16.4 ft, White | | Best for Reflective Small-Area Patches | Roll size: 39 in x 16.4 ft | Dimensions: 196.8 x 39 x 0.06 in | Weight: 7.15 lb | VIEW LATEST PRICE | See Our Full Breakdown |
| Zeluga 32-390 Synthetic Roofing Underlayment, 48 in. x 250 ft., 1,000 sq. ft. |  | Best for Long Exposure Windows | Dimensions: 48 in x 250 ft | Coverage: 1,000 sq ft (10 squares) | Material: 95 GSM woven polypropylene | VIEW LATEST PRICE | See Our Full Breakdown |
| roof underlayment | Material | Weight | Color | Dimensions |
|---|---|---|---|---|
| Pushglossy EPDM Rubber Roofing | EPDM rubber membrane with butyl adhesive backing | 11.57 lb | Black | 39 in x 10 ft |
| BlackKnight Professional Grade | — | 23.6 lb | Black | 4 ft x 250 ft |
| MYOYAY Self-Adhesive Waterproo | Rubber membrane with aluminum foil layer | 12.19 lb | White | — |
| Grip-Rite ShingleLayment High- | Polypropylene | 28 lb | White | 36 in x 67 ft |
| DuPont Roof Protector Roofing | Woven polypropylene scrim | 19 lb | — | — |
| Grip-Rite ShingleLayment-LWE S | Woven polypropylene | — | — | — |
| MYOYAY Self-Adhesive Waterproo | Rubber with aluminum foil layer | 6.4 lb. | Gray | — |
| SIPA 100 GSM Synthetic Waterpr | Non-woven polypropylene laminated with polyethylene and UV- and water-resistant adhesive | 21.1 lb. | Gray | — |
| Interwrap UDL25 Roof Underlaym | Plastic | — | — | — |
| ZIP System Peel and Stick Roof | Rubberized asphalt | 51 lb. | Black adhesive; dark gray backer | 10 x 10 x 38 in. |
| ArmorLay 25 Synthetic Roof Und | Polyvinyl chloride (PVC) | — | Gray | 4 ft x 250 ft |
| APX Synthetic Roof Underlaymen | Four-layer polypropylene | 18.36 lb | — | 48 in x 250 ft |
| GOOFCXO Self-Adhesive Waterpro | Polyethylene sheet, geotextile fabric, and polymer adhesive film | — | Grey | 39 in x 16.4 ft |
| MYOYAY Self-Adhesive Waterproo | Rubber with aluminum foil layer | 7.15 lb | White | 196.8 x 39 x 0.06 in |
| Zeluga 32-390 Synthetic Roofin | 95 GSM woven polypropylene | 18.56 lb | — | 48 in x 250 ft |
More Details on Our Top Picks
Pushglossy EPDM Rubber Roofing Membrane, 50 Mil, 39″ x 10 Ft, Black
Pushglossy’s 50-mil EPDM membrane suits targeted repairs and small areas where a peel-and-stick waterproof layer is more useful than a full-roof underlayment roll. Its butyl backing is designed to bond on contact, while the rubber core can conform to irregular surfaces such as shed details, gutters, or around skylights. Compared with the BlackKnight synthetic underlayment, this is a localized sealing material rather than a broad roof-deck layer for installation beneath shingles. Its short 10-foot roll also makes it easier to match to a repair, but less practical for covering large sections. The tradeoffs are substantial weight for its size and a black surface that may absorb heat. I’d choose it for a focused patch, not as a substitute for a complete underlayment system.
Pros:- 50-mil vulcanized rubber core provides a substantial membrane for localized protection
- Butyl adhesive backing is designed to form a watertight bond on contact
- Peel-and-stick installation avoids separate adhesive application
- Flexible material is suited to irregular details and varied repair surfaces
Cons:- The 10-foot roll is impractical for larger roof areas and requires multiple rolls
- At 11.57 pounds, the roll may be awkward to handle during overhead work
- Black material can absorb heat on sun-exposed roof surfaces
Best for: Homeowners sealing a small leak or protecting a limited roof detail on a shed, garage, or RV
Not ideal for: Roofers covering large roof decks or buyers who need a light, long-roll underlayment for installation beneath shingles
- Material:EPDM rubber membrane with butyl adhesive backing
- Thickness:50 mil
- Dimensions:39 in x 10 ft
- Color:Black
- Weight:11.57 lb
- Installation:Self-adhesive peel-and-stick with release liner
- Manufacturer:Pushglossy
Our verdict“Choose Pushglossy for small, targeted waterproofing repairs; use a full-width synthetic roll such as BlackKnight for broad roof-deck coverage.”
BlackKnight Professional Grade Synthetic Roofing Underlayment, 4 ft x 250 ft
BlackKnight’s four-layer synthetic roll is the most installation-guided choice here for a broad roof deck: traction surfaces, printed nail guides, and included cap nails help make layout and fastening less guesswork-heavy. Its 1,000-square-foot coverage also suits a full project better than the short repair membranes from MYOYAY or Pushglossy. Those self-adhering rolls focus on localized waterproofing, while BlackKnight is designed as an underlayment beneath a finished roof covering. The listed UV exposure allowance of up to six months gives a project some scheduling flexibility, but the included 50 cap nails are only a starter supply; additional fasteners are sold separately. I’d rank it ahead of simpler rolls for a DIY installer who values layout cues, but not for someone seeking a complete fastener package in the roll.
Pros:- Four-layer construction is designed to resist moisture, tearing, and cracking
- Traction surfaces support footing and handling during installation
- Printed nail guides help maintain more consistent fastening placement
- Includes 50 galvanized plastic cap nails to begin installation
Cons:- Additional cap nails are sold separately, so the included supply may not cover the project
- The 23.6-pound roll may take effort to position across a roof
- Its broad-roll format is less suited to small repairs than the Pushglossy or MYOYAY membranes
Best for: DIY roofers and small crews covering a full roof deck who want marked nail placement and traction surfaces
Not ideal for: Buyers seeking a self-adhering membrane for leak patches or a roll supplied with all fasteners for the job
- Construction:Four-layer synthetic
- Dimensions:4 ft x 250 ft
- Coverage:1,000 sq ft (10 squares)
- Weight:23.6 lb
- UV exposure resistance:Up to 6 months
- Color:Black
- Included fasteners:50 galvanized plastic cap nails
- Manufacturer:BlackKnight
Our verdict“Pick BlackKnight for a substantial roof installation where traction and printed fastening guides matter more than a complete fastener supply.”
MYOYAY Self-Adhesive Waterproof Roofing Roll, 39 in. × 32.8 ft., White
MYOYAY’s white, foil-faced membrane is a repair-oriented pick for buyers who want a cut-to-fit adhesive barrier and a surface intended to resist heat and harsh weather. At 32.8 feet long, it offers considerably more reach than the 10-foot Pushglossy roll, making it more flexible for a run of seams or a larger patch. Its aluminum foil layer is the distinguishing feature, though the product data does not quantify heat reflection or establish a full-roof performance rating. Unlike the 4-foot-wide BlackKnight roll, MYOYAY is a narrow, self-adhesive membrane—not a conventional broad underlayment for covering an entire deck. Surface preparation and firm pressing matter, and seams need overlap. I’d favor it for measured repairs, while choosing a named synthetic underlayment for a full shingle-roof installation.
Pros:- Self-adhesive backing allows cut-to-fit application without separate adhesive
- Longer 32.8-foot roll offers more repair length than Pushglossy’s 10-foot roll
- White aluminum-foil layer is designed to resist heat and harsh weather
- Listed for use on metal, wood, concrete, tile, and other surfaces
Cons:- Requires a clean, prepared surface and firm pressure during application
- Overlapping seams are needed for the intended barrier, adding care to installation
- Narrow roll is less suited to rapid coverage of a full roof deck than BlackKnight
Best for: Homeowners patching roof sections or sealing seams who want a white, cut-to-size self-adhesive membrane
Not ideal for: Contractors underlaying a full roof deck or buyers who need clearly stated coverage performance for a complete roofing system
- Material:Rubber membrane with aluminum foil layer
- Roll size:39 in x 32.8 ft
- Listed dimensions:393 x 39 x 0.06 in
- Color:White
- Weight:12.19 lb
- Installation:Self-adhesive backing
- Manufacturer:MYOYAY
- Model number:USY7-40965
Our verdict“Choose this MYOYAY roll for cut-to-size repairs where a white foil-faced membrane is useful, not as a replacement for broad synthetic underlayment.”
Grip-Rite ShingleLayment High-Temperature Self-Adhering Roofing Underlayment, 36 in. x 67 ft.
Grip-Rite ShingleLayment High-Temperature stands apart from the standard synthetic rolls here by combining self-adhering, self-sealing installation with a high-temperature designation. That makes it a targeted choice for roof zones where an adhered membrane is preferred, rather than a general-purpose roll for covering a large deck. Its slip-resistant surfaces support handling, and the listed UV exposure allowance of up to 180 days gives the roofing schedule room before the finished covering goes on. By comparison, BlackKnight covers 1,000 square feet per roll and includes printed nail guides, while this Grip-Rite roll is listed at 201 square feet and emphasizes adhesion. At 28 pounds, it is also heavy relative to its coverage. I’d reserve it for specific hot or weather-exposed areas, not choose it solely for maximum coverage.
Pros:- Self-adhering, self-sealing design supports a bonded layer on the roof deck
- High-temperature designation distinguishes it from general synthetic rolls such as BlackKnight
- Slip-resistant top and base surfaces support handling during installation
- UV-treated material is listed for up to 180 days of exposure
Cons:- Listed coverage is 201 square feet, much less than BlackKnight’s 1,000 square feet per roll
- The 28-pound roll is heavy relative to its stated coverage
- Temporary UV exposure allowance does not make it a permanent exposed roof covering
Best for: Roofing crews specifying an adhered underlayment for high-temperature areas or sections needing a self-sealing layer
Not ideal for: Buyers seeking a lightweight, high-coverage roll for an entire roof or those who do not need a high-temperature product
- Material:Polypropylene
- Dimensions:36 in x 67 ft
- Coverage:201 sq ft
- Weight:28 lb
- Color:White
- UV exposure:Up to 180 days
- Size designation:High Temperature
- Manufacturer:Grip-Rite
Our verdict“Choose Grip-Rite for targeted high-temperature areas where self-adhering protection matters more than broad coverage per roll.”
DuPont Roof Protector Roofing Underlayment Roll, 42 in × 286 ft
DuPont Roof Protector is the straightforward broad-coverage synthetic option for steep-slope roofs under asphalt shingles or metal roofing. Its four-layer build pairs a water-resistant laminate with reinforced woven scrim, aiming to resist tearing while the roof covering is installed. At 10 squares per roll, it matches BlackKnight’s stated coverage, but the 19-pound listed weight is lower than BlackKnight’s 23.6 pounds. BlackKnight offers more explicit installation aids—traction surfaces, printed nail guides, and included cap nails—so DuPont may suit buyers who prioritize a lighter roll over those extras. The data does not specify UV exposure time or included fasteners, so I wouldn’t assume either. This is a stronger fit for standard deck coverage than the self-adhesive repair membranes, but it still needs the appropriate roof covering above it.
Pros:- Four-layer synthetic construction includes reinforced woven polypropylene scrim
- 10-square coverage supports broad roof-deck installation
- Listed 19-pound weight is lower than BlackKnight’s 23.6-pound roll
- Grip surfaces are intended to help with installation
Cons:- Product data does not state a UV exposure limit
- Included fasteners are not specified, unlike BlackKnight’s package
- Designed as underlayment beneath shingles or metal roofing, not as a finished exposed roof surface
Best for: Roofers covering steep-slope decks beneath asphalt shingles or metal roofing who want a four-layer synthetic roll
Not ideal for: Installers who need stated UV exposure limits, included cap nails, or a self-adhering membrane for localized repairs
- Construction:Four-layer synthetic
- Material:Woven polypropylene scrim
- Roll width:42 in (3.5 ft)
- Roll length:286 ft
- Coverage:10 squares
- Weight:19 lb
- Intended roofing:Steep-slope roofs beneath asphalt shingles or metal roofing
Our verdict“Choose DuPont Roof Protector for broad steep-slope coverage when a lighter synthetic roll matters more than explicit fastening aids or listed UV timing.”
Grip-Rite ShingleLayment-LWE Synthetic Roofing Underlayment, 4 ft. x 250 ft.
Up to 180 days of UV exposure gives this woven polypropylene underlayment more scheduling flexibility than SIPA’s 60-day limit, a useful buffer when weather or contractor availability delays the finish roofing. Its slip-resistant surfaces and placement guides also support steadier footing and more consistent fastening across the deck. The 1,000-square-foot roll suits full-roof jobs, while its tear- and moisture-resistance focus fits buyers choosing synthetic coverage over a short-term exposed deck. Compared with Interwrap UDL25, Grip-Rite offers a shorter stated exposure window, but its alignment guides make it a more approachable pick for crews seeking installation cues. The tradeoff is that 180 days is still a temporary exposure allowance, not a substitute for prompt roof completion, and the product data does not specify a fire or hail rating.
Pros:- Up to 180 days of stated UV exposure provides more scheduling flexibility than SIPA’s 60-day allowance.
- Slip-resistant top and base surfaces support traction during installation.
- Placement guides help align the roll and plan fastening.
- Woven polypropylene is designed to resist tearing, cracking, and moisture.
Cons:- UV exposure is temporary and the stated limit is shorter than Interwrap UDL25’s six-month allowance.
- The supplied product data does not identify fire or hail ratings.
- A single 1,000-square-foot roll may not suit small repairs without cutting and leftover material.
Best for: Roofing crews and homeowners who need a full 1,000-square-foot synthetic roll with installation guides and extra scheduling room before shingles or metal roofing go on.
Not ideal for: Projects likely to leave the deck exposed beyond 180 days or buyers who need a documented fire or hail rating.
- Brand:Grip-Rite
- Material:Woven polypropylene
- Model:SL154250LWE
- Roll dimensions:4 ft. x 250 ft.
- Coverage:1,000 sq. ft.
- Roll weight:18.5 lb.
- UV exposure:Up to 180 days
- Quantity:1 roll
Our verdict“Choose Grip-Rite for guided installation and a longer exposure window than SIPA, but not for a roof that may remain uncovered past 180 days.”
MYOYAY Self-Adhesive Waterproofing Roofing Membrane, 39 in x 16.4 ft, Gray
Unlike full-deck rolls such as SIPA’s 48-inch-by-250-foot underlayment, this self-adhesive 39-inch-by-16.4-foot membrane is sized for targeted areas where a large roll would leave substantial excess. The rubber-and-aluminum-foil construction is described as a waterproof barrier with a heat-reflective layer, and it can be cut to fit custom sections. That makes it a practical option for small roofing details or compatible outdoor surfaces, rather than a straightforward choice for covering an entire house. Installation depends on a clean surface and firm pressing, and seams need overlap to limit water entry. Compared with ZIP System Peel and Stick, MYOYAY comes in a much smaller roll and its product data does not state a nail-seal feature or system guarantee. Buyers should also verify suitability for their specific roof assembly.
Pros:- Self-adhesive backing avoids separate mechanical fastening for the membrane itself.
- Short roll length is more manageable for targeted repairs than full-deck rolls such as SIPA.
- Can be cut to fit custom dimensions.
- Aluminum foil layer is described as heat reflective.
Cons:- Requires a clean surface and firm pressing for adhesion.
- Overlapping seams are needed to help limit water penetration.
- Product data does not provide a UV exposure duration or roof-system approval.
Best for: DIYers handling a small roof detail or outdoor waterproofing section who want a cut-to-size, self-adhesive roll instead of a full-deck package.
Not ideal for: Roofers covering large residential decks or anyone needing documented compatibility, exposure limits, or system-backed performance for a complete roof assembly.
- Manufacturer:MYOYAY
- Model:USY7-40893
- Material:Rubber with aluminum foil layer
- Roll size:39 in. x 16.4 ft.
- Overall dimensions:196.8 x 39 x 0.06 in.
- Weight:6.4 lb.
- Color:Gray
- Installation:Self-adhesive; cut to size
Our verdict“Pick this MYOYAY roll for small, cut-to-fit waterproofing jobs, not as a substitute for a documented full-roof underlayment system.”
SIPA 100 GSM Synthetic Waterproof Roof Underlayment, 48 in x 250 ft
SIPA is a straightforward choice for buyers who want 1,000 square feet of synthetic coverage in a conventional 48-inch-by-250-foot roll. Its laminated polypropylene construction is described as water resistant and UV protected, with stated compatibility for asphalt shingles and metal roofing. The listed TDI/FBC approval and cited ASTM standards add specification detail that is absent from MYOYAY’s small self-adhesive membrane, though installers should confirm which standards apply to their project. The main limitation is time: its 60-day UV exposure allowance is much shorter than Grip-Rite’s 180 days or Interwrap UDL25’s six months. It also needs separate roofing nails with plastic caps or cap staples, so it is less convenient than peel-and-stick options such as ZIP System. SIPA makes sense when a standard mechanically fastened roll fits the roofing plan.
Pros:- Covers 1,000 square feet in a standard 48-inch-by-250-foot roll.
- Listed as compatible with asphalt shingles and metal roofing.
- Up to 60 days of UV exposure provides a defined temporary weather window.
- Product data lists TDI/FBC approval and ASTM standards.
Cons:- The 60-day exposure limit is shorter than Grip-Rite’s 180 days and Interwrap UDL25’s six months.
- Requires separate roofing nails with plastic caps or cap staples.
- The supplied data does not list a slip-resistant surface.
Best for: Contractors or experienced homeowners covering a standard residential or commercial deck with asphalt shingles or metal roofing and planning to finish within 60 days.
Not ideal for: Projects with uncertain roofing schedules, or buyers who want adhesive installation rather than separate cap fasteners.
- Roll dimensions:48 in. x 250 ft.
- Coverage:1,000 sq. ft.
- Weight:21.1 lb.
- Material:Non-woven polypropylene laminated with polyethylene and UV- and water-resistant adhesive
- Color:Gray
- UV resistance:Up to 60 days
- Standards:ASTM D4869 and ASTM D226; description also cites ASTM D4533
- Approvals:TDI/FBC approved
- Compatible roof types:Asphalt shingles and metal
Our verdict“Choose SIPA for a standard 1,000-square-foot mechanically fastened roof when the covering work can be completed within its 60-day exposure window.”
Interwrap UDL25 Roof Underlayment, 48 in x 250 ft
Interwrap’s clearest advantage is its six-month UV exposure window, longer than Grip-Rite’s 180 days and SIPA’s 60 days. That extra time can help on projects where weather, sequencing, or material delivery may delay installation of the final roof covering. It is also the most broadly compatible synthetic option in this group: the supplied data lists asphalt shingles, synthetic shingles, metal, and cedar shakes. A slip-resistant surface, Class A fire rating, Class 4 hail rating, and mold resistance make its stated protection profile more specific than SIPA’s. The tradeoff is that the material is identified only as plastic, with no roll weight or coverage figure provided in the supplied specifications. Compared with the self-adhering ZIP System membrane, UDL25 is a broad-use synthetic sheet, not a nail-seal peel-and-stick barrier.
Pros:- Six-month UV exposure period exceeds the stated windows for Grip-Rite and SIPA.
- Listed for asphalt shingles, synthetic shingles, metal roofing, and cedar shakes.
- Class A fire rating and Class 4 hail rating are specified.
- Slip-resistant surface and mold resistance address practical roof-deck concerns.
Cons:- UV exposure remains temporary, so it does not support indefinite uncovered storage.
- Supplied data does not state roll weight or coverage.
- Plastic material description offers less detail about construction than SIPA’s specified laminate.
Best for: Roofing professionals or property owners who need a synthetic underlayment compatible with several steep-slope roof coverings and a longer stated exposure period.
Not ideal for: Buyers seeking a self-adhering nail-seal membrane, or shoppers who need roll weight and coverage figures before planning material quantities.
- Brand:Interwrap
- Model:UDL25
- Roll size:48 in. x 250 ft.
- Material:Plastic
- Roofing compatibility:Asphalt shingles, synthetic shingles, metal roofing, and cedar shakes
- Temperature range:-40°F to 240°F
- UV exposure:6 months
- Reclaimed content and recyclability:Minimum 20% reclaimed content; 100% recyclable
Our verdict“Choose Interwrap when roof-covering flexibility and a six-month exposure window matter more than self-adhesion or fully specified roll quantities.”
ZIP System Peel and Stick Roof Underlayment, Standard Temperature
ZIP System stands apart from the sheet underlayments here by using self-adhering rubberized asphalt to form a water barrier and nail-seal membrane. That makes it a better fit for roof decks, eaves, and valleys where buyers want adhered coverage rather than a mechanically fastened layer like SIPA. Its slip-resistant surface is intended to help with footing during installation, but the product’s strongest system-level claim is conditional: the 30-year ZIP System Leak-Free Guarantee applies only when it is installed with ZIP System sheathing and tape. That narrows its appeal compared with Interwrap UDL25, which lists compatibility across several roof-covering types without that same system requirement. The supplied data gives no roll coverage or UV exposure duration, and the 51-pound listed weight may make handling less convenient than the lighter Grip-Rite roll.
Pros:- Rubberized asphalt forms a self-adhering water barrier and nail-seal membrane.
- Designed for roof decks, including eaves and valleys.
- Slip-resistant surface is intended to improve installation traction.
- Eligible for the stated 30-year Leak-Free Guarantee when paired with ZIP System sheathing and tape.
Cons:- The guarantee depends on installation with ZIP System sheathing and tape.
- Supplied data does not specify roll coverage or UV exposure duration.
- Listed weight of 51 lb. may be less convenient to handle than Grip-Rite’s 18.5-pound roll.
Best for: Builders using ZIP System sheathing and tape who want an adhered nail-seal membrane across roof decks, eaves, or valleys.
Not ideal for: Roofers seeking a known roll coverage or UV exposure period, or those who do not plan to use ZIP System sheathing and tape but expect the stated guarantee.
- Manufacturer:Huber Engineered Woods
- Part number:S-20036
- Model:Standard Temp
- Material:Rubberized asphalt
- Weight:51 lb.
- Dimensions:10 x 10 x 38 in.
- Color:Black adhesive; dark gray backer
- Application:Roof decks, including eaves and valleys
- Guarantee condition:30-year ZIP System Leak-Free Guarantee when installed with ZIP System sheathing and tape
Our verdict“Choose ZIP System for adhered nail-seal protection when the roof is built with the matching sheathing and tape; otherwise, compare its system limits against Interwrap’s broader stated compatibility.”
ArmorLay 25 Synthetic Roof Underlayment, 4 ft x 250 ft
ArmorLay 25 is the walkability-focused pick for roofers who want a textured surface while placing and fastening underlayment on steep slopes. Its 1,000-square-foot roll matches the coverage of the APX and Zeluga options, but the distinguishing point here is the stated slip-resistant texture rather than a longer exposure window or printed layout guides. The PVC material is described as resisting buckling, warping, and cracking, which may help keep the sheet manageable during installation. It is water resistant, though it should still be treated as underlayment—not a finished roof. The main limitation is its 60-day UV exposure rating: Zeluga allows up to 180 days and APX up to 90, so ArmorLay is a weaker fit when the roof may remain uncovered through a long delay.
Pros:- Textured, slip-resistant surface supports walkability on steep slopes
- Covers 1,000 square feet per roll
- Water-resistant layer provides secondary roof protection
- Designed to resist buckling, warping, and cracking
Cons:- UV exposure is limited to up to 60 days, less than the listed APX and Zeluga limits
- The product data does not specify vapor permeability or roof-slope compatibility
Best for: Roofing crews installing shingles on steep slopes who value a textured, slip-resistant surface and expect to cover the underlayment within 60 days
Not ideal for: Homeowners or contractors facing extended construction delays, since its stated UV exposure limit is shorter than APX and Zeluga’s
- Coverage:1,000 sq ft
- Dimensions:4 ft x 250 ft
- Material:Polyvinyl chloride (PVC)
- UV exposure:Up to 60 days
- Standards:ASTM D4869 and ASTM D226 performance characteristics
- Water resistance:Water resistant
- Color:Gray
Our verdict“Choose ArmorLay 25 for steep-slope installation where surface grip matters more than a long uncovered exposure period.”
APX Synthetic Roof Underlayment Roll, 48 in x 250 ft
APX is the adaptable synthetic option for projects spanning metal, shingle, or tile roofing, with a stated minimum slope of 2:12. Its four-layer polypropylene construction, tear resistance, and vapor permeability give it a broader specified use case than ArmorLay 25, whose data does not list vapor permeability or compatible roof materials. At 90 days of UV exposure, it also allows more scheduling room than ArmorLay, though Zeluga’s stated 180-day limit is better for projects with lengthy pauses. APX is described as non-slip, lightweight, and easy to cut, helping crews handle and fit the roll. Its slope restriction is the key boundary: buyers with a lower-slope roof should not assume it is suitable, and the product data does not position it as a peel-and-stick waterproofing membrane.
Pros:- Specified for metal, shingle, and tile roofs
- Vapor permeability is listed at 0.12 perms
- Resists tearing, wind, fire, and up to 90 days of UV exposure
- Non-slip, lightweight material is described as easy to cut
Cons:- Specified for roof slopes of 2:12 or steeper
- Its 90-day UV limit is shorter than Zeluga’s listed 180 days
- Not described as a self-adhesive membrane for sealing roof details
Best for: Roofers handling metal, shingle, or tile projects on slopes of 2:12 or steeper who want one synthetic underlayment with stated vapor permeability
Not ideal for: Owners of roofs below a 2:12 slope or buyers seeking an adhesive membrane for sealing localized leaks
- Dimensions:48 in x 250 ft
- Coverage:1,000 sq ft
- Material:Four-layer polypropylene
- Weight:18.36 lb
- Vapor permeability:0.12 perms
- UV exposure resistance:Up to 90 days
- Roof slope:2:12 (17%) or steeper
- Standards:ASTM; ICC-ES AC188; ASTM E108 Class A
Our verdict“Pick APX for a multi-material roofing project at or above a 2:12 slope when vapor permeability and handling ease matter.”
GOOFCXO Self-Adhesive Waterproof Roofing Membrane Roll, 39 in x 16.4 ft
GOOFCXO is a repair-oriented peel-and-stick membrane, not a full-roof underlayment roll. Its 39-inch-by-16.4-foot format covers far less area than the 1,000-square-foot ArmorLay, APX, and Zeluga rolls, making it more suited to patching cracks or protecting a small section than lining an entire roof. The polyethylene, geotextile, and polymer-adhesive layers are designed to create a waterproof seal without heating equipment, a practical distinction from large mechanically installed synthetic sheets. It is described for use on metal, plastic, porch, RV, and other roofing surfaces, giving it more repair flexibility than the slope-specific APX. Adhesion depends on surface preparation: dirt can interfere with bonding, and the product information does not provide a coverage rating or independent performance standards to compare with the larger underlayments.
Pros:- Peel-and-stick installation requires no heating device
- Layered construction includes polyethylene, geotextile fabric, and polymer adhesive film
- Designed for several roofing materials and structures, including metal and RV roofs
- Flexible construction is intended to accommodate changing weather
Cons:- Short 16.4-foot roll is impractical for full-roof coverage
- Surface must be clean and free of dirt for proper adhesion
- Product data does not list coverage, UV duration, or performance standards
Best for: DIYers patching a small roof crack or repairing a limited area on a compatible metal, plastic, porch, or RV roof
Not ideal for: Roofers covering a complete roof, since this short roll has much less coverage than the 1,000-square-foot synthetic options
- Dimensions:39 in x 16.4 ft
- Material:Polyethylene sheet, geotextile fabric, and polymer adhesive film
- Installation:Self-adhesive; no heating device required
- Color:Grey
- Model:USC13-40893
- Brand:GOOFCXO
- Included components:Self-adhesive roofing membrane
Our verdict“Choose GOOFCXO for a small adhesive roof repair, not as a substitute for a full-coverage synthetic underlayment roll.”
MYOYAY Self-Adhesive Waterproofing Roofing Membrane, 39 in x 16.4 ft, White
MYOYAY’s white foil-faced membrane is a small-area repair pick for buyers who want an adhesive layer with a heat-reflective surface. Unlike the standard synthetic rolls from APX and Zeluga, it is cut to size and sticks to the prepared surface rather than being a large mechanical roof covering. Its rubber base and aluminum foil layer are described as resisting rain, snow, heat, and aging, while the white finish sets it apart from GOOFCXO’s gray peel-and-stick repair membrane. That reflective layer may suit a patch where heat exposure is a concern, but the product data does not provide independent durability evidence or quantified weather-performance results. Preparation and scale are the tradeoffs: the surface needs cleaning and firm pressure for adhesion, and a 16.4-foot roll is not a practical replacement for full-roof underlayment.
Pros:- Self-adhesive application avoids a separate fastening method
- Aluminum foil layer is designed to reflect heat and resist weather
- Can be cut to fit metal, wood, concrete, tile, and other surfaces
- Compact roll suits localized repairs better than a full-size underlayment roll
Cons:- Surface must be clean and firmly pressed for adhesion
- At 39 in x 16.4 ft, coverage is limited for roof-wide projects
- Product description provides no independent durability or performance evidence
Best for: DIY repairers sealing a small section of a metal, wood, concrete, or tile surface who want a white foil-faced membrane that can be trimmed to fit
Not ideal for: Contractors underlaying an entire roof or buyers who need documented performance ratings, quantified UV exposure, or independent durability evidence
- Roll size:39 in x 16.4 ft
- Dimensions:196.8 x 39 x 0.06 in
- Weight:7.15 lb
- Material:Rubber with aluminum foil layer
- Color:White
- Manufacturer:MYOYAY
- Model:USY7-40966
Our verdict“Choose this MYOYAY membrane for a small, cut-to-size repair where a white foil face is useful, but not for full-roof coverage.”
Zeluga 32-390 Synthetic Roofing Underlayment, 48 in. x 250 ft., 1,000 sq. ft.
Zeluga earns its place for projects that may sit uncovered: its stated UV resistance reaches 180 days, longer than APX’s 90 days and ArmorLay 25’s 60. That extra window gives crews more scheduling flexibility before the finished roof goes on. The 1,000-square-foot woven polypropylene roll also has a textured slip-resistant surface, while printed nail and overlap guides can help keep placement and fastening consistent. Unlike GOOFCXO and the short MYOYAY membrane, this is a full-size mechanically attached underlayment intended to sit beneath the finished roofing, not a localized adhesive patch. Its limits are clear: Zeluga requires mechanical attachment and provides secondary water protection only. Buyers wanting a peel-and-stick barrier or a finished waterproof roof should choose a different product type.
Pros:- Up to 180 days of stated UV resistance, longer than APX and ArmorLay 25
- Covers 1,000 sq ft per roll
- Printed nail and overlap guides support consistent placement and fastening
- Textured slip-resistant surface supports roof walkability
Cons:- Requires a mechanically attached roofing application
- Provides secondary water protection rather than serving as the finished roof
- Product data describes use for shingle installation but does not list the broader roof-material compatibility stated for APX
Best for: Roofing contractors who need a full-size synthetic underlayment with a long stated UV window and printed installation guides
Not ideal for: DIYers seeking a peel-and-stick repair membrane, or anyone expecting the underlayment to function as the finished roof
- Dimensions:48 in x 250 ft
- Coverage:1,000 sq ft (10 squares)
- Material:95 GSM woven polypropylene
- Weight:18.56 lb
- UV resistance:Up to 180 days
- Surface:Slip-resistant textured TPO
- Standards:ICC-ES ESR-5197, AC188, ASTM D8257, CAN/CSA A123.3
- Approvals:Florida FL-17194 and Texas T.D.I.
Our verdict“Choose Zeluga when a full-size shingle underlayment needs a longer uncovered work window and guide markings, provided mechanical attachment suits the job.”
How We Picked
I ranked these products around the decision that matters first: whether the material and application method match the roof and the job. I gave preference to options with clearly stated roll dimensions, recognizable material or use cues, and formats that make sense for broad coverage or a defined specialty. Large synthetic rolls ranked ahead for general roof coverage, while self-adhering rolls and the EPDM sheet were judged as more targeted choices rather than automatic substitutes.
I also weighed practical installation implications, stated temperature positioning, and how much useful information the product name provides a buyer. The supplied details do not establish complete performance data, such as tested slip resistance, permitted exposure time, code listings, or compatibility with every roof covering, so I do not treat those as proven advantages. My order reflects the best apparent fit from the listed specifications; buyers should check current manufacturer documentation and local code before purchasing.
Factors to Consider When Choosing Best Roof Underlayment
Choosing roof underlayment starts with the roof assembly, not the product’s marketing label. I would settle the installation method, roof covering, climate demands, and coverage plan before comparing individual rolls; those choices can rule out options that otherwise look similar.
Match the underlayment to the roof covering and assembly
Underlayment sits within a system, so the finished roof covering and deck details shape what can be used. Shingles, metal roofing, and low-slope assemblies can have different requirements for surface compatibility, fastening, and moisture management. Do not assume a product marked waterproof can replace the layer specified for a particular roof assembly. Check the roofing manufacturer’s instructions and local code for approved materials and installation details. A specialty sheet such as EPDM may belong to a different assembly than a conventional shingle underlayment. Confirming compatibility first can prevent a roll from being unsuitable even if its dimensions and material seem appealing.
Choose between mechanically fastened synthetic and self-adhering rolls
Large synthetic rolls are generally intended to cover broad areas and are installed according to their fastening and overlap instructions. Self-adhering membranes use an adhesive backing, which changes how the deck must be prepared and how the sheet is positioned. That can make them useful for areas where a bonded layer is specified, but installation mistakes can be harder to correct after contact. Do not compare products only by the word waterproof; look for the required primer, fastening rules, seam treatment, and temperature range. A mixed approach may be specified for some roof designs, but the assembly instructions should guide that choice. Buying one application type for every area can add work or leave details inadequately protected.
Calculate usable coverage, not just roll length
Nominal roll dimensions do not equal the area covered after overlaps, edges, and cuts. Compare each product’s stated coverage with the roof’s measured surface area and account for the installation pattern in its instructions. A short 16.4- or 32.8-foot membrane can be convenient for a repair or limited section but may require many rolls for a full roof. Wider, long synthetic rolls can reduce the number of seams and handling interruptions on a large project. Roof shape also changes the calculation: valleys, dormers, and multiple penetrations create more offcuts than a simple rectangle. Measure carefully before ordering so a low-waste plan does not leave you short midway through installation.
Verify temperature, exposure, and weather limits
Roof underlayment may be exposed between installation and completion of the roof, but permitted exposure periods vary by product. A high-temperature designation can be relevant under heat-generating roof coverings or in hot conditions, yet it does not by itself confirm suitability for every climate or roofing material. Read the technical sheet for installation temperature, maximum exposure duration, UV limits, and any restrictions around eaves or valleys. Plan the work schedule around forecast weather and the time needed to cover the deck. Leaving a membrane exposed longer than its instructions allow can compromise the protection you expected. When specifications are not available, ask the manufacturer rather than filling gaps with assumptions.
Compare handling and installation demands with your crew
Roll width, weight, backing, and fastening method affect how easily a crew can place the material safely. A wide roll can speed coverage but may be harder to control on a steep or windy roof, while narrow adhesive sheets demand careful alignment and deck preparation. Traction and handling instructions matter because underlayment is not a substitute for fall protection. Check whether the product calls for specific cap fasteners, seam overlaps, or substrate conditions before starting. If the installation is unfamiliar, factor labor and error risk into the material choice rather than focusing on roll size alone. A product that is straightforward for a trained crew may be a poor match for an inexperienced DIY installation.
Spend more only when the project benefits from the upgrade
A premium or specialty membrane can make sense when the roof design calls for adhesion, a stated heat rating, or a specific system requirement. It may be wasted on a straightforward project where an approved synthetic sheet meets the roof covering instructions. Conversely, choosing a generic-looking roll without confirming its documentation can create avoidable risk if the assembly requires a listed or specified product. Compare technical data, warranty conditions, and compatibility rather than treating branding as proof of better protection. Include waste, fastening supplies, and installation time when comparing total project cost. The right upgrade is the one that solves a real roof-specific requirement, not simply the one with the most assertive product name.
Frequently Asked Questions
Can I use a self-adhering membrane across my entire roof?
Only if the product is approved for that roof assembly and its installation instructions allow full-deck application. Self-adhering rolls can require a clean, dry, properly prepared surface and careful placement, and they may have specific temperature limits. Check compatibility with the roof covering, deck material, and local code before using one across a broad area. For many projects, a synthetic sheet may be the more practical general-coverage choice, while an adhered membrane is reserved for areas or assemblies that call for it. Confirm the intended layout with the roofing manufacturer or installer.
Which option makes the most sense for a small roof repair?
A short self-adhesive roll, such as the MYOYAY or GOOFCXO formats listed here, may be easier to handle for a limited repair than a 250-foot synthetic roll. That does not make it a universal patch: the existing roof assembly, repair location, and material compatibility still matter. Check whether the membrane can bond to the surface you have and whether it can be covered by the planned roofing material. For a repair near a leak, also identify and fix the source of water rather than covering only the visible damage. If the roof system has a warranty, ask whether the proposed repair material affects its terms.
Is a high-temperature underlayment necessary beneath metal roofing?
It can be appropriate where the roof covering or assembly creates elevated temperatures, but the label alone does not settle the choice. Verify the underlayment’s stated temperature limits and the metal-roof manufacturer’s requirements, including any restrictions on direct contact. Also check whether the product is designed for the roof pitch and deck in question. The Grip-Rite High-Temperature option is the clearest heat-focused product in this lineup, but its full technical documentation should guide the decision. If the roof covering instructions specify another membrane, follow that specification.
How much extra material should I order for overlaps and cuts?
There is no single waste allowance that fits every roof because pitch, layout, valleys, penetrations, and roll width all affect usable coverage. Start with measured roof area, then apply the overlap widths and installation pattern stated by the product manufacturer. Add material for offcuts and complicated sections, especially on roofs with dormers or multiple planes. Short rolls can leave more seams and may increase waste on a large roof, while wide rolls may be awkward to use efficiently on small or irregular sections. Ask the installer to calculate coverage from the roof plan before ordering.
Can I leave roof underlayment exposed while waiting for the roofing crew?
Only for the exposure period allowed by that specific product, and only under the conditions in its instructions. Sunlight, rain, temperature, and foot traffic can affect a sheet left uncovered, and permitted exposure times differ across products. The product names in this roundup do not provide enough information to infer those limits. Check the current technical sheet before scheduling installation, and coordinate the underlayment work with the roofing crew when possible. If weather or delays could extend exposure, choose a product whose documented limits fit the project plan.
Conclusion
For a broad, conventional roof project, I would start with DuPont Roof Protector as the best overall fit from the listed large-roll options, then confirm its technical documentation matches the assembly. For a value-minded buyer comparing full-size synthetic formats, Grip-Rite ShingleLayment-LWE is a practical candidate, though I would verify performance specifications rather than choose by roll size alone. Buyers seeking a premium or specialty adhered approach should examine ZIP System Peel and Stick; beginners may find a clearly documented, mechanically fastened synthetic roll easier to plan than a self-adhering membrane. For heat-focused needs, compare Grip-Rite ShingleLayment High-Temperature against the roof-covering instructions, while small repair jobs may suit the shorter MYOYAY or GOOFCXO rolls. Choose Pushglossy EPDM only when an EPDM-based roof assembly is intended, not as a default shingle underlayment. My final choice would be the product whose documented use, coverage, and installation requirements align with the actual roof—not simply the one with the broadest claims.
Halloween Picks
halloween
As an affiliate, we earn on qualifying purchases.
