Commercial

410 OmniSeal™ Base

Mechanically Fastened, Modified Base Sheet

Made with our industry-leading Polymer Modified (Rubberized) Asphalt, OmniSeal™ Base is our premium, mechanically fastened, modified asphalt sheet for low-slope commercial roofing applications.

System Optionality

OmniSeal™ Base is a modified asphalt sheet that is used as a base sheet to create a 2-3 layer multi-ply system that meets desired performance, cost, and warranty needs.

Mechanically Fastened

OmniSeal™ Base is designed to be attached to the roof deck using capped nails. Polymer Modified (Rubberized) Asphalt seals around the nails to waterproof the penetration.

Fire Rated Roof System

OmniSeal™ Base can be used to cover an existing roof or cover a new roof deck. It is a mandatory component to achieve a Class A fire rating when paired with our 420 OmniSeal™ SA Base/Ply and 436 OmniSeal™ Cap FR Sheet.

Key Features

Modified Asphalt

Made with proprietary Polymer Modified (Rubberized) Asphalt for exceptional weathering and extra strength, flexibility, and durability to resist damage and last longer.

Mechanically Fastened

Sheet is applied with specified metal cap nails.

Multi-ply System

Can be combined with conventional or modified asphalt sheets to create multi-layer redundancy and satisfy performance need, cost, or warranty.

Strong & Durable

Modified asphalt sheets are constructed with a sand and/or polypropylene surface to improve walkability and safety, and an underside of aggressive, asphalt-based adhesive to ensure adhesion. The sheets are reinforced with rubber and plastic polymers on a non-woven fiberglass mat.

 

Combined with other sheets for redundancy, modified asphalt delivers greater tear strength than conventional built-up roofing membranes for extreme, lasting durability. Up to 240 mils thick in a 3-ply system, 6X thicker than common single ply roofing systems.

Waterproof System

Naturally waterproof asphalt, built into a multi-ply system, helps resist water penetration.

Impact Resistant

Class 4 impact-rated when used as a system, the highest rating available from Underwriters Laboratory.

Enhanced Warranty

Enhanced warranties are available when product is used in a complete roofing system of Malarkey shingles and accessories, and installed by a Malarkey Certified Contractor.

Fire Resistance (FR)

Class A fire rated in a system assembly over a combustible or non-combustible deck.

Advanced Adhesion

Among industry’s highest adhesion uplift rating for greater confidence sheet will remain securely in place after installation.

Product Details

  Application Method Asphalt Technology Tear Strength Thickness Testing Compliance Warranties Fire Resistance (FR)
410 OmniSeal™ Base
Mechanically Fastened Polymer Modified (Rubberized) Asphalt Enhanced 55 mils ASTM D4601 Type II; ASTM E108 Class A, B, & C; UL & Intertek Listed Up to 20 years ASTM E108 Class A, B, & C
Torch Polymer Modified (Rubberized) Asphalt Exceptional 138 mils ASTM D6163 Type I, Grade S; ASTM E108 Class A; Intertek CCRR-0333; FM Approved Up to 30 years Yes
Hot Asphalt Polymer Modified (Rubberized) Asphalt Enhanced 90 mils ASTM D6163 Type I, Grade S; ASTM D4601 Type II; FM Approved; Intertek CCRR-0333 Up to 30 years Listed in various fire assemblies
Hot Asphalt Polymer Modified (Rubberized) Asphalt Enhanced 55 mils ASTM D4601 Type II; ASTM E108 Class A; Intertek CCRR-0333; UL Listed; FM Approved Up to 30 years Yes
 
Application Method

Mechanically Fastened

Torch

Hot Asphalt

Hot Asphalt

Asphalt Technology

Polymer Modified (Rubberized) Asphalt

Polymer Modified (Rubberized) Asphalt

Polymer Modified (Rubberized) Asphalt

Polymer Modified (Rubberized) Asphalt

Tear Strength

Enhanced

Exceptional

Enhanced

Enhanced

Thickness

55 mils

138 mils

90 mils

55 mils

Testing Compliance

ASTM D4601 Type II; ASTM E108 Class A, B, & C; UL & Intertek Listed

ASTM D6163 Type I, Grade S; ASTM E108 Class A; Intertek CCRR-0333; FM Approved

ASTM D6163 Type I, Grade S; ASTM D4601 Type II; FM Approved; Intertek CCRR-0333

ASTM D4601 Type II; ASTM E108 Class A; Intertek CCRR-0333; UL Listed; FM Approved

Warranties

Up to 20 years

Up to 30 years

Up to 30 years

Up to 30 years

Fire Resistance (FR)

ASTM E108 Class A, B, & C

Yes

Listed in various fire assemblies

Yes

410 OmniSeal Base

Malarkey Roofing Products Roll Roofing

410 OmniSeal Base Label

Malarkey Roofing Products Roll Roofing

Technical Specs

SKU: 410
L: 66′
W: 39-3/8″
SQ/Roll: 2
Thickness: 55 mils nominal

 

Testing Compliance

ASTM D4601 Type II
ASTM E108 Class A, B, & C
UL & Intertek Listed
 

Shipping Specifications

SQ/Roll: 2
Rolls/Pallet: 20
Rolls/Truckload: 600

PDF Documents

Videos

Warranty

Malarkey Roofing Products® offers various warranties to meet specific requirements. Contact your roofer, local distribution center or Malarkey’s Technical Services Department for full details.

Warranties

Compare Products

  Application Method Asphalt Technology Tear Strength Thickness Testing Compliance Warranties Fire Resistance (FR)
410 OmniSeal™ Base
Mechanically Fastened Polymer Modified (Rubberized) Asphalt Enhanced 55 mils ASTM D4601 Type II; ASTM E108 Class A, B, & C; UL & Intertek Listed Up to 20 years ASTM E108 Class A, B, & C
Torch Polymer Modified (Rubberized) Asphalt Exceptional 138 mils ASTM D6163 Type I, Grade S; ASTM E108 Class A; Intertek CCRR-0333; FM Approved Up to 30 years Yes
Hot Asphalt Polymer Modified (Rubberized) Asphalt Enhanced 90 mils ASTM D6163 Type I, Grade S; ASTM D4601 Type II; FM Approved; Intertek CCRR-0333 Up to 30 years Listed in various fire assemblies
Hot Asphalt Polymer Modified (Rubberized) Asphalt Enhanced 55 mils ASTM D4601 Type II; ASTM E108 Class A; Intertek CCRR-0333; UL Listed; FM Approved Up to 30 years Yes
 
Application Method

Mechanically Fastened

Torch

Hot Asphalt

Hot Asphalt

Asphalt Technology

Polymer Modified (Rubberized) Asphalt

Polymer Modified (Rubberized) Asphalt

Polymer Modified (Rubberized) Asphalt

Polymer Modified (Rubberized) Asphalt

Tear Strength

Enhanced

Exceptional

Enhanced

Enhanced

Thickness

55 mils

138 mils

90 mils

55 mils

Testing Compliance

ASTM D4601 Type II; ASTM E108 Class A, B, & C; UL & Intertek Listed

ASTM D6163 Type I, Grade S; ASTM E108 Class A; Intertek CCRR-0333; FM Approved

ASTM D6163 Type I, Grade S; ASTM D4601 Type II; FM Approved; Intertek CCRR-0333

ASTM D4601 Type II; ASTM E108 Class A; Intertek CCRR-0333; UL Listed; FM Approved

Warranties

Up to 20 years

Up to 30 years

Up to 30 years

Up to 30 years

Fire Resistance (FR)

ASTM E108 Class A, B, & C

Yes

Listed in various fire assemblies

Yes

Specifications & Testing

410 OmniSeal Base

Malarkey Roofing Products Roll Roofing

410 OmniSeal Base Label

Malarkey Roofing Products Roll Roofing

Technical Specs

SKU: 410
L: 66′
W: 39-3/8″
SQ/Roll: 2
Thickness: 55 mils nominal

 

Testing Compliance

ASTM D4601 Type II
ASTM E108 Class A, B, & C
UL & Intertek Listed
 

Shipping Specifications

SQ/Roll: 2
Rolls/Pallet: 20
Rolls/Truckload: 600

Documents & Resources

PDF Documents

Videos

Warranty Information

Warranty

Malarkey Roofing Products® offers various warranties to meet specific requirements. Contact your roofer, local distribution center or Malarkey’s Technical Services Department for full details.

Warranties