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OmniSeal® System

Multi-Ply Self-Adhered Roof System

OmniSeal® is a multi-ply self-adhered system for low slope roofs. Designed for 4:12 and lower roof slopes, with colors matched to Malarkey’s shingle offering, OmniSeal® is the perfect solution for the low slope portion of your home or commercial building.

System Optionality

OmniSeal® component sheets can create a 2-3 layer multi-ply system that meets desired performance, cost, and warranty needs.

OmniSeal® System

410 OmniSeal® Base

OmniSeal® Base is our premium, mechanically fastened, modified asphalt base sheet for low-slope commercial and residential roofing applications. 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.

410 OmniSeal® Base

420 OmniSeal® Ply

OmniSeal® Ply is our premium, self-adhering, modified asphalt ply sheet for low-slope commercial and residential roofing applications. OmniSeal® Ply is constructed with our proprietary Polymer Modified (Rubberized) Asphalt, reinforced with fiberglass, to create a super strong, durable waterproof roof layer.

420 OmniSeal® Ply
OmniSeal 430

430 Omniseal® Cap

OmniSeal® Cap is our premium, self-adhering, modified asphalt cap sheet for low-slope commercial and residential roofing applications. OmniSeal® Cap is available in several colors to match our shingles.

430 OmniSeal® Cap

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.

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.

Advanced Adhesion

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

Product Details

  Adhesion Rating Slip Resistance Flexibility Tear Strength* Temperature Rating Permeability Meets ASTM D1970 UV Stability Application Method Asphalt Technology Tear Strength Thickness Testing Compliance Warranties Fire Resistance (FR)
410 OmniSeal® Base
Mechanically Fastened Polymer Modified (Rubberized) Asphalt Enhanced 50 mils ASTM D4601 Type II; ASTM E108 Class A, B, & C; UL & Intertek Listed Up to 17 years ASTM E108 Class A, B, & C
420 OmniSeal® Base/Ply
Self-Adhered Polymer Modified (Rubberized) Asphalt Enhanced 60 mils ASTM D1970; ASTM D4601; ASTM E108 Class A, B, & C; FM Approved; UL & Intertek Listed up to 17 years ASTM E108 Class A, B, & C
430 OmniSeal® Cap
Self-Adhered Polymer Modified (Rubberized) Asphalt Enhanced 125 mils ASTM D3909; ASTM D7530; ASTM E108 Class B & C; UL 2218 Class 4; Intertek Listed Up to 17 years ASTM E108 Class B & C
 
410 OmniSeal® Base
420 OmniSeal® Base/Ply
430 OmniSeal® Cap
Application Method

Mechanically Fastened

Self-Adhered

Self-Adhered
Asphalt Technology

Polymer Modified (Rubberized) Asphalt

Polymer Modified (Rubberized) Asphalt

Polymer Modified (Rubberized) Asphalt
Tear Strength

Enhanced

Enhanced

Enhanced
Thickness

50 mils

60 mils

125 mils
Testing Compliance

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

ASTM D1970; ASTM D4601; ASTM E108 Class A, B, & C; FM Approved; UL & Intertek Listed

ASTM D3909; ASTM D7530; ASTM E108 Class B & C; UL 2218 Class 4; Intertek Listed
Warranties

Up to 17 years

up to 17 years

Up to 17 years
Fire Resistance (FR)

ASTM E108 Class A, B, & C

ASTM E108 Class A, B, & C

ASTM E108 Class B & C

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

  Adhesion Rating Slip Resistance Flexibility Tear Strength* Temperature Rating Permeability Meets ASTM D1970 UV Stability Application Method Asphalt Technology Tear Strength Thickness Testing Compliance Warranties Fire Resistance (FR)
410 OmniSeal® Base
Mechanically Fastened Polymer Modified (Rubberized) Asphalt Enhanced 50 mils ASTM D4601 Type II; ASTM E108 Class A, B, & C; UL & Intertek Listed Up to 17 years ASTM E108 Class A, B, & C
420 OmniSeal® Base/Ply
Self-Adhered Polymer Modified (Rubberized) Asphalt Enhanced 60 mils ASTM D1970; ASTM D4601; ASTM E108 Class A, B, & C; FM Approved; UL & Intertek Listed up to 17 years ASTM E108 Class A, B, & C
430 OmniSeal® Cap
Self-Adhered Polymer Modified (Rubberized) Asphalt Enhanced 125 mils ASTM D3909; ASTM D7530; ASTM E108 Class B & C; UL 2218 Class 4; Intertek Listed Up to 17 years ASTM E108 Class B & C
 
410 OmniSeal® Base
420 OmniSeal® Base/Ply
430 OmniSeal® Cap
Application Method

Mechanically Fastened

Self-Adhered

Self-Adhered
Asphalt Technology

Polymer Modified (Rubberized) Asphalt

Polymer Modified (Rubberized) Asphalt

Polymer Modified (Rubberized) Asphalt
Tear Strength

Enhanced

Enhanced

Enhanced
Thickness

50 mils

60 mils

125 mils
Testing Compliance

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

ASTM D1970; ASTM D4601; ASTM E108 Class A, B, & C; FM Approved; UL & Intertek Listed

ASTM D3909; ASTM D7530; ASTM E108 Class B & C; UL 2218 Class 4; Intertek Listed
Warranties

Up to 17 years

up to 17 years

Up to 17 years
Fire Resistance (FR)

ASTM E108 Class A, B, & C

ASTM E108 Class A, B, & C

ASTM E108 Class B & C

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