Liquid Applied Roofing Systems

Our liquid-applied systems provide seamless waterproof membranes that are easily applied and conform to any penetration shape. This system is ideal when faced with a confined urban space, numerous roof penetrations or restricted use of hot asphalt or heat welding.

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1-Part PermaFlash is a one-part, elastomeric, liquid-applied flashing material designed for flashing penetrations on granulated JM bituminous membranes. 1-Part PermaFlash is available in a box with two 1-gallon pails (9lbs each) or a 5-gallon pail (45lbs). It requires no mixing of components on-...

Use: 1-Part Permaflash is a unique, one-component, elastomeric, liquid applied flashing material, consisting of an asphalt/polyurethane resin. It is formulated for use with Johns Manville (JM) modbit membrane products.

Type: One-part, elastomeric, liquid-applied flashing material.

Color: Brown

Features: Cures to a durable, elastomeric film and forms exceptional bonds between the modified bitumen and a variety of penetrating materials. Single component solution with no mixing required that conforms easily to various geometries or irregular shapes. UV stable, high solids (80%), low odor.

Permaflash-Both-Packages

1-Part PermaFlash FAQ

Available Documents

JM PMMA Primer All-Purpose serves as a primer for the JM PMMA system. Combined with JM PMMA Catalyst, it forms a flexible combination primer for membrane, cement board, concrete, masonry, wood, and other substrates (as recommended). JM PMMA Primer All-Purpose promotes adhesion and reduces ...

Use: JM PMMA Primer All-Purpose serves as a primer for the JM PMMA system. Combined with JM PMMA Catalyst, it forms a flexible combination primer for membrane, cement board, concrete, masonry, wood, and other substrates (as recommended). JM PMMA Primer All-Purpose promotes adhesion and reduces staining on applications that contain residual or existing asphalt systems.

Type: Elastomeric, liquid-applied membrane primary layer.

Color: Translucent, Cloudy White

Features: Promotes adhesion on concrete, masonry, wood, asphalt and various surfaces. Suitable for ponding water areas. UV stable, high solids, VOC compliant.

Application Considerations

Liquid Membrane Application Guide
JM PMMADetails

 

Installation Videos

STEP 1: Installing JM PMMA on Board Joints

STEP 2: Installing JM PMMA on Wall Flashings

STEP 3: Installing JM PMMA for Penetration Flashings

STEP 4: Installing JM PMMA in the Field

Available Documents

For use with JM BUR and SBS membrane products. JM PMMA Catalyst is a reactive agent used to initiate curing of JM PMMA liquid resins and primer.

Use: For use with JM BUR and SBS membrane products. JM PMMA Catalyst is a reactive agent used to initiate curing of JM PMMA liquid resins and primer.

Type: Catalyst for two-part, elastomeric, liquid-applied PMMA systems.

Color: White Powder

JM PMMA Catalyst

Application Considerations

Liquid Membrane Application Guide
JM PMMADetails

 

Installation Videos

STEP 1: Installing JM PMMA on Board Joints

STEP 2: Installing JM PMMA on Wall Flashings

STEP 3: Installing JM PMMA for Penetration Flashings

STEP 4: Installing JM PMMA in the Field

Available Documents

JM PMMA Cleaner is used to clean and reactivate the transition area between existing, cured in-place JM PMMA membranes and primers and new tie-ins, repairs and staged coats of resin. This product may also be used as solvent for cleaning metal and plastic surfaces prior to resin application as well ...

Use: JM PMMA Cleaner is used to clean and reactivate the transition area between existing, cured in-place JM PMMA membranes and primers and new tie-ins, repairs and staged coats of resin. This product may also be used as solvent for cleaning metal and plastic surfaces prior to resin application as well as tools and equipment used with the application of the JM PMMA system.

Type: Aromatic blended solvent


Color: Un-Pigmented

Features: Prepares fully cured and existing JM PMMA membrane and primers for a new application of fresh resin.

APPLICATION CONSIDERATIONS

Liquid Membrane Application Guide

JM PMMADetails

 

INSTALLATION VIDEOS

STEP 1: Installing JM PMMA on Board Joints

STEP 2: Installing JM PMMA on Wall Flashings

STEP 3: Installing JM PMMA for Penetration Flashings

STEP 4: Installing JM PMMA in the Field

Available Documents

Combined with JM PMMA Catalyst to form a rapid-curing, flexible polymethyl-methacrylate (PMMA) resin containing chopped fiber reinforcement. Used in areas where fabric reinforced flashings would be difficult to install.Can be used to flash or repair small areas that cannot be reinforced with fabric....

Use: For use with JM BUR, SBS and JM PMMA membrane systems. JM PMMA Detailer combined with JM PMMA Catalyst to form a rapid-curing, flexible polymethyl-methacrylate (PMMA) resin containing chopped fiber reinforcement. Used in areas where fabric reinforced flashings would be difficult to install. Do not install in areas where differential movement is expected.

Type: One part of a two-part, elastomeric, liquid-applied flashing material.

Color: Light Grey

Features: Can be used to flash or repair small areas that cannot be reinforced with fabric. UV stable, high solids, VOC compliant.

Application Considerations

Liquid Membrane Application Guide
JM PMMADetails

 

Installation  Videos

STEP 1: Installing JM PMMA on Board Joints

STEP 2: Installing JM PMMA on Wall Flashings

STEP 3: Installing JM PMMA for Penetration Flashings

STEP 4: Installing JM PMMA in the Field

Available Documents

JM PMMA Field Resin is part of a two-component, fast-curing, polymethyl-methacrylate (PMMA) system for roofing and waterproofing application. It is combined with JM PMMA Catalyst and JM PMMA Scrim to form a monolithic reinforced membrane.

Use: JM PMMA Field Resin is part of a two-component, fastcuring, polymethyl-methacrylate (PMMA) system for roofing and waterproofing application. It is combined with JM PMMA Catalyst and JM PMMA Scrim to form a monolithic reinforced membrane.

Type: One part of a two-part, elastomeric, liquid-applied membrane.

Color: White or Grey

Features: Elastomeric and monolithic. Suitable for ponding water areas. UV stable, high solids, VOC compliant. Available in Summer and Winter Grade. May be combined with JM PMMA Thixo for use on vertical flashings.

JM PMMA FIELD RESIN DS

Application Considerations

Liquid Membrane Application Guide
JM PMMADetails

 

Installation Videos

STEP 1: Installing JM PMMA on Board Joints

STEP 2: Installing JM PMMA on Wall Flashings

STEP 3: Installing JM PMMA for Penetration Flashings

STEP 4: Installing JM PMMA in the Field

Available Documents

For use with JM BUR and SBS membrane products. It is combined with JM PMMA Catalyst and JM PMMA Scrim to form a monolithic, self-reinforced flashing membrane for penetrations and a variety of other details.

Use: For use with JM BUR and SBS membrane products. It is combined with JM PMMA Catalyst and JM PMMA Scrim to form a monolithic, self-reinforced flashing membrane for penetrations and a variety of other details.

Type: One part of a two-part, elastomeric, liquid-applied flashing material.

Color: White or Grey

Features: Can be used to flash most penetrations, drains, and vertical surfaces. Resists virtually all factors affecting base flashing performance while providing superior flexibility and durability. UV stable, high solids, VOC  compliant. Available in a Summer and Winter Grade.

JM PMMA Flashing RESIN DS

Application Considerations

Liquid Membrane Application Guide
JM PMMADetails

 

Installation Videos

STEP 1: Installing JM PMMA on Board Joints

STEP 2: Installing JM PMMA on Wall Flashings

STEP 3: Installing JM PMMA for Penetration Flashings

STEP 4: Installing JM PMMA in the Field

Available Documents

This product serves as a primer for a JM PMMA system. It promotes adhesion for various metal substrates, including drain bowls and edge metal.

Use: This product serves as a primer for a JM PMMA system. It promotes adhesion for various metal substrates, including drain bowls and edge metal. Type: One part liquid-applied flashing primer.

Color: Un-Pigmented

Features: Can be used to prime various metal substrates for a JM PMMA system.

Application Considerations

Liquid Membrane Application Guide
JM PMMADetails

 

Installation Videos

STEP 1: Installing JM PMMA on Board Joints

STEP 2: Installing JM PMMA on Wall Flashings

STEP 3: Installing JM PMMA for Penetration Flashings

STEP 4: Installing JM PMMA in the Field

Available Documents

For use with JM PMMA membrane systems. It is combined with JM PMMA Catalyst to form a rapidcuring, flexible resin for repairing substrates or covering insulation joints prior to installation of a JM PMMA system.

Use: For use with JM PMMA membrane systems. It is combined with JM PMMA Catalyst to form a rapidcuring, flexible resin for repairing substrates or covering insulation joints prior to installation of a JM PMMA system.

Type: An elastomeric liquid-applied paste.

Color: Pebble Grey

Features: Can be used to cover the joints in insulation boards to prepare them for application of a JM PMMA membrane system. Used for patching or repairs on a variety of substrates. UV stable, high solids, VOC compliant.

JM PMMA Repair Paste DS

Application Considerations

Liquid Membrane Application Guide
JM PMMADetails

 

Installation Videos

STEP 1: Installing JM PMMA on Board Joints

STEP 2: Installing JM PMMA on Wall Flashings

STEP 3: Installing JM PMMA for Penetration Flashings

STEP 4: Installing JM PMMA in the Field

Available Documents

JM PMMA Scrim is used in JM PMMA liquid-applied, reinforced membrane systems to improve tear strength, puncture resistance, and crack bridging apabilities. It is a non-woven, chopped strand fabric reinforcement.

Use: JM PMMA Scrim is used in JM PMMA liquid-applied, reinforced membrane systems to improve tear strength, puncture resistance, and crack bridging capabilities. It is a non-woven, chopped strand fabric reinforcement.


Color: White

JM PMMA FLASHING SCRIM DS

Application Considerations

Liquid Membrane Application Guide
JM PMMADetails

 

Installation Videos

STEP 1: Installing JM PMMA on Board Joints

STEP 2: Installing JM PMMA on Wall Flashings

STEP 3: Installing JM PMMA for Penetration Flashings

STEP 4: Installing JM PMMA in the Field

Available Documents

For use with JM PMMA membrane systems in high traffic areas such as balconies or walkways. JM PMMA Textured Top Coat is combined with JM PMMA Color Pack and JM PMMA Catalyst to form a flexible resin with pre-mixed aggregate.

Use: For use with JM PMMA membrane systems in high traffic areas such as balconies or walkways. JM PMMA Textured Top Coat is combined with JM PMMA Color Pack and JM PMMA Catalyst to form a flexible resin with pre-mixed aggregate.

Type: Elastomeric, liquid-applied top coat.

Color: Not pigmented, Determined by JM PMMA Color Pack

Features:

  • Added slip resistance for high traffic areas.
  • UV stable, high solids, VOC compliant.
  • May be combined with JM PMMA Thixo for use on vertical flashings.
JM PMMA Textured Top Coat DS

Brochures

JM PMMA Top Coat and Textured Top Coat Color Chart

Application Considerations

Liquid Membrane Application Guide
JM PMMADetails

 

Installation Videos

STEP 1: Installing JM PMMA on Board Joints

STEP 2: Installing JM PMMA on Wall Flashings

STEP 3: Installing JM PMMA for Penetration Flashings

STEP 4: Installing JM PMMA in the Field

Available Documents

JM PMMA THIXO is used with JM PMMA resin systems as a thixotropic additive. It may be mixed with JM PMMA Resin or JM PMMA Top Coats to prepare the mixture to be used in slopes greater than 1.5":12", including vertical applications.

Use: For use with JM PMMA resin systems as a thixotropic additive. It may be mixed with JM PMMA Resin or JM PMMA Top Coats to prepare the mixture to be used in slopes greater than 1.5":12", including vertical applications.

Type: One part liquid thickening agent.

Features: Prepares JM PMMA Resin and Top Coats for use on vertical surfaces. Ideal when JM PMMA Top Coat is needed for vertical surfaces or for when the JM PMMA Resin - Flashing is unavailable or not practical for use.

20141217_JM_PMMA_CONTAINER-113

Application Considerations

Liquid Membrane Application Guide
JM PMMADetails

 

Intallation Videos

STEP 1: Installing JM PMMA on Board Joints

STEP 2: Installing JM PMMA on Wall Flashings

STEP 3: Installing JM PMMA for Penetration Flashings

STEP 4: Installing JM PMMA in the Field

Available Documents

JM PMMA Top Coat is combined with JM PMMA Color Pack and JM PMMA Catalyst to form a UV stabilized, resilient finish top coat.

Use: For use with JM PMMA membrane systems. JM PMMA Top Coat is combined with JM PMMA Color Pack and JM PMMA Catalyst to form a UV stabilized, resilient finish top coat. The top coat may be smooth or applied with broadcast aggregate.

Type: Elastomeric, liquid-applied top coat.

Color: Not pigmented, Determined by JM PMMA Color Pack

Features: May be combined with JM PMMA Thixo for use on vertical flashings.

JM PMMA Top Coat DS

Brochures

JM PMMA Top Coat and Textured Top Coat Color Chart

Application Considerations

Liquid Membrane Application Guide
JM PMMADetails

 

Installation Videos

STEP 1: Installing JM PMMA on Board Joints

STEP 2: Installing JM PMMA on Wall Flashings

 

                                                                  

STEP 3: Installing JM PMMA for Penetration Flashings

STEP 4: Installing JM PMMA in the Field

Available Documents

JM PMMA Top Coat can be tinted in a variety colors. Check out the full list to make your commercial roof even more unique.

Use: For use with JM PMMA membrane systems. JM PMMA Top Coat is combined with JM PMMA Color Pack and JM PMMA Catalyst to form a UV stabilized, resilient finish top coat. The top coat may be smooth or applied with broadcast aggregate.

Type: Elastomeric, liquid-applied top coat.

Color: Not pigmented, Determined by JM PMMA Color Pack

Features: May be combined with JM PMMA Thixo for use on vertical flashings.

RS-5624 PMMA Color Chart

Brochures

JM PMMA Top Coat and Textured Top Coat Color Chart

Available Documents

Synthetic polymer-based Primer for JM TPO and EPDM Membrane surfaces.

Use: To prime JM EPDM and TPO membrane surfaces for adhering EPDM or TPO peel and stick products.

Type: One-part, low VOC synthetic polymer-based membrane primer.

Color: Clear to Light Yellow

JM-Single-Ply-Membrane-Primer-4
Available Documents

Liquid-applied system that can accommodate the most challenging penetration shapes.

The PermaFlash System consists of PermaFlash Primer, MBR Flashing Cement, and PermaFlash Scrim. It is an integrated flashing system specifically formulated for use in bituminous systems.

Features: Can be used to flash most penetrations, drains, and vertical surfaces.
Resists virtually all factors affecting flashing performance while providing superior flexibility and durability.
High solids, low odor, VOC compliant, and UV stable.

PermaFlash Primer (Low VOC): One-Part Solvent-Based Primer that improves adhesion of MBR® Flashing Cement to nonporous substrates.

MBR Flashing Cement: Two-part, liquid-applied flashing material that cures to a durable, elastomeric film. (Please see the MBR Flashing Cement data sheet for more information.)

PermaFlash Scrim: Flexible stitchbonded polyester scrim.

Colors:

  • Primer - Clear
  • Liquid Base - Black
  • Activator - Brown
  • Scrim - White
Permaflash-700x4181

Brochures

PermaFlash® Bituminous Flashing System Brochure

Installation Considerations

PermaFlash® Bituminous Flashing System Detail Instructions
PermaFlash® Bituminous Flashing System Penetration Flashing

 

Available Documents

This scrim is a polyester based, non-woven reinforcement fabric used in the JM SP Liquid Flashing system. The soft, flexible fabric is designed for use around oddly shaped, difficult penetrations and tying together different roofing substrates.

Use: JM SP Liquid Flashing Scrim is a polyester based, non-woven reinforcement fabric used in the JM SP Liquid Flashing system. The soft, flexible fabric is designed for use around oddly shaped, difficult penetrations and tying together different roofing substrates. 

Type: Polyester fabric, scrim reinforcement layer

Color: White

Features:
Improves tear strength and puncture resistance
Easily shaped to fit even the most difficult penetrations
Helps maintain membrane and application uniformity
Available in two widths to fit your flashing requirements

JM SP Liquid Flashing Scrim 710x533

JM SP Liquid Flashing Resin Advantage Sheet

JM SP Liquid Flashing Installation Guide

Available Documents

JM SP Liquid Flashing TPO and PVC Primer is used to prime the JM TPO and PVC (KEE and SD Plus) single ply membranes as part of the JM SP Liquid Flashing system.

Use:  JM SP Liquid Flashing TPO and PVC Primer is used to prime the JM TPO and PVC (KEE and SD Plus) single ply membranes as part of the JM SP Liquid Flashing system.

Type: Single component, solvent based membrane primer

Color: Light yellow

Features:
Excellent adhesion to JM TPO and JM PVC single ply membranes.
Quick curing to speed up application time.
Single component for east 1-step application. No mixing needed, just pour and spread.

JM SP Liquid Flashing TPO and PVC Primer 710x533

JM SP Liquid Flashing Resin Advantage Sheet

JM SP Liquid Flashing Installation Guide

Available Documents

JM SP Liquid Flashing Concrete Primer is used to prime properly prepared and abraded concrete and masonry substrates that comes into contact with JM single ply membranes as part of the JM SP Liquid Flashing System.

Use: JM SP Liquid Flashing Concrete Primer is used to prime properly prepared and abraded concrete and masonry substrates that comes into contact with JM single ply membranes as part of the JM SP Liquid Flashing System.

Type: 2-component, epoxy based, cold applied liquid primer

Color: Clear Part A and Yellow Part B

Features:
Excellent adhesion to a wide variety of masonry substrates
Solvent Free and Low VOC
Quick curing to support faster application times Pre-portioned and easy to use

JM SP Liquid Flashing Concrete  Primer 710x533

JM SP Liquid Flashing Resin Advantage Sheet

JM SP Liquid Flashing Installation Guide

Available Documents

Use this primer to prime properly prepared and acceptable metal and wood substrates that comes into contact with JM single ply membranes as part of the JM SP Liquid Flashing system.

Use: JM SP Liquid Flashing Metal and Wood Primer is used to prime properly prepared and acceptable metal and wood substrates that comes into contact with JM single ply membranes as part of the JM SP Liquid Flashing system.

Type: 2-component, polyurethane based, cold applied liquid primer

Color: Tan Part A and Brown Part B

Features:
Excellent adhesion to a wide variety of metal substrates
Approved on plywood (standard and marine grade), OSB, and wood plank
Solvent Free and Low VOC
Quick curing to support faster application times
Pre-portioned and easy to use

JM SP Liquid Flashing Metal and Wood Primer 710x533

JM SP Liquid Flashing Resin Advantage Sheet

JM SP Liquid Flashing Installation Guide

Available Documents

JM SP Liquid Flashing Resin, when combined with primers and scrim, creates a cold applied, reinforced liquid flashing compatible with all JM single ply membranes: TPO, PVC, & EPDM. The monolithic, self-terminating flashing membrane is ideal for tying together different roofing substrates and odd, ...

Use: JM SP Liquid Flashing Resin, when combined with primers and scrim, creates a cold applied, reinforced liquid flashing compatible with all JM single ply membranes: TPO, PVC, & EPDM.  The monolithic, self-terminating flashing membrane is ideal for tying together different roofing substrates and odd, or difficult shaped penetrations.  

Type: A two-component, polyurethane based, cold applied, liquid flashing

Color: Highly reflective white

Features:
Can be used to bind multiple substrates including metal, wood, concrete and masonry
Mostly odorless, low VOC, and solvent free
Pre-portioned and easy to use
UV and color stable

JM SP Liquid Flashing Resin Bucket 710x533

JM SP Liquid Flashing Resin Advantage Sheet

JM SP Liquid Flashing Installation Guide

Available Documents