Johns Manville APP Roofing Systems

APP is tough and economical like a thermoplastic, with the proven waterproofing of asphalt.

JM logo format A-293.pngOur APP is formulated with a premium-grade asphalt to enhance weatherability. Combined with nonwoven polyester or glass fiber reinforcements, our APP systems exhibit tremendous strength, and weatherability. 


JM APPeX


APPeX 4.5M

jm-appex-4.5M-prodImg.jpgPolyester-reinforced, APP mineral-surfaced cap or flashing sheet.

Meets the requirements of ASTM D 6222, Type I, Grade G

APPeX 4.5M is used as a cap or flashing sheet in APP multi-ply roofing systems.
Ceramic-Coated Roofing Granules: Specifically engineered for optimal embedment in the APP-blended sheet. The ceramic coating promotes excellent long-term adhesion.

APP (Atactic Polypropylene) Polymer and Asphalt Blend: Provides an extremely durable sheet with excellent weathering characteristics, flexibility and dimensional stability for ease of handling and quick installations.

Polyester Reinforcement Mat: Provides bidirectional glass-scrim reinforcement and offers robust tear strength and puncture resistance, allowing for high wind performance and excellent hail rating. The sheet also exhibits strong dimensional stability and enhanced elongation.

Polyolefin Burn-Off Film: Promotes ease of heat welding.
 


APPeX 4.5M CR G

jm-appex4.5MCRG-prodImg.jpegPolyester-Reinforced, APP Reflective Mineral-Surfaced Cool Roof Cap or Flashing Sheet

Meets the requirements of ASTM D 6222, Type I, Grade G

APPeX 4.5M CR G is used as a polyester-reinfored cool roof cap or flashing sheet in APP multi-ply roofing systems.

Reflective Roofing Granules: Specifically engineered for high reflectivity, durability and optimal embedment in the APP modified bitumen sheet.

APP (Atactic Polypropylene) Polymer and Asphalt Blend: Provides an extremely durable sheet with excellent weathering characteristics, flexibility and dimensional stability for ease of handling and quick installations.

Polyester Reinforcement Mat: Provides bidirectional glass-scrim reinforcement and offers robust tear strength and puncture resistance, allowing for high wind performance and excellent hail rating. The sheet also exhibits strong dimensional stability and enhanced elongation.

Polyolefin Burn-Off Film: Promotes ease of heat welding.


APPeX 4.5M FR

jm-appex4.5m-fr-prodImg.jpgPremium fire-retardant, polyester-reinforced, APP mineral-surfaced cap or flashing sheet.

Meets the requirements of ASTM D 6222, Type I, Grade G

APPeX 4.5M FR is used as a cap or flashing sheet in APP multi-ply roofing systems.
Ceramic-Coated Roofing Granules: Specifically engineered for optimal embedment in the APP-blended sheet. The ceramic coating promotes excellent long-term adhesion.

Premium APP (Atactic Polypropylene) Polymer, Asphalt and Fire-Retardant Blend: Provides an extremely durable sheet with excellent weathering characteristics, flexibility and dimensional stability for ease of handling and quick installations.

Polyester Reinforcement Mat: Provides bidirectional glass-scrim reinforcement and offers robust tear strength and puncture resistance, allowing for high wind performance and excellent hail rating. The sheet also exhibits strong dimensional stability and enhanced elongation.

Polyolefin Burn-Off Film: Promotes ease of heat welding.


APPeX 4.5M FR CR G

JM-APPeX-4.5M-FRCRG-prodImg.jpgFire Retardant, Polyester-Reinforced, APP Reflective Mineral-Surfaced Cool Roof Cap or Flashing Sheet

Meets the requirements of ASTM D 6222, Type I, Grade G

APPeX 4.5M FR CR G is used as a polyester-reinfored cool roof cap or flashing sheet in APP multi-ply roofing systems.

Reflective Roofing Granules: Specifically engineered for high reflectivity, durability and optimal embedment in the APP modified bitumen sheet.

APP (Atactic Polypropylene) Polymer and Asphalt Blend: Provides an extremely durable sheet with excellent weathering characteristics, flexibility and dimensional stability for ease of handling and quick installations.

Polyester Reinforcement Mat: Provides bidirectional glass-scrim reinforcement and offers robust tear strength and puncture resistance, allowing for high wind performance and excellent hail rating. The sheet also exhibits strong dimensional stability and enhanced elongation.

Polyolefin Burn-Off Film: Promotes ease of heat welding.


APPeX 4S

JM-Appex-4S-prodImg.pngPremium polyester-reinforced, APP smooth-surfaced cap or ply sheet.

Meets the requirements of ASTM D 6222, Type I, Grade S

APPeX 4S is used as a cap or base sheet in APP multi-ply roofing systems.

Premium APP (Atactic Polypropylene) Polymer and Asphalt Blend: Provides an extremely durable sheet with excellent weathering characteristics, flexibility and dimensional stability for ease of handling and quick installations.

Polyester Reinforcement Mat: Provides bidirectional glass-scrim reinforcement and offers robust tear strength and puncture resistance, allowing for high wind performance and excellent hail rating. The sheet also exhibits strong dimensional stability and enhanced elongation.

Surfacing: Fine mineral parting agent on the top of the sheet. A polyolefin burn-off film on the bottom side enables the product to be applied using heat-welding techniques.


APPeX 4S Embossed

JM-APPeX-4S-Embossed-ProdImg.jpgPremium Polyester-Reinforced, APP Smooth Cap, Ply, or Flashing Sheet

Meets the requirements of ASTM D 6222, Type I, Grade S

APPeX 4S is used as a cap or base sheet in APP multi-ply roofing systems.

Premium APP (Atactic Polypropylene) Polymer and Asphalt Blend: Provides an extremely durable sheet with excellent weathering characteristics, flexibility and dimensional stability for ease of handling and quick installations.

Polyester Reinforcement Mat: Provides bidirectional glass-scrim reinforcement and offers robust tear strength and puncture resistance, allowing for high wind performance and excellent hail rating. The sheet also exhibits strong dimensional stability and enhanced elongation.

Surfacing: Fine mineral parting agent on the top of the sheet. A polyolefin burn-off film on the bottom side enables the product to be applied using heat-welding techniques.


JM BICOR

BICOR M FR

jm-bicor-m-fr-prodImg.jpgFire-Retardant, Fiber Glass/Polyester-Reinforced, APP Mineral-Surfaced Cap or Flashing Sheet

Meets the requirements of ASTM D 6223, Type I, Grade G

BICOR M FR is used as a premium cap or flashing sheet in APP multi-ply roofing systems.

Ceramic-coated Roofing Granules: Specifically engineered for optimal embedment in the APP-blended sheet. The ceramic coating promotes excellent long-term adhesion. Granules are available in white, black and tan (Black and tan may require extended lead times).

Premium APP (Atactic Polypropylene) Polymer, Asphalt and Fire-Retardant Blend: Provides an extremely durable sheet with excellent weathering characteristics, flexibility and dimensional stability for ease of handling and quick installations.

Fiber Glass/Polyester Reinforcement Mat: Combines the excellent tensile strength, toughness and puncture resistance of a polyester mat with the dimensional stability and lay-flat characteristics of fiber glass.

Surfacing: Fine mineral parting agent on the bottom side. Enables the product to be applied in cold adhesive or heat welding techniques.


BICOR S

jm-bicor-s-prodImg.jpgPremium, Fiber Glass/Polyester-Reinforced, APP Smooth Base or Ply Sheet

Meets the requirements of ASTM D 6223, Type I, Grade S

BICOR S is used as a premium base or ply sheet in APP multi-ply roofing systems.

Premium APP (Atactic Polypropylene) Polymer and Asphalt Blend: Provides an extremely durable sheet with excellent weathering characteristics, flexibility and dimensional stability for ease of handling and quick installations.

Fiber Glass/Polyester Reinforcement Mat: Combines the excellent tensile strength, toughness and puncture resistance of a polyester mat with the dimensional stability and lay-flat characteristics of fiber glass.

Surfacing: Fine mineral parting agent on both sides of the sheet. Enables the product to be applied in cold adhesive or heat welding techniques.


JM DIBITEN

DIBITEN

JM-Dibiten-prodImg.jpgSuperior polyester-reinforced APP smooth and slate-surfaced membranes.

DIBITEN is a superior APP modified bitumen membrane reinforced with a high-quality nonwoven polyester mat and is one of the finest heat weld applied modified bitumen membranes ever produced not only for residential roofing but for commercial and industrial roofing as well. 


DIBITEN Poly 4.5 CR G

jm-dibiten-poly4.5-prodImg.jpegPremium, Polyester-Reinforced, APP Reflective Mineral-Surfaced Cool Roof Cap or Flashing Sheet

Meets the requirements of ASTM D 6222, Type I, Grade G

DIBITEN Poly/4.5 CR G is used as a polyester-reinfored cool roof cap or flashing sheet in APP multi-ply roofing systems.

Reflective Roofing Granules: Specifically engineered for high reflectivity, durability and optimal embedment in the APP modified bitumen sheet. Each pallet of Dibiten Poly/4.5 CR G contains three bags of CR G granules to dress up bleed out.

APP (Atactic Polypropylene) Polymer and Asphalt Blend: Provides an extremely durable sheet with excellent weathering characteristics, flexibility and dimensional stability for ease of handling and quick installations.

Polyester Reinforcement Mat: Provides bidirectional glass-scrim reinforcement and offers robust tear strength and puncture resistance, allowing for high wind performance and excellent hail rating. The sheet also exhibits strong dimensional stability and enhanced elongation.

Polyolefin Burn-Off Film: Promotes ease of heat welding.


JM DynaGrip

DynaGrip Base SD/SA

jm-dynagrip-base-sd-sa-prodImg.jpgSelf-adhering, fiber glass-reinforced SBS base sheet.

Meets the requirements of ASTM D 4601

Sand Top Surface: Allows for installation of a cap sheet with hot asphalt, an approved cold adhesive, or by using heat welding techniques.

High-Quality SBS Rubber and Asphalt Blend: Provides full recovery properties after 100% elongation and lends elasticity and flexibility to the sheet.

Fiber Glass Reinforcement Mat: Offers excellent dimensional stability and tensile strength and withstands differential movement.

Self Adhering Modified Bitumen: The product’s self-adhering feature with an easy-to-peel plastic film on the bottom of the sheet allows for installation without the need of hot asphalt or heat-welding.


JM DynaTred

DynaTred Walkway

jm-dynatred-walkway-prodImg.jpegPolyester-reinforced SBS base or ply sheet.

Preformed, skid-resistant roof protection pads consisting of modified asphalt, reinforcements and fillers with a ceramic granule surface on both sides. They are durable, resilient and maintenance free.

DynaTred and DynaTred Plus can be installed over built-up and modified bitumen roofing systems to provide an integral, skidresistant walkway for demanding service access needs.

Ceramic-Coated Roofing Granules: Specifically engineered for optimal embedment in the modified asphalt sheet. The ceramic coating promotes excellent long-term adhesion.

Easy Installation: Can be easily cut with a heavy-duty utility knife or circular saw with a carbide-tipped blade.

Colors: Available in either Black/White or White/White.


JM GlasBase

GlasBase Plus

jm-glasbase-plus-prodImg.jpegFiber Glass-Reinforced, SBS Modified Bitumen Base or Ply Sheet

Meets the requirements of ASTM D 4601, Type II

GlasBase Plus is intended to be used as a base sheet in built up roofing or as a base or intermediate ply in modified bitumen systems.

SBS (Styrene-Butadiene-Styrene) Synthetic Rubber and High Quality Asphalt Blend: Brings elasticity and flexibility to the sheet; lays flat virtually eliminating wrinkles resulting in fast, efficient applications.

Fully-Coated Mat: No pinholes prevent asphalt bleed-through, eliminating splitting problems associated with excessive membrane attachment to nailable decks. Excellent nail retention properties and resistance to uplift forces. Virtually eliminates wrinkling, resulting in fast, efficient applications.

Non-porous Composition: Allows the product to be used as a ply sheet in systems that employ cold process mastics such as JM BUR Adhesive.

Fiber Glass Reinforcement Mat: Low moisture, excellent dimensional stability and resistance to rot make it an ideal replacement for organic base sheets. Provides a solid dimensionally stable substrate for other roofing membrane components.

Surfacing: Fine mineral parting agent


JM GlasPly

GlasPly IV

jm-glasply-iv-prodImg.jpegFiber glass-reinforced, asphalt-coated ply sheet IV.

Material meets the requirements of ASTM D 2178, Type IV

GlasPly IV is intended for use as an interply in any built up roofing or modified bitumen roofing system.

Excellent Porosity: Easy to handle, lays flat, minimizes workmanshiprelated problems such as fishmouths, wrinkles and ridges. Allows the product to readily accept hot asphalt and disperses it throughout the entire felt, to stabilize asphalt after cooling.

Asphalt Impregnated, Fiber Glass Reinforcement Mat: Offers consistent tensile strength and tear resistance. Low moisture, excellent dimensional stability and resistance to rot make it an ideal replacement for organic ply sheets. Provides a solid dimensionally stable substrate for other roofing membrane components.

Laying Lines: Before the product is wound into rolls, it is imprinted with laying lines on the top surface so the roofing mechanic can install the felt with the proper exposure and provide the correct number of plies.

Surfacing: Liquid parting agent eliminates sticking when the felt is unrolled.


GlasPly Premier

jm-glasply-premier-prodImg.jpegPremium fiber glass-reinforced, asphalt-coated ply sheet VI.

Material meets the requirements of ASTM D 2178, Type VI

GlasPly Premier is intended for use as an interply in any built up roofing or modified bitumen roofing system.

Excellent Porosity: Allows the product to readily accept hot asphalt and disperse it throughout the entire felt, to stabilize the asphalt after cooling.

Asphalt Impregnated, Fiber Glass Reinforcement Mat: Delivers high tensile strength to resist splitting that can be caused by rooftop stresses. Low moisture, excellent dimensional stability and resistance to rot make it an ideal replacement for organic ply sheets. Provides a solid dimensionally stable substrate for other roofing membrane components.

Laying Lines: Before the product is wound into rolls, it is imprinted with laying lines on the top surface so the roofing mechanic can install the felt with the proper exposure and provide the correct number of plies

Surfacing: Liquid parting agent eliminates sticking when the felt is unrolled.


JM GlasTite

GlasTite Flexible

jm-glastite-flexible-prodImg.jpegPolyester/fiber glass-reinforced, asphalt-coated base, ply or flashing sheet.

Meets the requirements of ASTM D 4601, Type II 

GlasTite Flexible is intended to be used as a base sheet, ply sheet, or flashing membrane in built up roofing systems.

Fiber Glass/Polyester Composite Reinforcement Mat: Provides superior flexibility and conformability, making it easy and quick to install. Exceptionally high tensile strength delivers superior protection against splitting as well as excellent puncture and tear resistance to prevent damage often caused by rooftop traffic.

Ideal for Flashing Systems: Superior flexibility and conformability allows the mechanics to easily and quickly install tight flashing systems and make it ideal for all roof terminations, including parapet walls, skylights, roof penetrations, drains, vents and roof edges. GlasTite Flexible does not bridge at the cant and will not pull away from the substrate after it has been installed.

Laying Lines: Laying lines are imprinted on the top surface so the roofing mechanic can install the felt with the proper exposure and provide the correct number of plies.

Surfacing: Fine mineral parting agent


JM APP Base

JM APP Base

jm-app-base-prodImg.jpegFiber glass-reinforced APP base or ply sheet.

Meets the requirements of ASTM D 6509

JM APP Base is used as a base or ply sheet in APP multi-ply roofing systems.

APP (Atactic Polypropylene) Polymer and Asphalt Blend: Provides an extremely durable sheet with excellent weathering characteristics, flexibility and dimensional stability for ease of handling and quick installations.

Fiber Glass Reinforcement Mat: Offers excellent dimensional stability and tensile strength and withstands differential movement. Because it has no thermal memory less time is needed to relax the sheet, allowing for ease of installation. The fiber glass mat also has good lay-flat characteristics.

Surfacing: Fine mineral parting agent on both sides of the sheet. Enables the product to be applied using cold adhesive or heat welding techniques.


JM APP Base 2.0 SQ

jm-app-base-2-sq-prodImg.jpegFiber Glass-Reinforced, APP Base or Ply Sheet

Meets the requirements of ASTM D 6509

JM APP Base 2.0 SQ is used as a base or ply sheet in APP multi-ply roofing systems.

APP (Atactic Polypropylene) Polymer and Asphalt Blend: Provides an extremely durable sheet with excellent weathering characteristics, flexibility and dimensional stability for ease of handling and quick installations.

Fiber Glass Reinforcement Mat: Offers excellent dimensional stability and tensile strength and withstands differential movement. Because it has no thermal memory less time is needed to relax the sheet, allowing for ease of installation. The fiber glass mat also has good lay-flat characteristics.

Surfacing: Fine mineral parting agent on the top side of the sheet. A polyolefin burn-off film on the bottom side enables the product to be applied using heat welding techniques.


JM APP Base Plus

jm-app-base-plus-prodImg.jpegFiber Glass-Reinforced, APP Base or Ply Sheet

Meets the requirements of ASTM D 6509

JM APP Base Plus is used as a base or ply sheet in APP multi-ply roofing systems.

APP (Atactic Polypropylene) Polymer and Asphalt Blend: Provides an extremely durable sheet with excellent weathering characteristics, flexibility and dimensional stability for ease of handling and quick installations.

Fiber Glass Reinforcement Mat: Offers excellent dimensional stability and tensile strength and withstands differential movement. Because it has no thermal memory less time is needed to relax the sheet, allowing for ease of installation. The fiber glass mat also has good lay-flat characteristics.

Surfacing: Fine mineral parting agent on both sides of the sheet. Enables the product to be applied using cold adhesive or heat welding techniques.


JM BaseGrip

JM BaseGrip SD/SA

jm-basegrip-sd-sa-prodImg.jpgSelf-adhering, fiber glass-reinforced SBS base sheet.

Meets the requirements of ASTM D 4601, Type II, and D 1970

JM BaseGrip™ SD/SA is designed for use in roofing systems where two or more plies of modified bitumen are desired. It may be used as the base ply when installed over an approved substrate.

Sand Top Surface: With a self adhering side lap that aids with faster installation and ease of use. Also allows for installation of a torchable cap sheet, hot asphalt, or an approved cold adhesive. Is ideal with heat welding.

SBS (Styrene-Butadiene-Styrene) Synthetic Rubber and High Quality Asphalt Blend: Brings elasticity and flexibility to the sheet; lays flat virtually eliminating wrinkles resulting in fast, efficient applications. The elongation and recovery properties allow the product to easily accommodate the continual expansion and contraction strains experienced on all roofs.

Fiber Glass Reinforcement Mat: Offers excellent dimensional stability, tensile strength, puncture resistance, and withstands differential movement.

Self Adhering Modified Bitumen: The product’s self-adhering feature with an easy-to-peel plastic film on the bottom of the sheet and top side lap aids with faster installation without the need of hot asphalt or heat welding.


JM Vapor Barrier

JM Vapor Barrier SA

jm-vaporbarrier-sa.jpgPolyethylene-reinforced, self-adhering SBS vapor barrier.

Tri-laminate woven polyethylene, nonslip, UV-protected top surface provides temporary weather protection for 90 days. Provides high tensile strength and puncture resistance.

Self-sealing, high-quality SBS rubber and asphalt blend provides low air and vapor permeability.

Silicone release film allows for ease of self-adhering installation.


JM PermaPly 28

PermaPly 28

jm-permaply-28-prodImg.jpegFiber glass-reinforced, asphalt-coated lightweight base sheet.

Material meets the requirements of ASTM D 4601, Type II

PermaPly 28 is designed for use as the first or base sheet in built up roofing or modified bitumen roof assemblies.

Lightweight: Exceptionally pliable, easy to handle and lays flat.
Asphalt Coating: Makes it suitable as an intermediate or ply felt in cold-applied built-up and modified bitumen roof assemblies.

Ideal for Mechanical Attachment: Use where mechanical attachment of the membrane to the roof substrate or deck is desired.

Fiber Glass Reinforcement Mat: Low moisture, excellent dimensional stability and resistance to rot make it an ideal replacement for organic base or ply sheets. Provides a solid dimensionally stable substrate for other roofing membrane components.

Laying Lines: Laying lines are imprinted on the top surface so the roofing mechanic can install the felt with the proper exposure and provide the correct number of plies.

Surfacing: Fine mineral parting agent.


JM TRICOR

TRICOR M FR

jm-tricor-m-fr.jpegFire-retardant, fiber glass/polyester-reinforced, APP mineral-surfaced cool roof cap or flashing sheet.

Meets the requirements of ASTM D 6223, Type II, Grade G

TRICOR M FR is used as a premium cap or flashing sheet in APP multi-ply roofing systems.

Ceramic-Coated Roofing Granules: Specifically engineered for optimal embedment in the APP-blended sheet. The ceramic coating promotes excellent long-term adhesion. 
Premium APP Polymer and Asphalt Blend: Provides an extremely durable sheet with excellent weathering characteristics, flexibility and dimensional stability for ease of handling and quick installations. The FR blend contains additional fire-retardant additives.

Fiber Glass/Polyester Reinforcement Mat: Combines the excellent tensile strength, toughness and puncture resistance of a polyester mat with the dimensional stability and lay-flat characteristics of fiber glass.

Surfacing: Fine mineral parting agent on the bottom side. Enables the product to be applied using cold adhesive or heat-welding techniques.

Colors: Granules are available in white, black and tan. Black and tan may require extended lead times.


TRICOR M FR CR

jm-tricor-m-fr-cr-prodImg.jpegFire-retardant, fiber glass/polyester-reinforced, APP, acrylic-coated, mineral-surfaced cool roof cap or flashing sheet.

Meets the requirements of ASTM D 6223, Type II, Grade G

TRICOR M FR CR is used as a premium cap or flashing sheet in APP multi-ply roofing systems.

Ceramic-Coated Roofing Granules With Factory-Applied Cool Roof Coating: The cool roof technology combines the proven UV protection of ceramic-coated granules with a highly reflective coating, offering long-term performance and potential energy savings. 

Premium APP Polymer and Asphalt Blend: Provides an extremely durable sheet with excellent weathering characteristics, flexibility and dimensional stability for ease of handling and quick installations. The FR blend contains additional fire retardant additives.

Fiber Glass/Polyester Reinforcement Mat: Combines the excellent tensile strength, toughness and puncture resistance of a polyester mat with the dimensional stability and lay-flat characteristics of fiber glass.

Surfacing: Fine mineral parting agent on the bottom side. Enables the product to be applied using cold adhesive or heat welding.

Colors: Bright white only.


TRICOR M FR CR G

jm-tricor-m-fr-cr-g-prodImg.jpegPremium, Fire-Retardant, Fiber Glass/Polyester-Reinforced, APP Reflective Mineral-Surfaced Cool Roof Cap or Flashing Sheet

Meets the requirements of ASTM D 6223, Type II, Grade G

TRICOR M FR CR G is used as a premium fiber glass/polyester-reinforced cool roof cap or flashing sheet in APP multi-ply roofing systems.

Reflective Roofing Granules: Specifically engineered for high reflectivity, durability and optimal embedment in the APP modified bitumen sheet.

Premium APP Polymer and Asphalt Blend: Provides an extremely durable sheet with excellent weathering characteristics, flexibility and dimensional stability for ease of handling and quick installations. The FR blend contains additional fire retardant additives.

Fiber Glass/Polyester Reinforcement Mat: Combines the excellent tensile strength, toughness and puncture resistance of a polyester mat with the dimensional stability and lay-flat characteristics of fiber glass.

Surfacing: Fine mineral parting agent on the bottom side. Enables the product to be applied using cold adhesive or heat welding techniques.


TRICOR S

jm-tricor-s-prodImg.jpegPremium polyester-reinforced APP smooth-surfaced cap or base sheet.

Meets the requirements of ASTM D 6223, Type II, Grade S

TRICOR S is used as a premium base or ply sheet in APP multi-ply roofing systems.

Premium APP Polymer and Asphalt Blend: Provides an extremely durable sheet with excellent weathering characteristics, flexibility and dimensional stability for ease of handling and quick installations.

Fiber Glass/Polyester Reinforcement Mat: Combines the excellent tensile strength, toughness and puncture resistance of a polyester mat with the dimensional stability and lay-flat characteristics of fiber glass.

Surfacing: Fine mineral parting agent on both sides of the sheet. Enables the product to be applied using cold adhesive or heat welding techniques.


JM ValuWeld

ValuWeld G

jm-valuweld-g-prodImg.jpegValuWeld G incorporates the features of a non-woven polyester mat with the benefits of an APP modified asphalt.

ValuWeld G is used as a cap or flashing sheet in APP multi-ply roofing systems.

Ceramic-Coated Roofing Granules: Specifically engineered for optimal embedment in the APP-blended sheet. The ceramic coating promotes excellent long-term adhesion.

APP (Atactic Polypropylene) Polymer and Asphalt Blend: Provides an extremely durable sheet with excellent weathering characteristics, flexibility and dimensional stability for ease of handling and quick installations.

Polyester Reinforcement Mat: Offers good tensile strength, toughness and puncture resistance and can accommodate stresses created by typical rooftop expansion and contraction forces.

Polyolefin Burn-Off Film: Promotes ease of heat welding.

Colors: White and Black only.


ValuWeld S

jm-valuweld-g-prodImg.jpegValuWeld S incorporates the features of a non-woven polyester mat with the benefits of an APP modified asphalt.

ValuWeld S is used as a cap or base sheet in APP multi-ply roofing systems.

Premium APP (Atactic Polypropylene) Polymer and Asphalt Blend: Provides an extremely durable sheet with excellent weathering characteristics, flexibility and dimensional stability for ease of handling and quick installations.

Polyester Reinforcement Mat: Offers good tensile strength, toughness and puncture resistance and can accommodate stresses created by typical rooftop expansion and contraction forces.

Surfacing: Fine mineral parting agent on the top of the sheet. A polyolefin burn-off film on the bottom side enables the product to be applied using heat-welding techniques.


JM Ventsulation

Ventsulation

jm-ventsulation-prodImg.jpegFiber glass-reinforced, asphalt-coated venting base sheet.

Material meets the requirements of ASTM D 4897, Type II

Ventsulation Felt may be used as a base sheet for any built up roofing or modified bitumen roofing system to be installed over a substrate that potentially contains moisture.
1" Embossed Waffle Pattern Grid Channels: Promotes moisture vapor venting. Helps prevent blistering of asphalt-based roofs when installed over potential moisture-containing substrates such as: Re-covers over existing roof membranes, lightweight insulating fill or gypsum decks.

Fiber Glass Reinforcement Mat: Low moisture, excellent dimensional stability and resistance to rot make it an ideal replacement for organic base sheets. Provides a solid dimensionally stable substrate for other roofing membrane components.

Surfacing: Coarse minerals on one side.


Installation Supplies

Johns Manville supplies a full range of necessities for APP system installation and maintenance, including:

  • JM APP Accessories
  • Adhesives, Cleaners and Primers
  • Fasteners and Plates
  • Insulation and Coverboards

Contact Us for More Information


What's New

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Nov 26, 2018, 8:48 AM

Larimer/Shannon Group is celebrating its 15th anniversary. Together, our team has over 150 years of combined experience with products and systems associated with the commercial building envelope.…

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