MFM Building Products, founded in 1961, is a manufacturer of self-adhering waterproofing membranes for the residential and commercial roofing marketplace. Our product line includes low-slope roofing membranes, steep-slope roofing underlayments, and roof flashing products and specialty tapes. Roofing contractors depend on MFM’s experience and quality products to bring value to each and every project. Whether it is new construction, re-roofing, or roof repair, our membranes provide complete waterproofing protection.

All of our products are easy to use, self-seal around roofing fasteners, and come with a rock-solid warranty. MFM manufactures all of our products in Coshocton, Ohio, and are available through roofing and building product distributors throughout the United States.

You can also request a FREE sample of our stocked items through the website. Rely on MFM Building Products for the best waterproofing and sealing solutions available.

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FutureFlash®

FutureFlash® is a 25 mil or 40 mil, mechanically-attached, prefabricated waterproofing membrane designed for use around windows and doors, under stucco and other exterior wall systems.

The product may be used to strip in the flanges of wood, metal and vinyl windows or as a flashing wherever a uniform, dependable waterproofing barrier is required. FutureFlash® is constructed of two high-performance films with a core of specially formulated rubberized asphalt sandwiched between them. The polyethylene film is tough and resistant to tear. The polyester film adds dimensional stability to the product.

The FutureFlash® System uses a combination of the FutureFlash® waterproofing membranes and FutureFlash® Sealant. By utilizing all aspects of the system, it provides an effective barrier against moisture penetration. FutureFlash® Sealant is a high-quality, polyurethane caulk that has been specially formulated to aggressively bond to the membranes, as well as adjoining building materials. 

FUTUREFLASH® FEATURES

• Maximum waterproofing around windows and doors

• Economical leak prevention system - ties windows and doors into the building system

• Rubberized core self-seals around mechanical fasteners

• Resists water and wind damage before and after stucco is installed

• Unique "weep" characteristics allow structure to breath

• Will not wick moisture like fiber reinforced products

• Extremely strong - resists tearing under extreme conditions

• Highly flexible and elongation properties

• Film backing eliminates any potential odors

• Ideal for new or remodeling construction projects

• 10-Year Warranty when using FutureFlash® Sealant

FUTUREFLASH® APPROVALS

• ICC-ES ESR 2783

• LA County (LARC/LABC)

• State of California (CRC/CBC)

• Uniform Building Code Section #1 707(b)

Find your FutureFlash Rep!

IB-3 StormStopper Plus

IB-3™ StormStopper Plus is a self-adhering, 50 mil, mineral surface roofing underlayment for use under shingles, tile, and other types of roofing. It is constructed from a strong layer of mesh bonded to rubberized asphalt and coated with black stone granules. Comes with a non-removable selvedge edge for a secure seal on overlaps and an advanced adhesive system for a tight bond to the roofing substrate.

IB-3™ StormStopper Plus installs under roofing at the edges and valleys to protect from leaks due to ice dams, storms, frost, and blowing rain. IB-3™ StormStopper Plus is suitable for use in new construction and re-roofing applications.

IB-3™ STORMSTOPPER PLUS FEATURES

• 50 mil nominal thickness
• Advanced adhesive system for aggressive adhesion to the roofing substrate
• Non-removable selvedge edge for secure seal on overlaps
• Installs in temperatures above 40°F
• Minimum slope for installation is 2" per foot
• Applies easily at eaves, valleys, vents, skylights and chimneys
• Easy to remove split release liner for fast installation and ideal for valley applications
• Self-seals around common fasteners
• May be left exposed for up to 30 days
• 5-Year limited warranty

Request a free sample!

Waterproof HVAC Pipes & Ducts with FlexClad® Jacketing System

FlexClad is a more efficient system than other types of jacketing systems on the market. Designed specifically for HVAC ductwork and piping, it is a water and weather-resistant, pre-fabricated, self-adhering, sheet-type protective membrane. The top surface is UV-resistant embossed aluminum that can be left exposed indefinitely, reflects heat and can aid in reducing energy costs.

The membrane is UV-stable and can be left exposed to the elements indefinitely. The cross-laminated aluminum surface is tough, durable, and resists punctures. The membrane is also self-sealing around common fasteners to maintain the waterproof barrier.

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SubSeal-40™

SubSeal-40 is a prefabricated, 40 mil self-adhering sheet-type waterproofing membrane. It is composed of a tough multi-layer high-strength polymer film that is coated with a layer of specially formulated rubberized asphalt adhesive. A release liner protects the asphalt and is removed as the membrane is installed. Mastic selvedge on both edges for improved sealing.

SubSeal-40 Is Designed For Extreme Moisture Protection

SubSeal-40 is engineered to be a multipurpose waterproofing sheet suitable for above and below grade, as well as vertical or horizontal applications.

Intended uses include:

• Foundation walls
• Through-wall flashings
• Plaza and balcony decks
• Parking garages
• Sills, pot shelves, pony walls and parapets
• Floor and planter structures
• Under stucco
• Sealing SIPS building panels or DensGlass®
• Around windows and door frames

Learn more.

Find-A-Rep

MFM works with an extensive network of independent sales representatives that cover the US and Canada. We have close to 70 individual representatives that live and work in the states they represent to give our customers the best support possible.

To find a local sales rep, visit our Find-A-Rep web page that provides 24/7 access. Information available includes representative name, cell phone and email address. We pride ourselves in giving our customers someone local to talk to.

Find a local rep today!

Premium HT Tile & Metal™

Premium HT Tile & Metal™ is a 60 mil, self-adhering roofing underlayment composed of a high-grade, reinforced polyester fabric laminated to a HIGH TEMPERATURE rubberized aggressive asphalt adhesive system. It also features a fiberglass-reinforced core. Premium HT is engineered for whole roof protection under tile and metal roofing systems. Premium HT Tile & Metal™ bonds to the substrate and seals around fasteners to limit damage caused by water penetration or leaks. It will withstand high temperatures and bonds well with foam adhesive systems and traditional nail-down tile roofs. Product comes with a split release liner for easy installation in valleys, ridges and around chimneys.

• Rated for High Temperature applications up to 250°F
• Non-slip polyester surface for excellent foot traction
• Single-ply installation direct to roof deck surface
• High elongation and flexible to accommodate expansion and contraction
• Install in temperatures at or above 50°F
• Seals out water to prevent damage
• Minimum roof slope of 3:12 is required (check local building codes for required roof slope)
• Maximum tile stack of 8 tiles on a 6:12 pitch
• May be exposed for 180 days
• Aggressively adheres to plywood, metal and most building materials

Learn more.

WindowWrap PowerBond®

WindowWrap PowerBond® is a leading edge, 25 mil self-adhering waterproofing tape that features an exclusive, patented* PowerBond™ adhesive system to aggressively adhere in temperatures as low as 25°F.

Designed for use around windows, doors, building seams and general construction. It is composed of a silver polymer film that is coated with aggressive PowerBond™ Adhesion Technology. This advanced system prevents damage caused by water and moisture penetration.

• Silver polymer film is coated with an aggressive PowerBond™ adhesive system to adhere in temperatures as low as 25°F

• Advanced tape system bonds to all common window and building materials for a watertight seal

• Prevents water, air, insect and noise infiltration to prevent the potential of mold or mildew formation

• Self-seals around punctures, nails and mechanical fasteners

• Easy to remove release liner for quick installation

• May be left exposed for 180 days

• The PowerBond™ adhesive will not crack or dry-out

WindowWrap PowerBond® Application Uses Include:

• Flashing on the window sill to protect against moisture penetration

• Flash window flanges to the building wall in new and remodeling construction

• Seal around doors, under siding, exterior plaster, sill plates and wall joints

Scroll to the bottom for your free sample!

Purchase today!

MFM Wind & Water Seal™

This is a 40 mil, self-adhering roofing underlayment composed of a non-slip polymer film laminated to a high-temperature rubberized asphalt adhesive.  A split release film protects the adhesive and is removed as the underlayment is installed.

MFM Wind & Water Seal™ is engineered for use under all roofing materials including metal, asphalt shingles, shake or concrete shingles, and clay tiles. MFM Wind & Water Seal™ adheres aggressively to most clean, dry substrates including metal, plywood, OSB, foam insulation, house-wrap, rigid vinyl and masonry.

• Composed of a non-slip, polymer film

• Engineered for use under all roofing materials

• Single-ply installation direct to the roof deck surface

• Rated for HIGH TEMPERATURE applications

• Ideal for secondary water resistance

• Install in temperatures at or above 50°F

• Self-sealing around fasteners

• Minimum slope for installation is 2" per foot

• Protects from leaks caused by ice dams and wind-driven rain

• May be left exposed for 60 days

• Comes with a 10-Year Warranty

Scroll to the bottom of this page for your free sample.

Purchase today!

RidgeSeal Self-Adhearing Hip & Ridge Tape

RidgeSeal™ (35 mil) provides a superior waterproofing barrier for use when installing concrete, clay, and synthetic hip & ridge tiles. It eliminates costly mortar applications to critical hip and ridge areas where blowing rain can enter.

The superb flexibility makes application proceed quickly, while the self-sealing qualities of RidgeSeal™ create an excellent weather- and insect-blocking barrier. And because of its strength, composition and durable UV-resistant surface, RidgeSeal™ can be left exposed after application, and prior to the installation being completed, for up to six months.

RidgeSeal™ PowerBond™ offers the same composition as RidgeSeal, but comes with our patented PowerBond™ adhesive system. PowerBond is a unique two-part adhesive that allows the membrane to aggressively adhere in temperatures as low as 25°F, while remaining stable at elevated temperatures. Recommended for use when the installation temperature is below 50°F.

RidgeSeal™ comes with a 5-Year limited warranty. RidgeSeal™ PowerBond™ comes with a 10-Year limited warranty.

Scroll to the bottom of this page for your free sample.

Purchase today!

Purchase MFM Building Products Peel & Seal PowerBond White 250 Today!

Peel & Seal PowerBond White 250 is a 25 mil patented cross-linked waterproofing tape with a highly aggressive PowerBond adhesive system that adheres in cold temperatures down to 25°F (-4°C). Peel & Seal PowerBond White 250 is thinner and more aggressive than normal Peel & Seal, making it easier to install. It is specifically designed to tape seams on insulated aluminum panels or can be used as a flashing material for roof and gutter repair, window flashing and as a general-purpose waterproofing product. Peel & Seal PowerBond White 250 may be left exposed to sunlight indefinitely.

Scroll to the bottom of this page for your free sample.

Purhcase today!

The Early 1900s Building That This Company Calls Home 

2021 marked the 60th anniversary for MFM Building Products. The company, founded in 1916, celebrated the longevity and legacy of their company, but their corporate headquarters have existed for nearly twice as long! The Eldridge-Higgins Building that MFM calls home is a historic building on the National Registry of historic places. With MFM’s Expansion Project in 2021 marking their 60th anniversary, new offices in the main headquarters building were constructed and a new, state-of-the-art Research & Development laboratory was added to the historic site MFM calls home. 

Read more about our historic building. 

DeckWrap PowerBond

DeckWrap PowerBond® is a self-adhering waterproofing membrane that protects the surface of the wood with a layer of our patented PowerBond™ adhesive system. The asphalt adhesive self-seals around nails, screws, punctures and other fasteners to maintain a waterproof barrier.

DeckWrap PowerBond® Features:

• PowerBond™ adhesive aggressively adheres in temperatures as low as 25°F (-4°C)

• Prevents the degradation and rot of the wooden support structure and posts

• Ideal for professionals and DIY’ers

• Can be used with treated, untreated or synthetic wood products

• Extends the life of decks and posts

Scroll to the bottom for your free sample!

WindowWrap® PSX-20

WindowWrap® PSX-20 is a patented, self-adhering 25   mil waterproofing flashing tape constructed of a tough,   aluminized, multi-layer polymer film. It is coated with a  specially formulated rubberized asphalt to stand up to UV exposure.

WindowWrap® PSX-20 effectively stops water leaks around windows and doors while reducing outdoor noise and air infiltration.The aggressive adhesive securely bonds the window flange to the exterior wall, and the rubberized asphalt self-seals around nails and staples.

PRODUCT FEATURES

• Silver polymer construction resists exposure to ultraviolet rays and may be left exposed for 180 days

• Aggressive Broad Temperature Spectrum (BTS) adhesive adheres to common window and building materials and remains flexible in low temperatures

• Thin, flexible and self-seals around fasteners

• Excellent flashing around windows, doors, joints, vents and other exterior openings

Scroll to the bottom for your free sample!

Ultra HT Wind & Water Seal® High Temperature

The best roof protection under the sun. Regardless of the project, big or small, commercial or residential, Ultra HT is the premium high temperature, self-adhering underlayment engineered to take on any roof application. 

• High temperature raised up to 250° F

• Non-slip, cross-laminated construction

• Self-seals around roofing fasteners

• Split release liner for easy valley installation

Give your project the best protection before, during, and after installation of the final roofing system.

Peace of mind you and your customer will appreciate. 

View the Ultra HT Wind & Water Seal High Temperature brochure.

Peel & Seal: Self-Stick Roll Roofing

Peel & Seal® is the original, self-stick roll roofing specifically designed for low slope residential and commercial applications. Composed of an exclusive formula (consisting of laminated aluminized foil, high-density polymer films and a thick layer of rubberized asphalt), Peel & Seal® provides a long lasting, durable, maintenance-free roofing surface.

PEEL & SEAL® FEATURES

• Single-ply, direct-to-deck installation

• No torches, mops, glues or fasteners required

• Designed to be left exposed indefinitely to the elements

• Maintenance-free, tough, durable aluminum surface

• Adhesive system will not crack or dry-out

• Surface reflects heat keeping internal temperatures cooler

• Available in four color options and seven width sizes

Scroll to the bottom for your free sample!

Roof Deck Tape

Roof Deck Tape™ is a 40-mil, self-adhering tape composed of a non-slip film coated with an aggressive asphalt-based adhesive system. The adhesive is protected by a disposable release liner, which is removed prior to application.

Use Roof Deck Tape to tape all joints and seams of a roof deck, preventing water, air and moisture from entering the structure. Once the joints and seams are taped, the roof may be covered with roofing felt, a synthetic underlayment or self-adhering underlayment like those offered by MFM. Some building codes require a roof deck seam tape when used under roofing felt or synthetic underlayment.

The aggressive asphalt-based adhesive used in Roof Deck Tape self-seals around roofing fasteners such as nails, screws and staples to maintain a waterproof barrier. Additionally, it readily sticks to plywood, OSB, rigid foam insulation, metal and other common roof deck materials.

Roof Deck Tape may also be used to prepare a low-slope substrate for Peel & Seal® by taping wider than normal joint and seam gaps. Roof Deck Tape is the easy-to-use and economical way to prevent water from leaking into the building between the roof deck panels!

Scroll to the bottom for your free sample!

Purchase the Roof Deck Tape.

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Self-Adhering ShingleStarter

ShingleStarter® is a self-adhesive, 50 mil membrane that eliminates the need to cut shingle tabs saving the roofing contractor valuable time and money. ShingleStarter® comes with a sealing strip to prevent wind uplift at the roof edge.

The peel and stick application allows fast installation, saving time and labor. The membrane is waterproof and self-sealing around nails and other penetrations. ShingleStarter® may be adhered directly to the roof deck or to Wind & Water Seal™ self-adhering underlayments.

Scroll to the bottom for your free sample!

Purchase the ShingleStarter.

Ultra HT Wind & Water Seal®

Ultra HT Wind & Water Seal® is a 45 mil, self-adhering roofing underlayment composed of a white, non-slip, cross-laminated polymer film, laminated to a HIGH TEMPERATURE rubberized aggressive asphalt adhesive. Product is engineered for whole roof protection under shingle, tile, shake and metal roofing systems.

Ultra HT Wind & Water Seal® bonds to the substrate and seals around fasteners to limit damage caused by water penetration or leaks. It is ideal for secondary water resistance with proper roof ventilation. Product comes with a split release liner for easy installation in valleys, ridges and around chimneys.

Scroll to the bottom for your free sample!

Purchase the Ultra HT Wind & Water Seal.

Quality and Commitment

MFM Product Quality

Each of our products are tested and re-tested to ensure that they exceed your expectations for performance and reliability. Our in-house testing facility and strict manufacturing practices are focused on providing our customers with a consistent product, pallet after pallet, box after box.

MFM Commitment to Lowering Costs

At MFM, we continually investigate more effective materials and manufacturing procedures to keep our costs as low as possible. One way to provide our customers with the highest value is by making our products easy to install. Eliminating additional steps or procedures can significantly lower your labor and material costs to add more to the bottom line.

MFM – A Solutions Provider

Our skilled sales force is knowledgeable and experienced in the construction industry and can recommend the right MFM product for your application. Contact one of our professionals today on our FIND A REP page or by calling 800-882-7663 for the right solution to your waterproofing or weather barrier needs.

Latest Promotions and Rebates

Discover the FutureFlash® System and provide a barrier against moisture penetration!

FutureFlash® is a 25 mil or 40 mil, mechanically-attached, prefabricated waterproofing membrane designed for use around windows and doors, under stucco and other exterior wall systems. The product may be used to strip in the flanges of wood, metal and vinyl windows or as a flashing wherever a uniform, dependable waterproofing ...
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IB3 StormStopper Plus is the solution for storms, ice dams, melting snow, and blowing rain!

IB-3 StormStopper Plus installs under roofing at edges, valleys and whole roof applications to protect from leaks due to ice dams, melting snow and blowing rain. The underlayment is suitable for use in new construction and re-roofing. Apply directly to the roof deck at eaves, valleys, vents, skylights and chimneys. ...
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Latest Spanish Content

MFM Building Products: Peal and Seal Self-Stick Roofing Solutions in Spanish

MFM Building Products is proud to present Peel & Seal Peel® Self-Stick Roofing Solutions in Spanish! Peel & Seal® is the original self-stick roll roofing specifically designed for low slope roofing applications. Composed of an exclusive formula, Peel & Seal® provides a long-lasting, durable, maintenance-free roofing surface. Learn More About ...
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Latest Canada Content

MFM Building Products: WindowWrap® Window and Door Flashing System Documents in French

WindowWrap® is a self-adhesive, self-sealing waterproofing tape to bring quality, versatility and value to any building application. These advanced flashing solutions are the ultimate defenders against wind and water penetration. Read the product brochure. View the technical data sheet. Read the application instructions.
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MFM Building Products: WindowWrap® Window & Door Flashing System in French

MFM Building Products is proud to present WindowWrap® Window & Door Flashing System in French! WindowWrap® is a self-adhesive, self-sealing waterproofing tape to bring quality, versatility and value to any building application. These advanced flashing solutions are the ultimate defenders against wind and water penetration. Learn More by Downloading the WindowWrap® ...
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MFM Building Products: Peal and Seal Self-Stick Roofing Solutions in French

MFM Building Products is proud to present Peel & Seal Peel® Self-Stick Roofing Solutions in French! Peel & Seal® is the original self-stick roll roofing specifically designed for low slope roofing applications. Composed of an exclusive formula, Peel & Seal® provides a long-lasting, durable, maintenance-free roofing surface. Learn More About ...
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FutureFlash® is a 25 mil or 40 mil, mechanically-attached, prefabricated waterproofing membrane designed for use around windows and doors, under stucco and other exterior wall systems. The product may be used to strip in the flanges of wood, metal and vinyl windows or as a flashing wherever a uniform, dependable waterproofing ...
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SubSeal-40 is a prefabricated, 40 mil self adhering sheet-type waterproofing membrane. It is composed of a tough multi-layer high-strength polymer film that is coated with a layer of specially formulated rubberized asphalt adhesive. A release liner protects the asphalt and is removed as the membrane is installed. Mastic selvedge on ...
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WindowWrap PowerBond Shrink-Wrapped rolls are labeled for individual sale. Product is a self-adhering 25 mil waterproofing flashing tape constructed of a tough, aluminized, multi-layer polymer film. It is coated with a patented PowerBond adhesive system that allows the product to be applied in temperatures as low as 25°F (-4°C), while ...
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MFM Building Products Video Playlist

See all MFM Building Products videos and subscribe to their YouTube channel HERE. Learn more about MFM Building Products by visitng their RCS Directory Here. MFM Ultra HT Wind & Water Seal Hi-Temp Underlayment Peel & Seal Low Slope Roofing Membrane WindowWrap Installation Video WindowWrap - How to Properly Flash a Window FlexClad HVAC Duct Jacketing ...
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