Fabric Reinforcement
Fabric Reinforcement
Fabric Reinforcement
Fabric Reinforcement - semcoworks
Fabric Reinforcement - semcoworks
Fabric Reinforcement

Fabric Reinforcement

Sale price$95.00
1113 reviews
1113 reviews
  • What it is: A soft, nonwoven, cloth-type reinforcing fabric (not an open-weave mesh) applied wet-in-wet with SEMCO Liquid Membrane to add strength and crack-bridging capability at corners, coves, joints, plane changes, and cracks wider than 1/4".
  • Best for: Any waterproofing installation with structural transition points — inside/outside corners, cove bases, control joints, driveway/walkway joints — or existing cracks too wide for the membrane to bridge on its own.
  • Stands out because: It's a soft, cloth-type reinforcement layer purpose-matched to SEMCO Liquid Membrane's own 1300% elongation chemistry, rather than a generic open-weave mesh tape borrowed from drywall or stucco work.
  • Keep in mind: It's used in conjunction with SEMCO Liquid Membrane, not on its own — and it stays visible if Liquid Membrane is used as a finish coat rather than fully encapsulated.
Size:6 inches x 75 feet
Quantity:
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Shipped From USA
100% Biodegradable
Low Odor & Low VOC
Made in USA

Structural Performance

  • Reinforces load-bearing waterproofing membranes at ceramic tile, stone, and brick installations.
  • Increases durability significantly at joints and corners.
  • Improves crack resistance and actively bridges existing cracks wider than 1/4".

Application Flexibility

  • Interior and exterior use.
  • Vertical and horizontal surfaces, including ceilings.
  • Available in a narrow 6" roll for spot/joint work and a wide 29.5" roll for broad-area reinforcement.

System Compatibility

  • Engineered to be used in conjunction with SEMCO Liquid Membrane specifically — a soft, cloth-type nonwoven fabric, not a generic open-weave mesh tape.
  • Fully encapsulates within two coats of Liquid Membrane for a seamless, continuous finish (or can remain visible if Liquid Membrane is used as the finish coat).
  • Purpose-built for SEMCO Liquid Membrane. Designed to be pressed into a wet coat of Liquid Membrane and encapsulated with a second coat, forming one continuous, flexible waterproofing system rather than two separately-performing layers.
  • Required at high-stress transition points. SEMCO's own installation guidance calls for it at coves, corners, and changes of plane — the places a membrane alone is most likely to fail under movement.
  • Bridges cracks a membrane can't handle solo. For cracks and control joints wider than 1/4", Fabric Reinforcement is the recommended step before recoating; narrower cracks (under 1/4") can typically be bridged by Liquid Membrane alone.
  • Works on vertical, horizontal, and overhead surfaces. Interior and exterior use, including ceilings — not limited to floors.
  • Two roll sizes for any job scale. A 6" x 75 ft roll for spot reinforcement (corners, joints, cracks) and a 29.5" x 100 ft roll for large-area reinforcement.
  • Simple wet-lay installation. No special tools or curing chemistry beyond what's already needed for a standard Liquid Membrane application.
  • Coves, inside/outside corners, and changes of plane — required by SEMCO's installation guidance wherever a waterproofing membrane changes direction or transitions between surfaces.
  • Control joints and cracks wider than 1/4" — bridges movement that Liquid Membrane alone isn't rated to absorb.
  • Driveway and walkway joints — recommended on all joints, applied 4" on each side of the joint line.
  • Basements, showers, pool decks, roofs (including RV roofs), garage floors, and concrete surfaces — referenced as a reinforcement step across SEMCO's substrate-specific installation guides.
  • Wood, cement board/Hardiebacker, metal, and brick surfaces without an existing coating — anywhere Liquid Membrane is applied and extra joint/seam/crack strength is needed.

Standard installation (corners, coves, plane changes, general reinforcement):

  1. Apply a generous, even coat of SEMCO Liquid Membrane to the area where the Fabric Reinforcement will be installed, ensuring full coverage for optimal bonding.
  2. While the Liquid Membrane is still wet, press the Fabric Reinforcement firmly onto the surface and smooth it flat, working out any air bubbles or wrinkles.
  3. Let the first coat set — SEMCO's guidance ranges from 10–15 minutes to 5–10 minutes depending on the source (see Notes below) — before applying a second coat of Liquid Membrane over the fabric to fully encapsulate it.
  4. Once that coat has dried to the touch, apply Liquid Membrane evenly over the entire surface for complete, continuous waterproofing coverage.

For cracks and control joints wider than 1/4":

  1. Apply a generous coat of SEMCO Liquid Membrane directly over the crack or joint.
  2. While still wet, press the Fabric Reinforcement over the area and smooth it flat.
  3. After the recommended set time, roll another coat of Liquid Membrane over the fabric to encapsulate it, then let it dry to the touch.
  4. Apply Liquid Membrane over the entire surrounding surface to complete the waterproofing system.

For driveway and walkway joints: Apply Liquid Membrane 4" on each side of the joint line, press the Fabric Reinforcement over the joint while wet, encapsulate with a second coat, and let it dry completely before continuing to the next step.

Note: Cracks narrower than 1/4" generally don't require Fabric Reinforcement — SEMCO Liquid Membrane can typically be applied directly over them.

PRODUCT INFO

SEMCO Fabric Reinforcement is a purpose-built reinforcing fabric designed to work wet-in-wet with SEMCO Liquid Membrane, adding load-bearing strength exactly where a waterproofing membrane needs it most: coves, corners, changes of plane, control joints, and any crack wider than 1/4". Pressed into a fresh coat of Liquid Membrane and then encapsulated with a second coat, it forms a continuous, flexible, seamless reinforcement layer that bonds to a wide variety of substrates and helps stop cracks from transferring up into the finished surface.

It's not a standalone product — it's the companion reinforcement system engineered specifically for SEMCO Liquid Membrane's crack-bridging waterproofing process, required at high-stress transition points (corners, coves, plane changes) and strongly recommended on joints, cracks, basements, driveways, walkways, pool decks, roofs, and other project types across SEMCO's installation guides.

  • Type – Reinforcing fabric — a soft, woven, cloth-type material, not an open-weave mesh (used wet-in-wet with SEMCO Liquid Membrane)
  • Size — Roll 1 – 6" x 75 ft (approx. 37.5 sq ft per roll)
  • Size — Roll 2 - 129.5" x 100 ft (approx. 245.8 sq ft per roll)
  • Used with - SEMCO Liquid Membrane (required companion product)

How Fabric Reinforcement Compares to Other Reinforcement Approaches

Fabric Reinforcement is positioned by SEMCO as the required companion to Liquid Membrane at structural transition points. Here's how that wet-lay fabric-and-membrane approach compares to skipping reinforcement altogether, or to reaching for a generic fiberglass mesh tape, based on SEMCO's own guidance and general, sourced information on crack-isolation membranes as a category (not a specific named competing product).

SEMCO Fabric Reinforcement
(with Liquid Membrane)
No Reinforcement Fabric
(Membrane Alone)
Generic Fiberglass Mesh Tape
Designed to work with the membrane's elongation ✓
Matched to Liquid Membrane's up to 1300% stretch system
N/A — relies entirely on membrane's own crack-bridging limit ✗
Not engineered for this specific membrane chemistry
Recommended for corners, coves, and plane changes ✓
Required per SEMCO's installation guidance
Real risk
Highest-movement points in an installation
Sometimes used generically, but not validated for this system
Crack-bridging capability Bridges cracks and joints wider than 1/4″ Limited to what Liquid Membrane alone can bridge (best under 1/4″) Varies widely by product; not tested against SEMCO's system
Risk of adhesion or system failure Low
When installed per instructions
Higher
At high-stress transition points without reinforcement
Uncertain — mismatched fabric/membrane bonding can affect long-term performance
Installation method Simple wet-lay: press into wet membrane, encapsulate with a second coat N/A Varies by product; may require different embedding compounds

This comparison reflects SEMCO's own installation guidance plus general, publicly available information about crack-isolation and reinforcement fabrics as a category — not a specific named competing product.

SEMCO Liquid Membrane™ is trusted by professional waterproofing contractors, builders, pool service companies, property managers, and facilities teams across the country. We offer dedicated support and volume pricing for businesses.

Benefits List

  • Volume discount pricing on 5-gallon pails and case ordersPriority technical support from application experts
  • Fast reorder history and account management
  • Co-branded project documentation and spec sheets available
  • Suitable for: waterproofing contractors, pool builders, property maintenance, HOAs, facility managers

CTAs

The full version

Detailed application instructions.

Pick your project. Every step, with the detail you’ll want while you’re actually doing it.

01 Clean the surface

Every surface needs the right cleaner pair. Here is the rule.

  • EPDM, rubber, shingle, torch-down — Prep B: Power Cleaner then Stone Soap. Power Cleaner cuts through grease, weathering and chalk; Stone Soap clears the residue and rebalances the surface pH.
  • Metal, concrete decks, gutters — Prep D: Nu-Lift then Stone Soap. Nu-Lift chemically etches the surface and lifts oxidation; Stone Soap clears the residue and rebalances the surface pH.
  • Plywood or timber — Prep E: sand with 60-grit. No cleaner; wood absorbs water.
  • Unknown coating — Prep C: Power Cleaner then Nu-Lift.
  1. Clear debris, moss and loose granules first.
  2. Apply the cleaner, work it in with a stiff brush, rinse thoroughly.
  3. Follow with Stone Soap — it clears the residue and rebalances the surface pH — then rinse again.
  4. Let it dry completely before you coat.
Silicone is the exceptionAdhesion over silicone can be unreliable. Test a small area and let it cure before doing the whole roof.
02 Reinforce every seam and penetration

You’ll need: Fabric Reinforcement · Liquid Membrane

Roofs leak at joins, not in the field. Treat every one of them before you coat the surface.

  1. Apply a generous coat of membrane along the seam, lap, edge or around the penetration.
  2. Lay Fabric Reinforcement into the wet coating and press it flat.
  3. Wait 10–15 minutes.
  4. Coat over the fabric to fully encapsulate it, and let it dry to touch.
What counts as a joinSeams and laps, fastener lines, drip edges, flashing, vent and pipe collars, skylight kerbs, HVAC curbs, and the joint where the roof meets a parapet or wall.
03 Roll two coats over everything

Each coat: 15–20 mil. Keep every coat in that range — thicker traps moisture and stays tacky, thinner leaves the membrane short of waterproof.

You’ll need: Liquid Membrane · ½" nap roller · extension pole

  1. Check the reinforced areas from step 2 are fully dry.
  2. Stir the product well — pigments settle, and unstirred product gives uneven color.
  3. Apply a thin, even coat across the entire surface.
  4. Recoat when it holds no fingerprint — roughly 25–45 minutes at 72°F.
  5. Second coat perpendicular to the first. Both coats the same day.
  6. Inspect for pinholes and thin spots; it dries lighter, which makes them easier to see.
Coat the whole fieldNot just the area you suspect. Coating everything is what removes the need to find the leak in the first place.
04 Cure — and watch the forecast

Dry to touch in about an hour. Initial cure is at least 7 days — longer with thick coats or high humidity. Apply between 50–85°F, out of direct sun.

Rain on an uncured coat means doing it againOne customer’s advice: apply at least a full day ahead of any rainfall. A roof is exposed in a way a wall never is.
Walking on itOnce fully cured, yes — for maintenance access. It isn’t intended as a trafficked deck surface.
Each coat15–20 mil · thin and even
Coverage~200 sq ft per gallon at 2 coats
Recoat windowWhen it holds no fingerprint — same day
Initial cure7 days minimum · longer if thick or humid
Temperature50–85°F · out of direct sun
Corrugated metalAdd ~25% for profile
CleanupWarm water, straight after use

Full roofs guide, calculator and kit →

Need a hand? Call 1-833-211-2297 or email info@semcoworks.com — the team will check prep, coverage and cure timing before you start.

Before you buy

The questions worth asking.

What is SEMCO Fabric Reinforcement?

Fabric Reinforcement is a reinforcing fabric embedded between coats of SEMCO Liquid Membrane to add tensile strength at seams, joints, cracks, and high-stress areas.

When should I use Fabric Reinforcement?

Use it at seams, corners, transitions, and cracks, and under ceramic tile or stone, where movement or stress could otherwise cause the membrane to fail.

What sizes does it come in?

It is available in a 6-inch by 75-foot roll for detailing seams and joints, and a 29.5-inch by 100-foot roll for larger field areas.

More questions? Browse every SEMCO FAQ.