Keep Cold Air Out and Comfort In with SEMCO Liquid Membrane
As temperatures plummet and winter storms roll in, your exterior walls and windows become the frontline of defense against cold air, moisture intrusion, and energy loss. Cracks, gaps, and aging seals can compromise your home’s thermal envelope — leading to higher energy bills and uncomfortable drafts. SEMCO Liquid Membrane offers a cutting-edge, durable solution to weatherproof your home and enhance its energy efficiency year-round.
Why Traditional Caulks and Paints Fail in Harsh Weather
Over time, traditional caulking and paint degrade, especially in extreme freeze-thaw climates. Caulks shrink, crack, and lose elasticity. Paint flakes and peels, exposing substrates to wind-driven rain, snow, and freezing air. These vulnerabilities around windows, door frames, and siding joints become pathways for water infiltration and heat loss.
SEMCO Liquid Membrane eliminates these weak spots with a seamless, flexible waterproof barrier that stands up to winter’s worst — without cracking, peeling, or shrinking.
Seamless Air and Water Barrier in a Single Application
What sets SEMCO apart is its dual performance as both a liquid waterproofing membrane and an air-sealing solution. When applied around window frames, wall penetrations, and building joints, SEMCO forms a continuous, breathable seal that:
-
Blocks air leaks and drafts
-
Prevents water intrusion
-
Improves insulation performance
-
Enhances indoor comfort and energy savings
This single-step system simplifies installation and delivers long-term protection — making it ideal for both new construction and retrofit weatherproofing projects.
Universal Adhesion for All Common Exterior Surfaces
One of SEMCO's standout features is its excellent adhesion to diverse building materials. Whether your exterior is:
-
Stucco
-
Brick
-
Fiber cement siding
-
Vinyl
-
Wood
-
Concrete
SEMCO Liquid Membrane bonds securely without the need for primers or additional treatments. Its versatility means you can use it across the entire exterior envelope, ensuring consistent, high-performance sealing across all surfaces.
Safe, Eco-Friendly, and Low-VOC — Ideal for Interior Use Too
Unlike many sealants and coatings, SEMCO is low-VOC and non-toxic, making it safe for both outdoor and interior sealing applications. Use it with confidence for:
-
Sealing around interior window frames
-
Winterizing cold basement walls
-
Prepping wall cavities before insulation
This environmentally responsible formulation makes SEMCO a smart choice for health-conscious homeowners and sustainable building practices.
Year-Round Protection from Water, Air, and UV Exposure
In climates prone to heavy snow, driving rain, and extreme temperature swings, SEMCO delivers robust protection. Its UV-stable, breathable membrane:
-
Resists mold and mildew
-
Prevents condensation buildup
-
Shields vulnerable areas like chimney flashing, vents, and roof-to-wall joints
Want to go further? Layer SEMCO beneath exterior insulation or pair it with energy-efficient window films to increase R-value and reduce utility costs.
Stop Re-Sealing Every Season — Start Sealing Smarter
Say goodbye to temporary solutions like plastic window film and endlessly reapplying caulk. SEMCO Liquid Membrane is a long-lasting, professional-grade weatherproofing system that protects your home from the elements while lowering your energy bills.
Upgrade Your Exterior with SEMCO:
-
✅ Seamless air & moisture barrier
-
✅ Compatible with all exterior surfaces
-
✅ Flexible and durable in extreme weather
-
✅ Safe for indoor and outdoor use
-
✅ Boosts energy efficiency
Get Started Today
Ready to protect your home from cold air, leaks, and energy waste? Choose SEMCO Liquid Membrane for reliable exterior wall and window sealing — built to last through every season.
