SEMCO field notes

Guides, how-tos and fixes.

Prep, application and troubleshooting for basements, roofs, showers, pools and more, written by the team that makes SEMCO.

104 articles

Black Mold poses a health risk in basements with moisture problemsbasement

Feb 5, 2026 · 4 min read

The Hidden Dangers of Black Mold in Unfinished Basements: Health Risks and Structural Physics

An unfinished basement is not a passive storage space; it functions as an active biological reactor. Without a proper capillary break or...

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SEMCO Liquid Membrane Cool Roof Waterproofingroof

Feb 5, 2026 · 4 min read

Cool Roofs amp Energy Efficiency: Liquid Membranes for Heat Reduction

Optimizing building thermodynamics requires treating the roof as an active thermal barrier, not just a passive waterproofing layer. The application of a...

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SEMCO Liquid Membrane Waterproof Barrier

Jan 12, 2026 · 2 min read

5 Reasons SEMCO Liquid Membrane™ Is Revolutionising Liquid Waterproofing

For decades, traditional waterproofing systems such as sheet membranes and torch-on applications dominated the construction industry. While effective in the past, these systems...

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Different Substrates that SEMCO Liquid Membrane can be applied to

Jan 7, 2026 · 3 min read

What Substrates Can Liquid Waterproofing Membranes Be Applied Over?

When choosing a waterproofing solution, one of the most common questions asked by installers, builders, and DIY renovators is: “Which substrates can...

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SEMCO Liquid Membrane Window Box Waterproofing for home

Dec 16, 2025 · 2 min read

How to Waterproof a Window Box: Proven Window Waterproofing Solutions for New Construction

Windows are one of the most common sources of water intrusion in residential and commercial buildings. Without proper waterproofing, moisture can penetrate...

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Preparing Balcony and Patio with SEMCO Liquid Membranedeck

Dec 5, 2025 · 3 min read

Winter-Proofing Outdoor Living Areas: Why SEMCO Liquid Membrane Is Essential for Balconies and Patios

As homeowners across the United States prepare their properties for winter, outdoor living areas such as balconies, patios, terraces, and rooftop decks...

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DIY Basement Waterproofing Made Easy with SEMCO Liquid Membranebasement

Oct 9, 2025 · 3 min read

DIY Basement Waterproofing Made Easy with SEMCO Liquid Membrane

A wet basement isn’t just inconvenient—it can lead to serious issues like mold, mildew, and structural damage, turning your usable space into...

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SEMCO Liquid Membrane used on interior basement wall to waterproofbasement

Oct 2, 2025 · 4 min read

Why SEMCO Liquid Membrane Is the Ultimate Solution for Basement Waterproofing (and How It Protects Your Health)

When it comes to basement waterproofing, the stakes are high. A damp or leaking basement isn't just a nuisance, it can lead...

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SEMCO Liquid Membrane Retaining wall waterproofing solutionconcrete

Sep 15, 2025 · 2 min read

Retaining Wall Waterproofing Membrane & System Solutions | Prevent Water Damage

Complete Guide to Retaining Wall Waterproofing: Best Membranes & Systems for Long-Lasting Protection Retaining walls are a critical component in both residential...

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SEMCO Liquid Membrane Drywall Waterproofing

Sep 8, 2025 · 6 min read

Waterproofing Drywall: Why It’s Essential for Protecting Your Home from Moisture Damage

Drywall needs a waterproofing membrane in any area that sees regular moisture, steam or splashing, bathrooms, basements, laundry rooms and kitchens, because...

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SEMCO Fabric Reinforcement embedded in liquid membrane at a window box corner, the detail this guide covers

Sep 3, 2025 · 7 min read

How to Waterproof Window Boxes: Complete Guide to Window Waterproofing Solutions

Waterproofing a window box means coating the rough opening, the sill, and the jambs with a flexible, water-based liquid membrane before the...

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SEMCO Liquid Membrane CMU Block Waterproofingbasement

Sep 2, 2025 · 2 min read

Ultimate Guide to Waterproofing CMU Walls with SEMCO Liquid Membrane

Concrete Masonry Unit (CMU) walls are a popular choice in modern construction due to their strength, affordability, and long-lasting performance. However, CMU...

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