SEMCO field notes
Comparisons guides.
Prep, application and troubleshooting for basements, roofs, showers, pools and more, written by the team that makes SEMCO.
11 articles
basementBasement Waterproofing Membrane: Water-Based vs Silicone-Based vs Rubber-Based (Complete Comparison)
Compare water-based, silicone-based, and rubber-based basement waterproofing membranes on cure time, elongation, odor, and cost so you pick the right one.
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comparisonWhy Does My Waterproofing Membrane Smell So Strong? Water-Based vs Rubber-Based Odor Compared
Waterproofing membrane smell explained: why water-based and rubber-based coatings smell different, how long odor lasts, and when it signals a real problem.
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comparisonResealing Your RV Roof Before Winter Storage: Water-Based Membrane vs Rubber-Based Coatings
Should you reseal your RV roof before winter storage, and is a water-based membrane or a rubber-based coating the better call? Here's...
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basementSEMCO Liquid Membrane vs Rubber-Based Waterproofing Coatings: Which Is Better for Basements and Foundations?
SEMCO Liquid Membrane vs rubber-based waterproofing coatings for basements and foundations: odor, cure time, flexibility, and cost compared side by side.
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comparisonLiquid Rubber Alternatives: A Longer-Lasting Way to Waterproof
A flexible, water-based liquid waterproofing membrane is the best liquid rubber alternative. See how it compares to rubber, masonry, silicone and sheet...
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bathroomWhat Does It Cost to Waterproof a Shower Before Tiling? 2026 DIY vs Pro Breakdown
Professional shower waterproofing runs $450 to $2,500 depending on scope. A DIY liquid membrane and fabric reinforcement costs about $150 to $200...
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basementWater-Based Membrane vs Rubber-Based Coating for Basement Walls: Which One Actually Stops Water
Comparing water-based liquid membrane and rubber-based coatings for basement waterproofing: odor, UV exposure, cure time, and which one belongs on an exposed...
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bathroomWater-Based Membrane vs Silicone-Based Coating: Which Belongs in a Shower
Silicone-based coatings and a water-based liquid membrane both waterproof a shower before tile. Here's how they compare, by scenario, cure time, and...
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basementWater-Based vs Silicone-Based Basement Waterproofing: The Full Comparison
Water-based liquid membrane and silicone-based coatings both waterproof a basement, but they're built for different jobs. Here's the full comparison, by scenario.
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comparisonWater-Based Membrane or Silicone-Based Coating: Which Belongs on a Metal Roof
Silicone-based coatings and rubber-based coatings both work on metal roofs, but each comes with real trade-offs in odor, cure conditions, and flexibility....
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comparisonSilicone-Based Waterproofing Coatings vs Water-Based Membranes: A DIYer's Guide
Silicone-based waterproofing vs water-based membranes compared on cure time, adhesion, elongation, and cost, so you use the right one for your project.
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