SEMCO field notes
diy guides.
Prep, application and troubleshooting for basements, roofs, showers, pools and more, written by the team that makes SEMCO.
29 articles
cleanerWhy Surface Prep Makes or Breaks Your Waterproofing Job (And How to Do It Right)
Skipping surface prep is the top reason DIY waterproofing fails. Here's how to clean, degrease, and prep any surface before you coat...
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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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bathroomShower Waterproofing Membrane: The Complete DIY Guide Before Tiling
Tile and grout aren't waterproof on their own. Here's how to waterproof a shower before tiling with a DIY liquid membrane, seam...
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basementHow to Waterproof a Basement From the Inside: The Complete DIY Guide
Step-by-step guide to waterproofing a basement from the inside: what you need, crack repair, coating steps, cost, and when to call a...
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plywoodIs Your Plywood Actually Waterproof? What to Use Before It Rots
No plywood is waterproof out of the box, even the sheets labeled "exterior grade." Exterior and marine plywood use water-resistant glue between...
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