Crawl Space Waterproofing and Encapsulation: A DIY Liquid Membrane Guide
Basement

Crawl Space Waterproofing and Encapsulation: A DIY Liquid Membrane Guide

A full DIY crawl space waterproofing and encapsulation walkthrough: sealing foundation walls and cracks, installing the ground vapor barrier, handling vents and penetrations, and the mistakes that ...
Resealing Your RV Roof Before Winter Storage: Water-Based Membrane vs Rubber-Based Coatings
Comparison

Resealing 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 the comparison, the real recoat process, and the mistake that c...
SEMCO Liquid Membrane applied to an interior basement wall
basement

SEMCO 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.
Rolling SEMCO Liquid Membrane over taped drywall seams on drywall
DIY

Is Drywall Actually Waterproof? The Myths DIYers Get Wrong

Green board, cement board, and paint don't make drywall waterproof. Here's what actually stops water, and how to seal it yourself.
Damp basement cinder block wall with white efflorescence, dark water stains, and a puddle on the concrete floor
basement waterproofing

Is Your Basement Waterproofing Membrane Actually Failing? 7 Warning Signs

Peeling, chalky white powder, or a musty smell after basement waterproofing? Here are 7 warning signs your coating is failing, and how to fix it.
SEMCO Liquid Membrane sealing seams on a metal roof before winter rain
DIY

Metal Roof Leaking? How to Find and Seal It Before Winter Rain

Metal roof leaking when it rains hard? Here's how to find the real leak point and seal it yourself with a flexible membrane before winter.
SEMCO Liquid Membrane, a flexible water-based liquid rubber alternative
comparison

Liquid 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 membranes, and which lasts longest.
SEMCO Fabric Reinforcement roll used for reinforcing waterproofing membrane at joints and cracks
DIY

What Is SEMCO Fabric Reinforcement and When Do You Actually Need It?

SEMCO Fabric Reinforcement adds tensile strength at floor-to-wall joints, corners, coves, and cracks over 1/4 inch, the spots a waterproofing coating fails first. Here's what it is, when you need i...
SEMCO Liquid Membrane rolled onto shower walls before tiling
bathroom

What 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 in materials for a standard shower. Here's the real...