Render / Stucco

Render / Stucco covers exterior cement-based finishes that protect walls and make them look good for years.

I write about substrate prep, lath and base coats, mixing, application techniques, control joints, curing, waterproofing details, and patch repairs. You’ll also see guides on diagnosing problems like cracking, hollow spots, moisture damage, and delamination.

If you’re working on an exterior wall finish, start here—prep and detailing matter more than people think.

Worker applying stucco plaster onto wall with trowel

Stucco Movement Joints: Spacing Rules, Joint Profiles, and Sealant Detailing That Lasts

Introduction Movement joints in stucco are intentional gaps that let the plaster move with temperature and framing shifts. They help prevent cracks by giving the wall a controlled place to flex, not tear. Check local building rules and follow manufacturer instructions for spacing and placement in your area. There are different joint profiles and sealants, […]

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Orange road work ahead sign with workers in safety gear

Ferrocement Repair Shells: When They Work, How to Build Them, and How They Fail

Introduction A ferrocement repair shell is a thin, reinforced mortar skin applied over a frame to repair or rebuild a boat or similar surface. Work is done in stages—from prep to application to curing—and relies on a solid bond to the existing substrate. This article walks you through what you need to know to decide

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Corner of foam insulation covered with metal wire lath for stucco

Inside Corner Stucco Cracks: Reinforcement details that reduce repeat cracking

Introduction Reinforcement details inside a corner of stucco help prevent cracks from redeveloping. This article gives practical, home-friendly ways to strengthen the joint as you repair. Think of it as a light rebuilding of the corner so movement from framing or temperature doesn’t keep tearing at the surface. Start by inspecting the crack and removing

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