Building a shower curb, also known as a shower threshold, is a crucial step in installing a shower. It not only adds a finished look to your shower but also serves practical purposes like preventing water from spilling out into the bathroom. Here's a comprehensive guide on how to build a shower curb, ensuring a safe, waterproof, and stylish result.
Before you start, ensure you have the right tools and materials. You'll need a trowel, level, tape measure, rubber gloves, safety glasses, and a shower curb kit that includes the curb itself, mortar, and waterproofing membrane.
Understanding Shower Curb Types
Shower curbs can be made from various materials, each with its pros and cons. Understanding these can help you choose the right one for your project.
1. **Pre-formed Plastic Curb**: These are lightweight, easy to install, and come in various sizes. However, they may not be as durable as other options and may not fit perfectly with your shower pan.
Pre-formed Plastic Curb Installation
To install a pre-formed plastic curb, first, ensure your shower pan is level and the curb fits snugly. Apply a bead of silicone caulk along the bottom of the curb, then press it firmly into place. Allow the caulk to cure before using the shower.
2. **Concrete Curb**: Concrete curbs are durable, customizable, and can be made to match the style of your bathroom. However, they require more skill and time to install.
Concrete Curb Installation
To build a concrete curb, start by mixing concrete according to the package instructions. Apply a waterproofing membrane to the area where the curb will be. Then, using a trowel, spread the concrete to the desired thickness and shape. Allow it to cure for at least 24 hours before using the shower.
Waterproofing Your Shower Curb
Waterproofing is a critical step in shower curb installation. A properly waterproofed curb prevents water from seeping into the surrounding area, which can lead to mold, mildew, and structural damage.
1. **Applying a Waterproofing Membrane**: Before installing the curb, apply a waterproofing membrane to the area. This can be done using a trowel or a notched spreader. Ensure the membrane extends at least 2 inches up the wall and onto the shower floor.
Sealing the Curb
After the curb is installed, seal the top and sides with a silicone-based caulk. This creates an additional barrier against water and helps to prevent mold and mildew growth. Allow the caulk to cure completely before using the shower.
Building a shower curb is a rewarding DIY project that can significantly enhance the look and functionality of your bathroom. With the right materials and a bit of patience, you can create a durable, waterproof, and stylish shower curb that you'll enjoy for years to come.