Dual Shower Heads On Exterior Walls: Installation Guide And Tips

how to have two shower heads on outside walls

Installing two shower heads on outside walls can be a practical and luxurious addition to your outdoor space, ideal for rinsing off after swimming, gardening, or outdoor activities. To achieve this, you’ll need to plan carefully, ensuring proper plumbing access and compliance with local building codes. Start by identifying the water source, which could be an existing outdoor faucet or a new supply line connected to your home’s plumbing system. Use a T-fitting to split the water supply into two separate lines, each leading to its own shower head. Choose weather-resistant materials, such as stainless steel or brass, to withstand outdoor conditions. Install shut-off valves for each shower head to control water flow independently. Finally, ensure proper drainage to prevent water pooling, and consider adding a mixing valve to regulate water temperature if using hot water. With the right tools and planning, you can create a functional and convenient outdoor shower setup with dual heads.

Characteristics Values
Plumbing Configuration Requires a dual shower valve or diverter valve to control water flow to both shower heads independently.
Water Pressure Ensure sufficient water pressure to supply both shower heads simultaneously. May require a pressure-balancing valve.
Pipe Layout Pipes must be extended to reach both outside walls. Consider using PEX or copper piping for durability.
Shower Head Type Choose compatible shower heads (e.g., fixed, handheld, or rain shower) based on preference and water pressure.
Wall Mounting Use waterproof mounting brackets or arms to securely attach shower heads to exterior walls.
Waterproofing Apply waterproof sealant around pipes and fixtures to prevent leaks and water damage.
Drainage Install proper drainage systems to handle water runoff from both shower heads.
Temperature Control Use a thermostatic mixing valve to maintain consistent water temperature for both shower heads.
Compliance Ensure installation complies with local building codes and regulations for outdoor plumbing.
Maintenance Regularly inspect and clean shower heads and pipes to prevent clogs and corrosion.
Material Durability Use weather-resistant materials for all components to withstand outdoor conditions.
Cost Higher initial cost due to additional plumbing, valves, and fixtures.
Installation Complexity Requires professional plumbing expertise for proper installation and waterproofing.

cyshower

Plumbing Configuration: Plan dual shower head layout, ensuring proper water pressure and supply lines

Installing two shower heads on outside walls requires meticulous planning to ensure consistent water pressure and efficient supply line management. Begin by assessing your home’s existing plumbing system. Measure the distance from the main water supply to the proposed shower heads and calculate the total pipe length needed. Use ½-inch pipes for supply lines to maintain adequate pressure, especially if the shower heads are high-flow models (2.5 GPM or more). If your system relies on a single water heater, consider its capacity to handle simultaneous use; upgrading to a tankless heater may be necessary for uninterrupted hot water.

Next, design the layout to balance water distribution. Position the shower heads at equal distances from the supply line’s T-fitting to prevent pressure disparities. Install a pressure-balancing valve at the branch point to regulate flow and avoid temperature fluctuations when both heads are in use. If one head is fixed and the other handheld, use a diverter valve to direct water to the active head, minimizing waste. Ensure all fittings are rated for outdoor use to withstand temperature extremes and corrosion.

Water pressure is critical for dual shower head systems. Test your system’s static pressure; it should ideally be between 40–60 PSI. If pressure drops below 40 PSI when both heads operate, install a booster pump to compensate. Alternatively, choose low-flow shower heads (1.8 GPM) to reduce demand on the system while maintaining performance. Insulate supply lines to prevent heat loss, especially in colder climates, as this can affect water temperature and pressure stability.

Finally, comply with local plumbing codes to avoid costly rework. Most jurisdictions require permits for outdoor plumbing installations and mandate specific materials, such as PEX or copper pipes, for durability. Hire a licensed plumber to verify your design and execute the installation, ensuring all connections are leak-proof and compliant. Regularly inspect the system for signs of wear, particularly at joints and valves, to prolong its lifespan and maintain functionality. With careful planning and execution, dual outdoor shower heads can provide a luxurious experience without compromising performance.

cyshower

Wall Mounting Options: Choose suitable brackets or arms for secure outside wall installation

Selecting the right wall mounting options is crucial for ensuring your dual shower heads are both functional and secure on exterior walls. The first step is to assess the wall material—whether it’s concrete, brick, or wood—as this dictates the type of anchor and bracket you’ll need. For concrete or brick, masonry anchors like sleeve anchors or wedge anchors provide robust support, while wood walls require sturdy screws or bolts rated for outdoor use. Always use stainless steel or brass hardware to prevent rust and corrosion in outdoor environments.

When choosing brackets or arms, consider the weight and water pressure of the shower heads. Adjustable arms offer flexibility in positioning, allowing you to angle the shower heads for optimal coverage. Fixed brackets, on the other hand, provide a more streamlined look but require precise placement during installation. Look for products with a weight capacity that exceeds the combined weight of your shower heads and pipes to ensure long-term stability.

Installation depth is another critical factor. Ensure the brackets or arms are mounted at the correct distance from the wall to accommodate both shower heads without overcrowding. A spacing of 12 to 18 inches between heads is ideal for most setups, but measure your specific shower heads to confirm. Use a level during installation to guarantee even water flow and prevent uneven pressure that could strain the mounts.

For added durability, apply a waterproof sealant around the mounting hardware to protect against moisture infiltration. This is especially important for exterior walls exposed to rain or humidity. Regularly inspect the mounts for signs of wear or loosening, particularly after extreme weather conditions, and tighten as needed. With the right brackets and careful installation, your dual shower heads will remain secure and functional for years to come.

cyshower

Waterproofing Solutions: Apply sealants and barriers to protect walls from moisture damage

Installing two shower heads on outside walls introduces a unique challenge: managing moisture penetration. Waterproofing becomes critical to prevent structural damage, mold growth, and costly repairs. The key lies in creating a robust barrier system that repels water while allowing for necessary expansion and contraction of materials.

Silicone sealants, known for their flexibility and adhesion, are a cornerstone of this defense. Apply a high-quality, mold-resistant silicone sealant around all penetrations, including shower head pipes, valves, and fixtures. Ensure a minimum 3/16-inch bead thickness, smoothing it with a caulking tool for a watertight seal. Reapply sealant annually or as cracks appear.

Behind the scenes, a waterproof membrane acts as a secondary line of defense. Sheet membranes, like PVC or rubberized asphalt, are ideal for this application. Cut the membrane to size, ensuring it extends at least 6 inches beyond the shower area on all sides. Adhere it to the wall using a compatible adhesive, following manufacturer instructions for proper bonding. Overlap seams by a minimum of 2 inches and seal with membrane-specific tape.

For added protection, consider a liquid-applied membrane. These polyurethane or acrylic coatings are brushed or rolled onto the wall, forming a seamless, flexible barrier. Apply two coats, allowing each to dry completely before proceeding. This method is particularly effective for irregular surfaces or areas with multiple penetrations.

Remember, proper surface preparation is crucial for any waterproofing system. Clean walls thoroughly, removing all debris, paint, and loose material. Repair any cracks or holes with a suitable patching compound, allowing it to cure completely before applying sealants or membranes. By combining these strategies, you can create a robust waterproofing system that safeguards your exterior walls from the moisture generated by dual shower heads, ensuring a long-lasting and trouble-free installation.

cyshower

Valve and Diverter Setup: Install a diverter valve to control water flow between heads

Installing a diverter valve is the linchpin for managing water flow between two shower heads on outside walls. This setup allows you to switch between heads or run them simultaneously, depending on your preference. Diverter valves come in various types, including two-way and three-way models, each designed to handle specific flow dynamics. For dual shower heads, a three-way diverter valve is ideal, as it enables you to direct water to one head, the other, or both at once. This flexibility ensures you can customize your outdoor shower experience without compromising water pressure or functionality.

The installation process begins with selecting the right diverter valve for your system. Ensure it’s compatible with your existing plumbing and can handle the water pressure required for two shower heads. Position the valve near the water supply line, typically behind the shower wall or in an accessible utility area. Connect the valve to the main water supply, then run separate lines to each shower head. Use durable, weather-resistant piping to withstand outdoor conditions, such as PEX or stainless steel. Secure all connections with Teflon tape or thread sealant to prevent leaks.

One critical consideration is maintaining balanced water pressure. A pressure-balancing diverter valve can help regulate flow, ensuring neither shower head loses pressure when both are in use. If your water supply has limited pressure, install a booster pump to compensate. Additionally, incorporate shut-off valves at each shower head for individual control. This setup not only enhances convenience but also allows for maintenance or repairs without disrupting the entire system.

For a seamless finish, conceal the diverter valve and plumbing within the wall or a decorative enclosure. Use waterproof materials to protect the components from outdoor elements. Test the system thoroughly after installation, checking for leaks and ensuring both shower heads operate as intended. Regular maintenance, such as cleaning the valve and inspecting connections, will prolong the system’s lifespan and keep it functioning smoothly.

In summary, a diverter valve setup is essential for dual shower heads on outside walls, offering control and versatility. By choosing the right valve, ensuring proper installation, and maintaining balanced pressure, you can create a functional and enjoyable outdoor shower experience. With careful planning and execution, this setup transforms your outdoor space into a luxurious retreat.

cyshower

Drainage and Sloping: Ensure proper drainage to prevent water pooling near shower heads

Water pooling around outdoor shower heads isn't just unsightly—it's a breeding ground for mold, mildew, and slippery hazards. Proper drainage and sloping are critical to prevent this, ensuring your dual shower head setup remains functional and safe.

Frequently asked questions

Yes, you can install two shower heads on outside walls, but it requires proper planning, plumbing modifications, and ensuring the walls are structurally sound to support the fixtures.

You’ll need to extend or reroute water supply lines to both locations, install a dual shower valve or diverter, and ensure adequate water pressure for both heads.

Yes, a pressure balance or thermostatic valve with dual outlets or a diverter valve is recommended to control water flow and temperature for both shower heads.

Use a high-pressure pump if needed, choose shower heads with lower flow rates, and ensure your plumbing system can handle the additional demand without pressure loss.

Yes, check local building codes for requirements on plumbing, waterproofing, and structural integrity. Proper sealing and drainage are critical to prevent water damage.

Written by
Reviewed by

Explore related products

Share this post
Print
Did this article help you?

Leave a comment