Shutters for Coastal Homes: Dealing with humidity and salt

Living by the coast offers breathtaking views and a serene lifestyle, but it also brings unique challenges for home maintenance, especially when it comes to choosing the right shutters. The combination of high humidity and salt air can be harsh on various materials. In this blog, we’ll explore the best shutters options for coastal homes, focusing on durability, maintenance, and style.

Understanding Coastal Conditions:

The Impact of Salt and Humidity:

Living in a coastal area means facing a unique set of environmental factors that can significantly affect building materials. 

The salt in the air, carried by sea breezes, is highly corrosive and can aggressively attack various materials, especially metals. 

This salt-laden air can cause metal components of shutters to rust and weaken over time, compromising both their strength and appearance. 

Humidity, another constant in coastal regions, poses its own challenges. It can cause materials like wood to absorb moisture, leading to swelling, warping, or even rotting over time. 

These factors combined create a harsh environment for any exterior fixture, including shutters, demanding materials that can endure these conditions while maintaining their structural integrity and visual appeal.

Choosing Materials Wisely:

Selecting the right material for shutters in coastal homes is crucial for longevity and ease of maintenance. 

High-grade aluminum is a top choice due to its resistance to rust and corrosion. It can withstand the salty air without deteriorating, making it a long-lasting option for coastal properties. 

Stainless steel is another excellent choice, particularly if it’s marine-grade, as it offers superior resistance to rust and corrosion compared to regular steel. 

For those who prefer the natural beauty of wood, options like treated cedar or teak can be viable. 

These woods have natural oils that offer some resistance to moisture and decay, and when treated with the right sealants, they can stand up well to coastal conditions. 

Vinyl shutters are a practical and cost-effective alternative, known for their resistance to both moisture and salt. 

They don’t require painting and are easy to clean, making them a low-maintenance option for busy homeowners. 

Composite materials, which often combine wood fibers with plastic or resin, are also gaining popularity. 

These materials are engineered to resist the damaging effects of humidity and salt, offering the look of wood without the susceptibility to warping or rotting.

Best Shutter Options for Coastal Homes:

Composite Shutters:

Composite shutters are increasingly becoming the go-to choice for homeowners in coastal areas. 

These shutters are crafted from a blend of materials, such as PVC, fiberglass, and sometimes wood fibers, which are engineered for maximum durability. 

The key advantage of composite shutters lies in their resistance to the harsh coastal environment. 

They are specifically designed to withstand high humidity and salt air, making them less likely to warp, crack, or peel over time.

This resilience ensures that they maintain their structural integrity and appearance, even in the face of relentless sea breezes and moist conditions.

Additionally, composite shutters offer the aesthetic appeal of traditional wood shutters but with enhanced durability.

They come in a variety of styles and finishes, allowing homeowners to achieve the desired look without compromising on quality.

The ease of maintenance is another significant benefit; these shutters typically require just a simple wipe-down to keep them looking fresh and clean.

Vinyl Shutters:

Vinyl shutters present an excellent option for those seeking a balance between cost-effectiveness and durability.

Made from sturdy PVC material, vinyl shutters are inherently resistant to moisture, salt, and other elements typical of coastal climates.

They do not rust, corrode, or degrade easily, making them a practical choice for homes exposed to sea air.

Vinyl shutters are available in a wide range of styles, from traditional louvered designs to more modern panel styles, and they come in various colors to match or complement the home’s exterior.

Their lightweight nature makes them easy to install and operate. One of the most appealing aspects of vinyl shutters is their low maintenance requirement.

They do not need painting or staining and can be easily cleaned with soap and water, making them a hassle-free option for busy homeowners.

Wood Shutters with Protective Coatings:

For those who prefer the timeless elegance of wood, there are still viable options for coastal living.

Woods like teak, cedar, and mahogany are naturally more resistant to moisture and decay, making them suitable for humid and salty environments.

However, to ensure their longevity in coastal conditions, these wooden shutters should be treated with high-quality sealants and protective coatings.

These coatings are designed to create a barrier against moisture and salt, preventing the wood from absorbing humidity and protecting it from the corrosive effects of salt air.

Regular maintenance, including reapplying the protective coatings every few years, is essential to preserve the wood’s natural beauty and structural integrity.

While wood shutters require more upkeep than composite or vinyl options, they offer unparalleled aesthetic appeal and can be custom-crafted to fit any window size or style, making them a worthwhile investment for those who value the classic look of real wood.

Maintenance Tips for Coastal Shutters:

Regular Cleaning:

In coastal areas, the accumulation of salt and sand on shutters can be a common issue. This can lead to corrosion and deterioration over time, especially on metal parts and painted surfaces.

To combat this, it’s essential to clean your shutters regularly. Use a soft brush or cloth to gently remove any loose dirt or debris. Then, wash the shutters with a mixture of mild soap and fresh water.

This simple routine can effectively remove salt deposits and prevent the buildup of corrosive elements. It’s also a good idea to rinse your shutters with fresh water after storms or particularly windy days when salt spray is more likely to have settled on surfaces.

Routine Inspections:

 Regular inspections are key to maintaining the integrity of your shutters in a coastal environment. Check for any signs of rust, especially on hardware components like hinges and screws.

Look for any cracks, warping, or peeling in the material, whether it’s wood, vinyl, or composite. Pay special attention to areas where moisture might accumulate or where salt exposure is most direct.

Catching and addressing these issues early can prevent more extensive damage and costly repairs in the future.

It’s also a good opportunity to ensure that all moving parts are functioning smoothly and that shutters are securely attached to the building.

Reapplying Protective Coatings:

For homeowners with wood shutters, maintaining the protective coatings is vital. The harsh coastal environment can quickly wear down these barriers, leaving the wood exposed to moisture and salt.

Every few years, or as recommended by the manufacturer, reapply a high-quality sealant or paint. This not only helps to protect the wood from the elements but also keeps your shutters looking fresh and vibrant.

When reapplying coatings, it’s important to thoroughly clean and prepare the surface, removing any old, peeling, or flaking layers.

This ensures that the new coating adheres properly and provides maximum protection. For best results, choose sealants and paints that are specifically designed for marine or coastal environments, as they offer enhanced resistance to salt and humidity.

Additional Protective Measures:

In some cases, additional measures might be necessary, especially in extremely harsh coastal environments.

Installing storm shutters or protective panels during the off-season or when severe weather is expected can provide an extra layer of defense against the elements.

Additionally, lubricating hinges and other moving parts with a corrosion-resistant product can help prevent rust and ensure smooth operation.


Choosing the right window shutters for a coastal home is about balancing functionality, durability, and style. By selecting materials that can withstand the unique challenges of a coastal environment and adhering to a regular maintenance routine, you can ensure that your shutters remain beautiful and functional for years to come. Remember, the right shutters not only protect your home but also enhance its coastal charm.

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