Aluminium Siding: A Comprehensive Guide
Aluminium siding, once a dominant force in the residential siding market, offers a compelling blend of durability, affordability, and ease of maintenance. While it has been somewhat overshadowed by vinyl siding in recent decades, aluminium continues to be a viable option for homeowners seeking long-lasting and aesthetically pleasing home exteriors. This comprehensive guide will delve into all aspects of aluminium siding, covering its advantages, disadvantages, installation process, maintenance requirements, cost considerations, and comparisons with other siding materials.
What is Aluminum Siding?
Aluminium siding is exterior cladding made from aluminium coils rolled and shaped into various profiles. These profiles typically mimic the appearance of traditional wood siding, such as clapboard or board and batten. Aluminium siding is coated with a durable finish, often paint or a powder coating, to protect it from the elements and provide a wide range of colour options. The aluminium is relatively thin, typically ranging from 0.024 to 0.032 inches thick, making it lightweight and easy to handle during installation.
Historically, aluminium siding gained popularity in the mid-20th century as a cost-effective alternative to wood siding. Its resistance to rot, insects, and fire made it an attractive option for homeowners seeking a low-maintenance exterior. While vinyl siding eventually surpassed aluminium in market share, aluminium remains a popular choice for certain applications, particularly in coastal areas where salt air can corrode other materials.
The Advantages of Aluminium Siding
Aluminium siding offers several compelling advantages that make it a worthwhile consideration for homeowners:
Durability and Longevity
One of the primary benefits of aluminium siding is its exceptional durability. Aluminium is naturally resistant to rust and corrosion, making it an excellent choice for homes in coastal regions or areas with high humidity. Unlike wood, aluminium will not rot or decay, and it is impervious to insect infestation. Proper installation and maintenance can provide a long-term exterior cladding solution for 40 years or more.
Low Maintenance
Aluminium siding requires very little maintenance compared to other siding materials. It does not need to be painted or stained regularly, saving homeowners time and money. Occasional cleaning with soap and water is typically sufficient to remove dirt and debris. Unlike vinyl siding, aluminium is less prone to mould and mildew growth, reducing maintenance requirements.
Fire Resistance
Aluminium is a non-combustible material, meaning it will not ignite or contribute to the spread of fire. This can provide homeowners with added peace of mind and potentially lower insurance premiums. Aluminium siding can be a valuable safety feature in areas prone to wildfires.
Pest Resistance
As mentioned earlier, aluminium siding is completely resistant to insects, including termites, carpenter ants, and other wood-boring pests. This eliminates the need for costly pest control treatments and protects the home’s structural integrity.
Recyclability
Aluminium is highly recyclable, making it an environmentally friendly siding option. When removed or replaced, aluminium siding can be recycled and used to create new products, reducing waste and conserving resources.
Variety of Styles and Coloursaluminium siding is available in various styles and colours to suit different architectural preferences. It can be manufactured to mimic the look of traditional wood siding, such as clapboard, Dutch lap, and vertical board and batten. Aluminium siding can also be painted or powder-coated in virtually any colour, allowing homeowners to customise the appearance of their homes.
Lightweight
Aluminium is a relatively lightweight, making it easier to handle and install than heavier siding options like wood or fibre cement. This can reduce labour costs and speed up the installation process.
The Disadvantages of Aluminium Siding
Despite its many advantages, aluminium siding also has some drawbacks that homeowners should consider:
Denting and Damage
One of the most significant disadvantages of aluminium siding is its susceptibility to denting. Aluminium is a relatively soft metal, and it can be easily dented by hail, tree branches, or even accidental bumps. While minor dents may not be noticeable, larger dents can detract from the home’s appearance and may require repair or replacement.
Fading and Chalking
Over time, the paint or powder coating on aluminium siding can fade or chalk due to exposure to sunlight and the elements. This can result in a dull or uneven appearance and may require repainting to restore the siding’s original colour. However, modern coatings are much more resistant to fading than older formulations.
Higher Cost Compared to Vinyl
While aluminium siding is generally more affordable than wood or fibre cement, it is typically more expensive than vinyl siding. This cost difference can be a significant factor for homeowners on a tight budget.
Can Conduct Electricity Aluminium is a good conductor of electricity, which can pose a safety hazard if the siding comes into contact with electrical wires. Properly grounded siding prevents electrical shocks.
Noise Transmission
Aluminium siding can transmit noise more easily than other siding materials, such as wood or insulated vinyl. This can be a concern for homeowners who live in noisy environments.
Installation Requires Expertise
While aluminium siding is relatively lightweight, its installation requires specialised skills and tools. Improper installation can lead to problems such as warping, buckling, and water damage. To ensure a proper and long-lasting installation, hiring a qualified contractor with experience installing aluminium siding is essential.
Aluminium Siding Installation
Installing aluminium siding is a multi-step process requiring careful attention to detail. Here’s a general overview of the installation process:
Preparation
The first step is to prepare the wall surface by removing existing siding, loose paint, or debris. The wall should be clean, dry, and structurally sound. Before proceeding, any necessary repairs to the sheathing or framing should be completed.
Installing Underlayment
A layer of underlayment, such as house wrap or felt paper, is installed over the sheathing to provide a moisture barrier and protect the wall from water damage. The underlayment should be properly lapped and sealed to prevent water penetration.
Installing Furring Strips (Optional)
In some cases, furring strips may be installed over the underlayment to create a rain screen system. This allows air to circulate behind the siding, helping to dry out any moisture that may accumulate and preventing mould growth. Rain screen systems are particularly beneficial in humid climates.
Installing Starter Strips
Starter strips are installed along the bottom of the wall to provide a secure attachment point for the first row of siding. The starter strips should be level and properly aligned to ensure the siding is installed straight.
Installing Siding Panels
The siding panels are installed one row at a time, starting at the bottom and working upwards. Each panel is interlocked with the panel below it and fastened to the wall with nails or screws. The fasteners should be driven in straight and flush with the surface of the siding, without over-tightening. Expansion gaps should be left at the ends of the panels to allow for thermal expansion and contraction.
Installing Trim and Accessories
Once the siding panels are installed, trim and accessories are added to finish the installation. This includes corner posts, J-channels around windows and doors, and soffit and fascia. The trim and accessories should be properly sealed to prevent water penetration.
Final Inspection
After the installation, a final inspection should be conducted to ensure that all panels are properly installed, all fasteners are secure, and all trim and accessories are properly sealed. Any necessary adjustments or repairs should be made at this time.
Maintaining Aluminium Siding Aluminium siding is relatively low-maintenance, but some basic maintenance is required to keep it looking its best and ensure its longevity:
Aluminium siding should be cleaned regularly to remove dirt, dust, and debris. This can be done with a garden hose, soft brush, or sponge. For stubborn stains, a mild detergent can be used. Avoid using harsh chemicals or abrasive cleaners, as these can damage the siding’s finish. Power washing can be used, but it should be done carefully to avoid damaging the siding.
Inspect for Damage
Regularly inspect the siding for dents, scratches, or other damage. Minor dents can often be tapped out with a rubber mallet. Larger dents or damaged panels may need to be repaired or replaced.
Touch-Up Painting
If the paint or powder coating on the siding begins to fade or chalk, it can be touched up with a matching paint. Before painting, the siding should be cleaned and primed to ensure proper adhesion.
Check for Loose Fasteners
Periodically check the siding for loose fasteners. Tighten any loose screws or replace any missing nails.
Clear Gutters and Downspouts
Keep gutters and downspouts clean and debris-free to prevent water from overflowing and damaging the siding.
Trim Vegetation
Trim any vegetation that is growing close to the siding. Overhanging branches can damage the siding and create a breeding ground for mould and mildew.
The Cost of Aluminium Siding
The cost of aluminium siding can vary depending on several factors, including the quality of the siding, the complexity of the installation, and the location of the project. Here’s a general overview of the cost considerations:
Materials Cost
The cost of aluminium siding materials, including the siding panels, trim, and accessories, typically ranges from $3 to $7 per square foot.
Labor Cost
The labour cost for installing aluminium siding can range from $2 to $5 per square foot. This includes the cost of preparing the wall surface, installing the underlayment, and installing the siding panels, trim, and accessories.
Total Cost
The total cost of installing aluminium siding typically ranges from $5 to $12 per square foot. For a typical 2,000 square foot home, this would translate to a total cost of $10,000 to $24,000.
Additional Costs
In addition to the materials and labour costs, the project may involve additional costs, such as removing old siding, repairing damaged sheathing, or installing a rain screen system.
Factors Affecting Cost
Several factors can affect the cost of aluminium siding, including:
- The quality of the siding: Higher-quality siding typically costs more.
- The siding style: More complex styles like board and batten usually cost more to install.
- The complexity of the installation: Homes with intricate architectural details may require more labour and materials, increasing the cost.
- The project’s location: Labour costs can vary depending on the region.
- The contractor’s experience and reputation: More experienced and reputable contractors may charge higher rates.
Aluminium Siding vs. Other Siding Materials Aluminium siding is just one of many options for homeowners. Here’s a comparison of aluminium siding with some other popular siding materials: Aluminium vs. Vinyl Siding
Vinyl siding is the most popular siding material in the United States, offering several advantages over aluminium siding. Vinyl is generally less expensive than aluminium and more resistant to denting. However, aluminium is more durable than vinyl and more resistant to fire and pests. Aluminium is also more recyclable than vinyl.
Aluminium vs. Wood Siding
Wood siding is a classic and aesthetically pleasing option, but it requires significantly more maintenance than aluminium siding. Wood is susceptible to rot, insects, and fire and must be painted or stained regularly. Aluminium is more durable and requires less maintenance than wood.
Aluminum vs. Fiber Cement Siding
Fiber cement siding is a durable and low-maintenance option similar in appearance to wood siding. Although fibre cement is more expensive than aluminium, it is more resistant to denting and fire. Aluminium is lighter than fibre cement and easier to install. Aluminium vs. Steel Siding
Steel siding is a durable and low-maintenance option similar to aluminum siding. It is stronger than aluminum and more resistant to denting. However, steel is more expensive than aluminium and more prone to rust if the finish is damaged. Aluminium is also lighter than steel and easier to install.
Is Aluminium Siding Right for You? Whether to install aluminium siding depends on your needs and preferences. Consider the following factors when making your decision:
Budget
Aluminium siding is generally more expensive than vinyl siding, but it may be more affordable than wood or fibre cement siding. Determine your budget and choose a siding material within your price range.
Climate
Aluminium siding is a good choice for homes in coastal areas or areas with high humidity, as it is resistant to rust and corrosion. It is also a good choice for areas prone to wildfires, as it is non-combustible.
Maintenance Requirements
Aluminium siding requires very little maintenance compared to other siding materials, making it a good choice if you are looking for a low-maintenance option.
Aesthetics
Aluminium siding comes in a wide range of styles and colours. Choose a style and colour that complements your home’s architecture.
Longevity
Aluminium siding can last 40 years or more with proper installation and maintenance, making it a good long-term solution.
Finding a Qualified Aluminium Siding Contractor
Installation of aluminium siding requires specialised skills and tools. Hiring a qualified contractor with experience installing aluminium ensures a proper, essential, and lasting installation. Here are some tips for finding a qualified contractor:
Get Referrals
Ask friends, family, or neighbours for referrals to reputable siding contractors.
Check Online Reviews
Read online reviews of siding contractors in your area to get an idea of their reputation and quality of work.
Verify Licensing and Insurance
Ensure that the contractor is licensed and insured to protect yourself from liability in case of accidents or damage.
Get Multiple Bids
Get bids from multiple contractors to compare pricing and services.
Ask for References
Ask the contractor for references from previous clients. Contact the references to inquire about their experience with the contractor.
Review the Contract Carefully
Before signing a contract, please review it carefully to ensure it includes all the project details, including the scope of work, materials to be used, payment schedule, and warranty information.
Conclusion
Aluminium siding offers a compelling combination of durability, affordability, and low maintenance. While it has some drawbacks, such as its susceptibility to denting, its many advantages make it a viable option for homeowners seeking a long-lasting and aesthetically pleasing home exterior. By carefully considering the pros and cons of aluminium siding and comparing it with other siding materials, homeowners can make an informed decision that meets their needs and preferences. Always hire a qualified contractor to ensure a proper and long-lasting installation.