Metal Fences are a popular choice for outdoor boundaries and enclosures in the UK. However, with the country’s famously damp and rainy climate, an important consideration is how well these structures stand up to the elements over time. When opting for such installations, it’s advisable to consult Acorn Fencing Aldershot to ensure the durability and resilience of your fencing system.
Types of Metal Fences
There are several metals suited for outdoor fencing in the rainy British climate. Let’s examine the most popular options and their ability to withstand the elements.
Common Metal Fence Materials
- Steel – Extremely strong and durable. Prone to rusting unless properly treated. Comes galvanized or powder coated for weather protection.
- Aluminum – Lightweight, resistant to corrosion and rust. Not as sturdy as steel. Typically comes powder coated.
- Wrought iron – Decorative look. Prone to rusting unless treated. Usually coated for protection.
Out of the common metals, aluminum offers the best all-round weather resistance qualities, followed by properly treated steel. Wrought iron can also fare well with appropriate protective coatings.
Coating and Finishes
For metals like steel and wrought iron that are susceptible to rust, applying protective finishes is key for longevity in tough UK weather. Common options include:
- Powder coating – Heat-cured paint coating that is extremely durable. Provides excellent rust & corrosion protection. Available in various colors.
- Galvanization – Zinc coating that protects against rust through sacrificial corrosion action. Provides long-lasting defense but may eventually require repainting.
- Paint/enamel – Liquid paints that dry to form protective coating. Affordable option but requires more frequent touch-ups compared to powder coating or galvanizing. Ideal for aluminum, which doesn’t rust.
Of these, powder coating delivers superior rust-resistance and is most recommended for steel fences in the UK climate. Galvanized steel also performs well though may need repainting after some years. For existing fences, special weather-resistant paints and enamels add further protection.
Weather Conditions in the UK
To understand how our metal fences hold up, we must consider the conditions they constantly face outside.
Understanding UK Weather
The UK climate is classified as temperate oceanic. Key characteristics include:
- Cool temperatures – Rarely extremely cold or hot. Average annual temperature is around 10°C.
- High rainfall – Up to 40 inches annually. Wet weather prevails through most months.
- Windy – Constant moderate breezes. Storms and gales also common in winter.
- Damp/humid – Persistent moisture in the air. Higher humidity in coastal areas.
- Salt spray – Sea salt particles carried inland by wind corrode metals. A factor in coastal regions.
These conditions pose multiple challenges for outdoor metal structures.
Corrosion and Rust
Two of the biggest threats weather brings to metal fences are corrosion and rust.
Corrosion is the gradual destruction of metals by chemical reactions like oxidation. Rust refers to the reddish coating formed when iron or products containing iron corrode.
In fences, corrosion is accelerated by:
- Rain, moisture and humidity
- Salt spray from oceans
- Industrial pollution
- Temperature variations
Over time, unchecked corrosion creates holes, cracks and disintegration in metal. It also produces unsightly, flaky rust.
Preventing corrosion is thus vital for lasting weather resistance.
Maintenance Tips for Weatherproofing
Care and upkeep are essential for metal fences to thrive through tough UK weather.
Regular Cleaning
Frequent cleaning keeps fences looking good and lets you spot emerging issues early.
- Inspect closely twice yearly – early spring and fall. Look for damage, holes, rust spots.
- Use gentle cleaner and rinse well. Avoid abrasives or high pressure washing.
- For stubborn deposits or rust, use specialty fence cleaner.
- Touch up paint defects immediately to avoid progression.
Cleaning also prepares surfaces for reapplication of protective coatings whenever needed.
Protective Measures
Additional weatherproofing steps further shield metal fences:
- Rust converters – Transform rust into inert protective coating. Extend fence life.
- Apply extra layer of high quality, weather-resistant enamel paint every 2-3 years or when existing finish deteriorates. Choose color matching original shade.
- Coat older galvanized fences with zinc-rich paint to replenish sacrificial protection.
- Use weather sealants on crevices prone to moisture buildup. Reapply every year or as needed.
Addressing minor issues promptly is key to avoiding costly repairs later.
Frequently Asked Questions
Can all metal fences withstand UK weather?
- Aluminum, powder coated steel and properly galvanized steel fences resist weather effects well with routine care.
- Unprotected steel and wrought iron require additional treatments for adequate longevity. Their performance also depends on quality of materials used during manufacturing.
So while most metal fences can survive outdoors with appropriate protective measures, some need added effort to measure up to the UK climate.
How often should I inspect and maintain my metal fence?
- For fences in good condition – Inspect and clean twice yearly. Apply fresh paint/protective coatings every 2 to 3 years.
- Older or low quality fences – Inspect more frequently – up to 3 to 4 times yearly. May need paint touch ups or sealants every year.
- After severe storms – Conduct thorough checks for damage which could accelerate corrosion.
Tailor maintenance routine to your fence’s age, material and any pre-existing wear and tear.
Are there specific weatherproofing products recommended for UK climates?
When adding extra protection, use coatings formulated for wet conditions:
- Primers, paints and enamels described as weatherproof, anti-corrosion or marine grade. These provide maximum water repelling properties.
- Cold galvanizing sprays to deliver zinc corrosion cover similar to hot-dip galvanized steel. Much easier to apply on existing fences.
- Wax-based sealants that resist washout from rain. Provide excellent crevice protection.
Choosing quality products designed for harsh outdoor settings ensures optimal shielding in the damp British weather prevalent through the year.
Can I install a metal fence in coastal areas?
Metal fences can be successfully installed along coasts provided additional precautions are taken:
- For new fences, opt for aluminum or galvanized + powder coated steel rather than plain steel. These have enhanced corrosion resistance to withstand sea salt.
- Establish comprehensive maintenance routine – clean more frequently, apply weatherproofing treatments often.
- During repairs, use marine grade paints/primers tested for salt tolerance.
So while coastal climates demand extra diligence, metal fences still make practical boundaries by the sea with proper care.
What signs indicate that my metal fence needs immediate attention?
Watch for these red flags that signal likelihood of rapid deterioration:
- Flaking, cracked or bubbling paint that exposes base metal
- Visible metal pitting – small holes from corrosion
- Widespread rust coverage
- Jagged, sharp or pointed edges
- Leaning posts or whole fence segments
If you spot such issues, urgent intervention (like sanding back and repainting corroded areas) is needed to reinstate protective barriers and prevent escalation of damage. Seeking professional help at this stage is advisable.
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