How Snow and Ice Can Affect Metal Roof and Wall Cladding

I think most of us have seen our fair share of snow and ice this week, but if you have a building that has metal roof or wall cladding, you may want to read this.
Snow and ice can have a huge impact metal roof and wall cladding and potential problems can arise, but you can so do something to protect your building during winter. You can protect your building and these issues are preventable.

Winter may bring a picturesque charm, but it can also spell trouble for your building. Snow and ice can create structural challenges, especially for metal roof and wall cladding. At Cladding Coatings, we’ve seen these issues firsthand and know how prevention and maintenance can save time and money for property owners.

Pressure and Weight

Snow may look light and fluffy, but it can accumulate into substantial weight, especially in heavy storms. Ice adds even more strain, forming layers and adding additional load on your roof and cladding. This excess weight can compromise the integrity of your roofing system, leading to deflections or, worse, sagging that weakens the structure.

Thermal Expansion and Contraction

Winter temperature changes cause thermal expansion and contraction in metal surfaces. During the day, the metal warms up, expanding slightly, and at night, the freezing temperatures cause it to contract. This cycle can lead to stress in roof panels or metal cladding and result in warping, loosening of seams, or hairline cracks that may worsen over time.

Ice Dams and Water Penetration

Meltwater from snow and ice can pool on surfaces and refreeze, creating ice dams at the edges of roofs. These block water drainage and can lead to backflow that seeps into joints, gaps, or openings in the cladding. Once water enters these areas, it may cause internal damage, structural weakening, or even mould growth.

Corrosion and Surface Coatings

Metal is susceptible to rust and corrosion, especially during winter when moisture and salt from grit used on roads can accumulate on surfaces. If the cladding’s protective coating is damaged or worn, this can accelerate the corrosion process. Once corrosion sets in, it compromises the durability and aesthetic appeal of the metal.

Damage from Falling Ice

Large icicles and sheets of ice forming on roofs or upper areas of cladding can break off and damage the sections below. These falling chunks of ice can dent or deform metal panels, creating additional repair needs.

Preventative maintenance should always be your first line of defence. Here are some practical and effective ways to protect your building’s metal cladding this winter:

Regular Inspections

Schedule regular roof and cladding inspections to detect any visible signs of wear, corrosion, or damage early. Look for areas with rust, loose screws, or panels that may allow water ingress. At Cladding Coatings, we offer professional site surveys to identify these issues before they escalate.

Remove Excess Snow and Ice

Clearing snow and ice from your roof can prevent excess weight and the formation of ice dams. Be cautious when removing snow to avoid damaging the cladding surface. If you’re managing a large commercial space, professional assistance may be the safest option.

Repair Coatings and Sealants

Timely application of high-performance coatings can protect metal cladding from moisture and corrosion. At Cladding Coatings, we use premium systems to restore and protect your surfaces. Sealants around joints and seams should also be inspected to ensure they remain watertight.

Address Cut Edge Corrosion

Cut edge corrosion is a common issue in metal cladding, particularly on roof edges or overlaps where protective coatings wear thin. Winter weather can accelerate this corrosion. Proactive treatment using advanced systems can prevent further deterioration and extend the life of your cladding.

Improve Building Insulation

Ensuring your building is well-insulated can help prevent ice dams caused by heat escaping through the roof. Proper insulation also reduces thermal expansion and contraction, minimising wear and strain on the cladding system.

Conduct Maintenance Before Winter Begins

Ideally, prepare your building before winter starts. Whether it’s repairing damaged panels or applying protective coatings, early action can significantly reduce the chance of winter-related issues. Our team at Cladding Coatings provides tailored maintenance plans designed to keep your building in optimal condition all year round. Read more here.

At Cladding Coatings, we specialise in refurbishing and protecting metal roof and wall cladding for commercial and industrial properties across the UK. With over 10 years of guaranteed protective solutions, our expert team ensures your property can withstand even the harshest weather conditions.

• Cladding repairs
• Roof and wall coating
• Onsite spraying
• Rooflight refurbishment
• Corrosion treatments
• Gutter maintenance
• RoofSafe installation
• Preparation for solar panels

Check out our case studies to see how we’ve helped clients safeguard their buildings here.

Winter weather can be unforgiving, but with timely maintenance and the right protection plan, your metal roof and cladding can withstand anything this season throws its way. Whether you’re dealing with corrosion, leaking joints, or faded coatings, Cladding Coatings has the expertise and solutions to keep your building in top shape.

Your building deserves the best care, even in the harshest seasons. Trust Cladding Coatings to deliver durable protection and peace of mind!