Preventing and Solving Common Issues with Corrugated Metal Roofing

Condensation Prevention

Condensation on corrugated metal roofing sheets can lead to mould growth, corrosion, or structural damage. Some effective strategies that can prevent condensation and create a more durable and healthier environment under your metal roof include:

• Proper ventilation: Ventilation options, like soffit, ridge, and turbine vents, can help ensure adequate air movement for humidity and temperature regulation in the roof space.
• Insulate your roof: Insulation helps the interior surface of corrugated metal roof panels maintain a constant temperature and avoid the warm and cold contrasts that can cause condensation on surfaces.
• Use vapour barriers: Installing vapour barriers on the warm side of the insulation prevents moisture from reaching the cool metal surface.
• Seal joints and gaps: Ensure an adequate seal on all seams and joints to prevent moist, warm air from infiltration into the roof space.

Rust and Corrosion Management

Rust and corrosion management is imperative in maintaining your metal roof's integrity, functionality, and aesthetic appeal. Prevent oxidization from moisture, pollutants, and chemical reactions from dissimilar metals with the following tips:

• Cleaning: Remove debris that can trap moisture and accelerate the corrosion process.
• Regular inspections: Identify early signs of corrosion, such as peeling paint, scratches, rust spots, or discoloured areas, to prevent further damage.
• Paint and treatments: High-quality corrugated roofing sheets have a protective paint or corrosion treatment. Touch up any damaged areas as needed.
• Proper drainage: Ensure sufficient drainage to redirect water off the roof surface and regularly inspect for gutter and downspout clogs.

Noise Reduction Strategies

Nothing is worse than being unable to carry on a conversation during a heavy rainstorm because of a noisy roof. Here are some soundproofing strategies:

• Insulate ceiling and walls: Add some insulation between the roof and ceiling and inside the walls. You’ll reduce exterior and interior noise while lowering heating and cooling costs. 
• Install the panels correctly: Installing panels with the proper fasteners in the correct places prevents lifting and shifting and allows for better soundproofing.
• Use roof underlayment: A critical factor in soundproofing a metal roof is a good quality roof underlayment installed with corrugated roof panels.

Leak Prevention and Repair

The metal roofing industry typically relies on silicone or high-solids sealants and specialized roofing tape for preventing and repairing leaks using the following strategies:

• Fasteners: Replace deteriorated fasteners and apply enough roof sealant to encapsulate the new bolt head and a ½” around it. 
• Seams and joints: Clean the joint or seam before taping or adding sealant.
• Roof penetrations: Reflash leaking skylights or vents rather than covering them with sealant. An adequately secured flashing with the recommended sealant will ensure a tight seal. 

Energy Efficiency Enhancement

Metal roofing systems have a cool coating technology with reflective pigments, which absorb less solar energy and reduce heat transfer into the building. This thin-film paint system is available in a multitude of colours and also adds to the durability and longevity of panels. You can expect significant energy savings during the summer due to the reduced need for air conditioning.

Dealing with Expansion and Contraction

Everything expands and contracts when temperatures change. But, unlike other roofing products, the amount of expansion and contraction of metal roofing is predictable, so designers can allow for it in their roofing systems.

Seams and overlaps have enough room to allow for expansion and contraction within the joint. Fastening methods also allow for movement by combining metal clips and fasteners so the metal panels can have an accordion effect.

Corrugated Metal Roofing Sheets — Beauty, Efficiency, and Sustainability

A metal roofing system combines sustainability with functionality and a visually appealing aesthetic. 

For the industry's highest quality products and service, turn to Phoenix Metals for custom metal roofing in Calgary. We specialize in cladding panels and metal roofing for residential, commercial, and agricultural buildings.

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