Metal Roof Coating to Stop Leaks

metal roofing close up on tiles

With proper care of your metal roof coating, your metal made roof can last up to 50 years. Along with the panels, roof coating sealants are used to stop water from getting into and damaging the interior of your house.

Weather and other external conditions can interfere with the integrity of your sealant coating. But if you know how to fix a leaking roof, your coating can increase the lifespan of your roof by 10 to 20 years.

Benefits of Metal Roof Coating

Using a metal roof coating system has many benefits including:

  • Extending lifespan of Roof
    A good metal coating can extend the lifespan of your roof by 10 – 20 years
  • Energy-Efficient
    Properly coated metal roofs improve energy-efficiency inside a building. The sealant keeps heat from escaping and prevents cold air from entering indoors during the wintertime. During the summer, however, heat cannot get in so your interior stays cooler during warmer months.
  • Protects From Water Damage
    When properly applied, a metal roof coating system stops water from getting into your walls and ceiling. This prevents moisture and moulding from affecting the foundation of your property.
  • Prevents Rust
    Metal roof coating systems add an extra layer of protection to your metal panels. Although metal roofs are made to combat rust, roof coating protects the metal from rusting and deteriorating prematurely.

Roof Coating Types

There are four types of metal roof coating. A metal roof contractor can help you choose the right type of sealant for your roof.

Silicone Roof Coating

Silicone sealants are the most expensive and most durable. The higher the silicone content in the coating, the more durable the sealant is. Silicone is the more favoured coating material because it does not fade or chalk as easily as other types. Warranties for silicone-based sealants are between 10 to 20 years.

Polyurethane Roof Coating

Polyurethane is the least expensive of all the metal roof coatings. It is typically used on exposed fasteners and panels. The darker colour sealants tend to fade within five to seven years if directly exposed to sunlight. Polyurethane coating only comes with a 3 to 5-year warranty that does not cover fading or chalking.

Butyl Roof Coating

Butyl metal roof leak coatings are best used on low-slope or flat roofs. It is the most water-resistant among all coating types. It also provides the best vapour barrier for full insulation.

Acrylic Roof Coating

Acrylic sealant is the most environmentally-friendly coating. This type is best for steeply-sloped roofs and will last longer than butyl tips.

Structure of metal roof with coating

Metal Roof Coating Price

Prices of installing metal coat roofing to stop leaks vary and depend on several factors including roof size and shape, type of shingles, sealant brand, and labour costs. Sealant prices range between $1.50 – $3.00 per square foot not including labour.

Invest in Metal Roof Coating

Metal roof coatings stop leaks when applied properly to your roof. With regular maintenance, the sealant can extend the life of your roof up to 20 years. To waterproof your roof, a metal roof contractor can help you choose the right coating for your roof.