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Choose Metal Roofing Central Coast

July 23, 2022

Advantages and disadvantages of metal roofing for your home

You need to know whether you're buying a house with a metal roof or installing a metal roof.

You're installing a metal roof.

Many different materials are available, whether you want to put a new roof on your home or completely replace the one you already have. But regardless of your roof type, metal roofing can be an attractive option because of its durability, low maintenance and energy efficiency.
You can choose steel (galvanised, Galvalume or aged), aluminium, copper, zinc and tin.
Product types include standing seam, pre-formed panels and granular coated panels. When choosing a style, you can choose from shingles, slates, tiles, shakes, shakes or vertical panels.
Also, remember that metal roof installation may vary depending on geographic location, manufacturer's guidelines and local building codes.

Advantages of metal roofing

Metal roofs offer many advantages, including:

  • Durability. Metal roofs can last between 40 and 70 years, depending on the material. Traditional asphalt roofs have an estimated life expectancy of 12-20 years.
  • Longevity. When properly installed, some metal roofs can withstand wind gusts up to 140 miles per hour, will not rust, will not crack, and (depending on the product chosen) are impact resistant. In addition, metal roofs do not require regular and costly maintenance that is often necessary with other roofing materials. However, they should be inspected periodically to ensure they do not need repair.
  • Safety. Metal roofs cannot ignite and burst into flames in the event of a forest fire or lightning strike.
  • Energy efficiency. Metal roofs reflect the sun's UV and infrared rays, which contribute to radiant heat from the roof surface, reducing cooling costs by 10-25%.
  • Environmentally friendly. Metal roofs have a recycled content of 25-95%, depending on the material used, and they are also 100% recyclable when removed as a roof. In contrast, most shingle waste ends up in household waste - up to 20 billion pounds a year.

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Disadvantages of metal roofing

Despite their many advantages, metal roofs also have some potential disadvantages.

  •  Affordability. Metal roofs can be up to two to three times more expensive than other roofing materials. Although the lifespan of a metal roof is much longer, investing in a metal roof only makes sense if you plan to stay in your home long enough to reap the economic benefits.
  •  Noise. Metal roofs can be noisier than other products in heavy rain or hail, depending on the type of roofing used in the installation (spaced or solid). Adding insulation in the attic can sometimes solve this problem, but this can increase costs.
  •  Expansion, shrinkage and fasteners. Metal roof structures attached as large panels are designed to expand and contract as they heat up and cool down. However, both exposed and concealed fasteners have a different service life. In addition, depending on the climate, neoprene washers and screws used during installation may wear and loosen over time.
  •  Inconsistency of the colour scheme. Years later, when a repair is needed, or a house is added, finding an exact match to the existing metal can be challenging.
  •  Performance. Water collecting on the roof due to poor installation or repair can cause severe damage. Inferior metals may also be thinner and less durable. In addition, some metals rust in certain climates or dent more quickly than others during hail storms or installation.

Metal roofing used to be used primarily for commercial projects but is now one of the fastest-growing materials used for residential and commercial roofing in Australia. 

More advantages of metal roofing for the Central Coast

Knowing the pros and cons of a metal roof is essential. Therefore, this section of the article will explain the advantages of metal roofing.

Minimum roof pitch

A low-slope roof is one whose pitch is less than 3 in 12, meaning that the roof rises 3 inches per horizontal foot. Some standing seam roofs can be used with a slope of 2 in 12 or even 1 in 12. 

Regardless of the structure's slope, a metal roof can be installed. The added advantage is that metal roofs with a low pitch are usually less expensive to build and require less roofing material than those with a steep angle.

Maximum drainage of rain and hail

For those living in areas with heavy rainfall, this is one of the best advantages of installing metal roofs. The surface of sheet metal is naturally hard and slippery, making it difficult for snow and water to take hold. In addition, if you install dark metal roofing or PVDF-coated metal roofing, the advantages of metal roofing are doubled. Dark metal roofs heat up quickly in the sun, which helps the snow to melt, and PVDF coating helps to reflect more sunlight, positively affecting air conditioning performance. 

Energy efficiency 

If you want to reduce your monthly costs, installing a metal roof can help. Houses with metal roofs can save up to 30% on monthly cooling costs.

Reflectivity: Reflectivity indicates how well the roof reflects the sun's rays. Metal roofs reflect the sun's UV radiation particularly well. If your roof reflects the sun, less heat is transferred to the attic. The less heat enters the attic, the lower your electricity bill.

Emissivity: Emissivity indicates how quickly a product cools down after dissipating heat. Your roof is exposed to extreme heat in summer. Whatever you do, the roof absorbs radiant heat and transfers it to the attic, where it is trapped, and your air conditioner struggles to dissipate it.

The sun continues to heat the roof, and the air conditioner has to work overtime to cool it back down. The battle between the roof and the air conditioner continues throughout the summer. To keep up this fight, your air conditioner is under extreme stress, which translates into higher energy bills. 

With energy-efficient metal roofs, your roof will be comfortably cool after the sun goes down, allowing your air conditioner to take a much-needed break, resulting in lower cooling costs.

roofing cental coast

Metal roofs are resistant to moss and fungus.

The reason wood and asphalt shingles have a shorter life span that they are susceptible to mould, moss and fungus. However, a metal roof protects you from all these fungal attacks. In addition, a metal roof protects your home from rodents, pests, raccoons and wild animals. They are not able to enter your attic.

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A metal roof is a fire-resistant roof.

This is one of the most significant advantages of metal roofs for people living in fire-prone areas. The fire resistance of a roof can be the salvation of a house when these tragic events occur. That is why paying attention to a material's fire resistance is so important, especially if you live in a fire-prone area.

Most metal roofing is classified as Class A fire resistant, which means that the flashing and the roofing material underneath provide additional protection against fire. Most people believe metal roofs attract lightning, but this statement is false. This is because most metal roofs are considered "Class A", which means that the flashing and underlying roofing material provide additional fire protection. 

This makes metal roofing one of the most fire-resistant options in the roofing materials market.

These advantages of metal roofing are why metal roofing is in demand. 

AWS roofing is the leading metal roof installation company on the Central Coast in NSW Australia
For more information about metal roofing - OR to see if your existing tile roof can be replaced with a new metal roof - Contact us today.

 

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