Metal roof replacement costs and the factors that influence it

The cost of roof replacement is determined by several factors such as the size and pitch of the roof, the accessibility of the home site, and the type of roofing material to be used. Typically, homeowners tend to overlook the importance of their roof until it begins to show signs of damage.

This often leads to the delay of necessary repairs or restoration until it becomes an urgent matter. As a result, there may be less time to make an informed decision regarding the costs of materials and labor required to restore the roof to a livable and presentable condition.
Having a good quality roof is essential for maintaining the integrity and appearance of your home. In cases where the roof is old, damaged, or leaking, opting for a replacement instead of patching it up can often be a more cost-effective solution. Additionally, a newly renovated roof can increase the value of your property.

This article aims to provide you with an estimate of the cost involved in re-roofing your home, covering the following points:

There are two main types of roofing commonly used for residential properties:

  1. Metal Roofing: This type of roofing includes treated zinc-aluminium (also known as Colorbond) and untreated zinc-aluminium. Metal roofing is highly durable and flexible, with a warranty of at least 25 years. Compared to tiled roofing, metal roofing is more affordable to install and easier to maintain. The cost of supply and installation can vary widely, depending on the particular product used.
  2. Tiled Roofing: Tiled roofing typically comes in three different materials – terracotta, concrete, or slate. These tiles are frost-resistant and come in a variety of finishes. They are also non-combustible, making them a great option for bushfire-prone areas. Concrete tiles are highly durable and should last for at least 50 years, while slate is known for its durability and resistance to fading, cracking, and discoloration. Properly installed, slate can last for over a century. The cost of tile roofs varies, but generally expect to pay between $80 to $110 per square meter, including supply and installation.

What influences a reproofing cost?

To get an estimate of the cost involved in re-roofing your home, there are several factors to consider. The four main factors that will determine the cost of a new roof are:

  1. The type of roofing material you select
  2. The size of your roof, measured in square meters
  3. The pitch or angle of your roof
  4. The labor charges of your roofing contractor

If you have a steep roof pitch, an asbestos cement roof, or your site is difficult to access, then the cost of roof replacement will likely be higher. On the other hand, re-roofing cost is generally lower for simple roofs with single or double pitches, easy accessibility, and average roof size.
What is the cost of replacing a roof?

Apart from the cost of the new roof, you should also consider the expenses for removing and disposing of the old roofing material to estimate the total cost of replacing your roof.

For a typical 3-bedroom family home, the cost of removing and replacing the roof can vary depending on the level of work needed;:

  • replacing an existing metal skillion roof with Colorbond.
  • replacing existing tiles with Colorbond.
  • replacing an existing asbestos cement roof with Colorbond.

What factors impact the cost of metal roofing?

It’s rare to find two roofs that are exactly the same in terms of their requirements, especially if you live in a non-standard housing development. Additionally, the condition of the substructure below the roof can dictate what type of roof is needed, or what can or cannot be used on the structure.

A professional roofing company should provide you with a customized quote based on your specific needs. Here are the key factors they will consider when preparing your quote:

  • Surface area: The amount of material required to cover and trim the entire roof.
  • Complexity: The number of cuts, edges, valleys, and design features that need to be incorporated into the roof.
  • Material: The cost of the metal you choose.
  • Condition: The cost and time required to address any corrosion, decay, or structural damage to the substructure.
  • Manpower: The number of workers needed to complete the project within a reasonable timeframe.

Changing from tile roof to metal roof

Replacing a concrete tile Roof with metal, Colorbond or Zincalume roofing is a common practice among homeowners whose concrete tile roofs have reached the end of their life.

If you’re in this situation, you can choose to replace your tiled roof with a new Colorbond roof, available in many colors, or you can opt for a metallic Zincalume finish.

Replacing a concrete tile roof with a metal roof requires adherence to several Australian Building Standards. This is because the new metal roof will be significantly lighter than the original concrete tile roof. As a result, the roof timbers must be secured since a Colorbond or Zincalume roof weighs much less than concrete tiles. Brastin Roofing specializes in converting tile roofs to Metal roofs. You have the option to replace your old tile roof with metal roof from Australia’s top metal roofing suppliers.

When we replace your tile roof, we first remove the existing tile battens. These battens are not suitable for installing the new metal roof, so we replace them with new more suitable battens. We also upgrade the tie-down of your roof frame to the wall frame and provide an engineering certificate. Once the roof frame is ready, we suggest installing Insulation as an optional extra, followed by installing your new metal roof and accessories.

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