Metal roof replacement costs and the factors that influence it

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.

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.

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.