Avoiding Bad Roof Replacements

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As licensed builders and roofing specialists, Sig Roofing Group have frequently been called to rectify poor-quality roof replacements across Brisbane and Queensland. Hiring an unreliable roofing contractor can not only cost you a significant amount of money but also result in a roof susceptible to leaks and severe damage.

If you’re planning a roof replacement or suspect you might need one soon, consider these important factors when evaluating a roofing contractor.

Is the roofing contractor QBBC Licenced ?

The Queensland Building and Construction Commission (QBCC) regulates the building and construction industry in the state. Contractors undertaking projects valued at over $3,300 are required to possess a QBCC licence. This licence indicates that the contractor has the essential qualifications and experience to carry out your roof replacement properly and in accordance with regulations.

If a roofing contractor does not have a QBCC licence or refuses to provide it, it’s a red flag. Such a contractor is unlikely to perform a professional roof replacement job.

Does the roofing contractor use high quality materials ?

The choice of metal roofing sheets greatly affects the lifespan of a roof during a replacement.

Sig Roofing Group utilise top-tier Australian manufacturers like BlueScope Steel due to its superior quality and dependability. However, to save costs, some contractors may use lower-quality products from overseas.

Roofs installed with new BlueScope roof sheets can come with up to a 30-year warranty, whereas cheaper alternatives typically last only 15 to 20 years.

When it comes to roofing, it’s wise to do it right the first time to avoid higher costs down the road. Sig Roofing Group only use quality products for all installations.


Will the roofing contractor prepare a Safe Work Method Statement (SWMS)?

While we find roofing work rewarding, working on roofs requires serious attention to safety.

Height-related dangers, like falls and electrical hazards, are obvious and must be managed. However, there are also less apparent risks, such as exposure to ultraviolet radiation.

A reputable roofing contractor will always assess potential risks and develop a Safe Work Method Statement (SWMS) before starting a roof replacement. This document details the safety measures, including the use of personal protective equipment and worker supervision, to mitigate risks.

Always ensure your roofing contractor prepares a SWMS and ask to review it. Failure to do so not only jeopardises the contractor’s safety but also yours.


Will the Roofing Contractor Plan to Lay the Roofing Sheets Correctly?

Insuring correct installation of roofing sheets is crucial, yet it can be challenging for the uneducated to verify. Many roofing contractors overlook essential details when laying roofing sheets.

Proper installation requires meticulous adherence to manufacturer specifications. For instance, the spacing between screws must be precise and consistent across the entire roof.

A critical aspect to clarify with a roofing contractor is whether they will “turn up” the ends of the sheets during a roof replacement. Turning up the sheets at the high end of the roof is essential to prevent wind-driven rain from entering the roof cavity.

This practice is particularly vital for low-pitched roofs, especially in Queensland, where extreme weather conditions can be challenging for roofs.

Turning up the sheets is a relatively simple task that can be performed by a roofing contractor using a specialised tools. However, many contractors overlook this step.

Additionally, the sheets must be installed against the prevailing wind direction. Failure to do so can lead to water flying up against the joint of two sheets, potentially affecting the roof’s longevity. It’s surprising how often roofs are installed with sheets in the same direction as the wind!

Sig Roofing Group recommends discussing with a roofing contractor their approach to laying the sheets and whether they will in fact turn up the sheets. This can help determine their level of professionalism.

Does the contractor intend to install a roofing blanket?

During a roof replacement, it’s crucial to install a roofing blanket. This blanket is placed over the battens and features a foil side along with a glass or wool side. These two sides work together to provide both insulation and a moisture barrier.

Without a roofing blanket, your roof’s longevity is at risk. The blanket plays a key role in preventing rust caused by condensation from moisture build-up.

It’s important to note that ceiling bats are different from a roofing blanket; they serve as a separate insulation component for your home.

While some contractors may skip installing a roofing blanket to save on labour and time, the Sig Roofing Group strongly recommends including it. In most cases, a roofing blanket is a must-have for a well-insulated and protected roof.

Contact Us To Avoid Bad Roof Replacements Today

With 20 years of experience, the Sig Roofing Group excels in roof replacements, new installs and repairs in Queensland. We are frequently called upon to rectify errors made by other contractors. So contact us today for a free obligation quote.


Phone: 1300 744 766

Email: admin@sigroofinggroup.com.au

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