Temporary roofing is an excellent solution for construction projects during wet and rainy seasons. Whether you need to cover the entire building or a specific area under construction, choosing the right temporary cover is vital, especially in Auckland, where rain is abundant throughout the year.
You can protect your construction equipment and the workers involved by opting for a temporary roof cover. These roof structures often utilise scaffolding bases to create a controlled environment, ensuring a dry work area, maintaining specific temperatures for certain instruments, and controlling humidity. Let’s explore some of the options for temporary roof covers:
Corrugated iron, or Cl sheets, or Tin hat scaffolding, is a traditional choice for temporary roof covers and remains popular today. These metal sheets can be reused for multiple jobs when installed correctly. However, it requires lifting each sheet into position, making the installation labour-intensive. Safety precautions, such as edge protection, should be taken to create a secure shelter for construction work.
- Reusable sheets
- Suitable for extreme weather conditions
- Does not allow light to pass through
- Labour-intensive installation
- It can be noisy due to rattling in the wind and rain
Keder roofing is a popular modern choice that offers effective protection against harsh weather conditions. It comprises two main components: Kedar PVC roof sheeting and an aluminium beam structure. Aluminium beams, typically 1.5 or 3 meters long, are assembled to reach a maximum height of 15 meters (specific sizes may vary between manufacturers). Trusses are strengthened using single and double tie bars, and diagonal bars with snap-on claws are used for additional reinforcement. Once the beams are installed, Keder roof sheets are pulled into the guide tracks at the ridge position.
- Creates a well-lit working environment
- Reusable sheets
- It can be costly compared to other options
- Less versatile than shrink wrap
Shrink Wrap Sheeting
Shrink wrap sheeting stands out from other temporary roofing systems. It is a low-cost and quick material that provides temporary protection against rain. The shrink wrap offers a neat appearance and is well-suited for smaller or more complex temporary roofs. Proper planning is essential, including scaffolding boards for reinforcement and a handle rail for added safety and fall protection. Training in shrink-wrapping techniques is recommended for optimal results. Weather conditions should be considered during installation, as wet or windy conditions can affect the shrink wrap’s strength. A self-adhesive foam strip also prevents water ingress through screw holes in the shrink wrap.
- Lightweight sheets
- Adapts to the scaffolding structure’s shape and size
- Protects against dust, dirt, and weather conditions
- Quick installation and dismantling
- Forms a tight seal
- Not suitable for large building projects
- Softens in high temperatures and produces odours
- Limited moisture-proof performance
Roof tarps, also known as blue roofs, are an excellent choice for temporary roofing, particularly in cases where homes or buildings have suffered damage from severe weather events like hurricanes and tornadoes. These tarps can be easily installed and provide sturdy protection against leaks caused by holes or missing shingles.
- Lightweight and easy to install
- Readily available
- Installation can be risky
- Short lifespan
Tips for Choosing a Temporary Roofing Solution
When selecting a temporary roof cover, consider the following factors:
- Weather resistance: Ensure the roof is high quality and weatherproof to withstand the elements and protect your construction workers and equipment.
- Material weight: Choose a lightweight material that won’t excessively burden your project’s timeline and labour costs while still supporting the additional weight of the roof.
- Installation and dismantling time: Evaluate the time required to fit and remove the roof cover and how it impacts your project’s schedule. Some materials can be easily removed, while others may need to be cut off or bundled separately.
- Price range: For small projects, low-cost options like roof tarps may be suitable, while larger projects may require more robust materials.
In conclusion, selecting the right temporary roof cover is crucial for your construction project. Consider the benefits and drawbacks of each option, ensuring sturdiness, weather resistance, and affordability. Choose the solution that best fits your budget and project requirements.