Incorporating effective water barriers is crucial in building design to protect structures from moisture damage. Hobs play a vital role in creating barriers around areas prone to water exposure, such as balconies, terraces, and rooftops..
The purpose of a hob.
The main application for hobs is on the exterior of a building to separate internal and external spaces. The main function of hobs in this application is to provide a raised barrier around the perimeter of the balcony, to prevent water from flowing or seeping into the underlying structure. This becomes especially critical in regions experiencing heavy rainfall or consistent exposure to moisture.
Exterior areas are exposed to various weather conditions like rain, snow, and humidity, making hob barriers essential in preventing water from seeping into interior spaces. This protection is particularly important for areas like entrances, where water accumulation can lead to slippery floors and potential accidents.
Hobs also serve another purpose by creating a visual and tactile distinction between different flooring surfaces. This distinction alerts individuals to changes in elevation, preventing trips and falls. The raised structures of hobs provide a clear demarcation between the balcony area and the rest of the building, ensuring safety and accessibility for residents and visitors.
Types of hobs.
Hobs are generally made from concrete and can be constructed using different methods. The three common types are precast hobs, conventional formwork hobs, and prefabricated hob frames. Each method has its pros and cons, which should be carefully considered based on the specific project requirements.
1. Precast Hobs.
Precast hobs offer benefits such as time savings, uniformity, and cost reduction due to their off-site manufacturing process. However, challenges can arise when transporting and installing precast products due to their weight, requiring careful balance during transportation and additional labor for installation.
2. Conventionally Formed Hobs.
On the other hand, conventionally formed hobs, which involve using timber formwork, are lightweight and cost-effective. However, timber’s susceptibility to warping with moisture can result in hobs that are not perfectly straight or square. Additionally, the construction process is more time-consuming and labor-intensive compared to other methods.
3. Prefabricated Hob Frames.
Prefabricated hob frames, made from sheet metal, provide advantages over both precast and conventional methods. They are lightweight, easy to install, and eliminate the need for stripping the formwork after the concrete cures. Prefabricated hobs also ensure straight and square results consistently. However, custom-made hobs may require preordering, which could be a disadvantage for less organized construction sites.
FastHob™ by FTI Group.
At FTI Group, we offer FastHob™, a preformed concrete hob frame system designed to simplify and accelerate the construction of water barriers between living and outdoor areas. Our custom-made hobs are manufactured to your project’s specifications and supplied in three-metre lengths, making it convenient to order in lineal meters.
Partnering with FTI Group means collaborating with a family-owned and operated company that has over 27 years of experience in manufacturing prefabricated formwork systems for the Australian construction industry. We are a one-stop shop for all your prefabricated concrete formwork needs, allowing you to order stairs, decking, beams, and hob frames in one go and receive them in a single delivery.
For a reliable supplier that prioritises quality and efficiency, choose FTI Group for your next project.