What size roof screws to use for IBR 686 and Corrugated 762 metal roofing in South Africa
Let’s chat about IBR roof sheets. IBR roof sheets are a type of roofing profile commonly used in construction. “IBR” stands for “Inverted Box Rib,” referring to the shape of the profile of the roofing sheet. IBR roof sheets are typically made of Zinc-aluminium, Aluminium, and galvanized steel or other metals and polymers. They feature a series of raised ribs running along their length, which are crucial for the selection of the appropriate roofing screws.
These ribs not only provide additional strength and rigidity to the roofing sheets but also play a significant role in the compatibility with roofing screws, making them suitable for use in a variety of applications, including residential, commercial, and industrial buildings. The correct choice of roofing screws is essential to fully leverage the durability, weather resistance, and ease of installation of IBR roof sheets, making them a popular choice for roofing projects.
Roofing Screws for IBR profile.
Provided no blanket type or rigid board insulation is installed over purlin, the most common roofing screw used to install IBR sheets into timber purlins is TIMTAPP 12 x 75mm Hex Washer Flange (HWF). When installing the same profile into steel purlins, METAPP 12 x 65mm HWF can be used.
Now, onto Corrugated roof sheets.
You’ve probably seen these before—they’re the ones with that classic wavy or corrugated pattern. These sheets are also made of materials like Zinc-aluminium, Aluminium, and galvanized steel. Corrugated roof sheets are also valued for their aesthetic appeal. The distinctive corrugated pattern can add visual interest to a building’s exterior and is often associated with traditional and rustic architectural styles.
Roofing Screws for Corrugated profile.
Provided no blanket type or rigid board insulation is installed over purlin, the most common roofing screw used to install Corrugated sheets into timber purlins is TIMTAPP 12 x 65mm Hex Washer Flange (HWF). When installing the same profile into steel purlins, METAPP 12 x 50mm Fully Threaded HWF can be used.
Don’t know how many roof screws to use for IBR and Corrugated profiled sheets?
We recommend 5 roof screws per square meter for IBR and 7 roof screws per square meter for Corrugated. Should any excess roof screws remain, it is recommended that you secure a roof screw in every rib along the gutters edge and or ridgeline.
In South Africa, Class 3, Class 4, and Class 5 fasteners are recommended for external roofing applications. When in doubt, consult with experts like Corroshield South Africa for personalized advice about roofing screws.
This blog is meant to serve as a guide, always follow the roof sheeting manufacturers guidelines and recommendations.
In navigating the complexities of selecting the ideal roof screws for your IBR 686 and Corrugated 762 metal roofing projects, the importance of expert advice cannot be overstated. With a myriad of factors to consider, from material compatibility to environmental conditions, the guidance of seasoned professionals is invaluable. Corroshield South Africa stands ready to offer you bespoke advice and high-quality roofing fasteners tailored to your unique requirements.
Whether you’re embarking on a new construction project or undertaking a renovation, our team is here to ensure your roofing is secured with the utmost precision and durability. Contact Corroshield South Africa today to elevate your roofing project with expertly chosen fasteners, ensuring peace of mind under the African sky.
