A comprehensive guide to exploring the various designs and applications of flat roof systems.
When it comes to selecting the right flat roof system for your roofing project, there are several options available. Each system is specifically designed to provide protection from the elements and ensure waterproofing. However, each system also offers unique designs and installation techniques. To make an informed decision, it is advisable to consult with a knowledgeable roofing contractor who is well-versed in all the available systems. This way, you can assess the pros and cons, costs, and durability of each system before proceeding with your flat roof project.
Exploring the Three Main Flat Roof Systems
While the specific applications and recommendations may vary, there are three primary flat roof systems that should be considered. Each system has its own distinct advantages and disadvantages. Understanding the fundamentals of each approach can help you determine the requirements of your roofing project.
Modified Bitumen: This system utilises an asphalt-based roofing solution with a multi-ply design. The roofing membranes are modified with plastic (APP) or rubber (SBS) to enhance flexibility. Multiple layers are aligned, and the seams are joined using torches or hot air welders to create a watertight layer. The Modified Bitumen system is favoured for its uniformity in sheet quality and its ability to withstand extreme temperatures. In some cases, it can be combined with the Built-up Roof system to create a hybrid solution.
Single Ply or TPO: This is one of the most commonly used flat roof systems and involves a single-ply design, typically using plastic membrane sheets (PVC or TPO). Many professionals consider TPO to be a combination of the best features from EPDM and PVC. However, the choice depends on your specific needs. The single layer of sheets is typically welded to provide waterproofing. This system is appreciated for its consistent product quality, lightweight flexibility, and ease of installation. Customers also benefit from the added energy efficiency of the Single-Ply method, as the lighter-coloured materials reflect heat and contribute to lower heating and cooling bills.
Built-Up Roof or BUR: The Built-Up Roof system consists of multiple layers of sheets that are bonded together. This robust system creates a watertight seal using tar and gravel across the seams of the layers. BUR has stood the test of time and is known for its durability and resistance to ageing and weathering. Roofing contractors have long considered this system to be reliable and effective.
Determining the Best Flat Roof System
To determine the most suitable flat roof system for your project, it is essential to consult with a professional who is knowledgeable about each method. Contact us today to receive a complimentary estimate for your flat roof replacement. Our team of skilled roofing contractors can guide you in selecting the ideal solution that meets the specific requirements of your building.
