2019 Guide to Flat Roofs
Many industrial and commercial buildings have flat roofs, and there are plenty of different options to use for your flat roofing materials. The various flat roof types have their pros and cons, so if you are looking to have a flat roof installed, read on to learn more about the choices you have.
Built-Up Roofing (BUR)
This choice is typically the most inexpensive route. Most people enjoy saving money, which is why this option is the most common flat roof system. The top coat of it is usually tar or gravel, which can make this the most attractive option as well. BUR roofs are a buildup of many alternating layers of bitumen and roofing felts. This makes them very durable, because if one layer gets damaged you have plenty of other layers to protect your building. Their many layers also provide great insulation for the building.
Unfortunately, the many layers are also the downfall to this roof. The layers end up becoming very heavy, which often requires reinforcing your existing roof. This can increase the amount spent on the roofing project and prolong construction time.
Polyvinyl Chloride (PVC)
This roofing is a highly reflective and durable single ply membrane. PVC is nonpermeable and does not allow water to pool up. It is also rather easy to install. These factors make it a popular option for flat roofs. The downside to this material is that it is rolled onto the roof, which means it is not seamless. Eventually, this will allow water to work its way into the roofing material.
The material can be glued or taped as it is being rolled out, which can help it resist water for a long time. But it will not last as long as a seamless roofing system would. PVC is slightly more flexible than thermoplastic polyolefin or TPO roofs, and most contractors prefer working with PVC.
Ethylene Propylene Diene Monomer (EPDM)
PVC and EPDM are both single ply roofing membrane materials and they both have seams. EPDM is different from PVC in that it is made of rubber rather than plastic, which makes it a durable system. The adhesive on the seams becomes weaker over time and leaves the roof leaky. This system requires the most roofing maintenance.
Frederic Roofing is a full-service and trusted St. Louis roofing contractor with decades of top-notch experience installing all different types of flat roofing systems for commercial properties. If you are looking for someone to install your flat commercial roof with the highest quality materials, then call Frederic Roofing.
We will make sure your flat roof is designed to your specific qualifications and needs. We know the ins and outs of St. Louis city and county building codes and international standards, and we can ensure that your roof meets them. Your roof is an important part of your building, and we will build it to code and your specifications.