We last left off with our discussion of modified bitumen and the pros and cons with its application. In this post, we will discuss what is probably one of the most popular options for low sloped or flat roofs- TPO. Commercial Roofing continues to take strides and advances with new applications. TPO has risen to the forefront in the single ply membrane market. Single ply membranes are simply what they say they are, a full waterproof roof system in a one ply application. As opposed to asphalt roofs/BUR and modified bitumen roofs which usually consist of multiple plies or layers, a TPO roof is complete after the installation of one ply/layer.
Further, TPO can be mechanically attached (i.e. with screws) or fully adhered thereby providing versatility for many different roof requirements. TPO’s ease of installation, versatility and single ply aspects provide cost saving benefits to both the roofing company and property owner. Moreover, TPO membranes come with energy star ratings and high solar reflectance helping reduce energy costs and lengthen the roof’s longevity.
With FM Global, U.L. and ASTM standard approvals the right designed system by the roofing company can provide weather protection from severe winds and hail despite TPO being a single ply. TPO roofs also come with the coveted no dollar limit (NDL) warranties from the manufacturer when installed by a certified roofing company. Some manufacturers offer warranties of 20 years or more for TPO systems.
Further, many property owners have aging BUR or asphalt roofs and depending on your local code and building parameters TPO can be used as a roof recover or retrofit. This avoids the dreaded and costly roof tear off.
With this brief overview in mind, we will continue our TPO discussion in Part Two…
If you have any questions or concerns regarding your building and its low slope roof feel free to contact Cobalt at (800) 820-4182 or visit us at www.commercialroofingindallas.com