TPO roofing has become one of the premiere flat roofing materials due to its affordable price and durability. TPO roof seams are heat-welded, providing a tight bond that protects against roof leaks. It’s important to have a certified, experienced TPO installer because the efficacy of the roof is determined by how well the seams are heat welded.
Building codes require that a 3-inch ISO board is installed when a flat roof is torn down to the deck. This substantially raises the price of a TPO roof installation. Depending on the condition of your current roof, you may be able to achieve the same results as a TPO roof with a silicone roof coating.