To attach TPO to your roof, you have three main options available to you. You can use glue to fasten the rubber to the underlayment, which is known as an attached roof. A fastened roof uses screws to hold itself down, and a ballasted roof uses rocks or pavers. “Freudenberg https://zanderchlor.wikiworldstock.com/896114/etwa_roofing_company_in_oswego